HomeMy WebLinkAbout09. SUBDIVISIONS
DESCRIPTION
PAGE
Tentative Map
414
Final Map
418
Pa rcel Ma p
418
Subdivision Agreement
420
Cash Deposit &
Performance Security
420
Improvements
423
Street Lighting
425
Sidewalks & Paths
427
Underground Utilities
428
Curb & Gutters
428
Turn-Around
429
Driveways
429
Streets
429
Street Width
430
Street Grades
431
Street Pavement
432
Street Trees
432
Monuments
432
Drainage
434-3 (4-33)
Water
439
Sanitary Sewer
439
Fences
..440
Park Dedication
"
440
Reversion to Acreage
443
,
Division 92 General Provisions
Chapter 92-2 Title, Purpose and Scope
Sections:
92-2.002 Title.
92-2.004 Purpose.
92-2.006 Scope.
Chapter 92-4 Definitions
Sections:
924.002
924.004
924.006
924.008
924.010
924.011
924.012
924.014
924.016
924.018
924.020
924.021
924.022
924.024
924.026
924.028
924.030
924.032
924.034
924.035
924.036
924.038
924.040
924.042
Title 9
SUBDIVISIONS*
General.
Ad visory agen cy .
Arterial street.
Block.
Building inspection department.
Civil engineer.
Collector street.
County.
Critically expansive soils.
Cul-de-sac.
Dwelling unit.
Engineering geologist.
Final map.
Flood control district.
Flood hazard.
Freeways.
Frontage.
Frontage improvements.
Frontage road.
Geologic hazard or potentially hazardous
soil conditions.
Health department.
Improvement plan.
Improvements.
Industrial street.
*For the statutory provisions pertaining to subdivided lands and subdivisions, see
Bus.. & Prof. C. ~ 11000 ff. For the statutory provisions regarding subdivision
maps and the Subdivision Map Act, see Bus. & Prof. C. ~ 11500 ff. For the
statutory provisions directing the adoption of an ordinance regulating and
controlling the design and improvement of subdivisions, see Bus. & Prof. C. ~~
11525, 11526 and 11543.5. As to the power of cities to regulate the division of
land which is not a subdivision, see Bus. & Prof. C. ~ 11540.1. For the statutory
provisions regarding exclusion of land from a subdivision, see Bus. & Prof. C. ~
11700 ff.
For grading provisions, see Chs. 716-2and 716-4, this code.
For sign provisions, see Chs. 88-6, 88-8, this code.
For land use and variance permit provisions, see Chs. 82-6, 88-6, this code.
395
SUBDIVISIONS
(Contra Costa County 3-15-78)
SUBDIVISIONS
92-4.044 Inundation.
92-4.046 Lot.
92-4.048 Major drainage channels or conduits.
92-4.050 Marginal-strip.
92-4.052 Median.
92-4.054 Minor drainage channels or conduits.
92-4.056 Minor street.
92-4.058 Minor subdivision.
92-4.060 Ordinance specifications.
92-4.062 Parcel.
92-4.064 Parcel map.
92-4.066 Path.
92-4.068 Planning department.
92-4.070 Ponding of local storm water.
92-4.072 Preliminary soil report.
92-4.074 Private road.
92-4.076 Public street.
92-4.078 Public works department.
92-4.080 Secondary drainage channels or conduits.
92-4.082 Sheet overflow.
92-4.084 Soil engineer.
92-4.086 Street.
92-4.088 Subdivider.
92-4.090 Subdivision.
92-4.092 Tentative map.
92-4.094 Thoroughfares.
Chapter 92-6 Exceptions
Secti ons:
92-6.002 Advisory agency findings.
92-6.004 Advisory agency conditions.
92-6.006 Modification of requirements.
Chapter 92-8 Conformance
Sections:
92-8.002 Conformance to code.
92-8.004 Compliance with specifications.
Chapter 92-10 Administration and Enforcement
Sections:
92-10.002 Action by interested persons.
92-10.004 Time limits.
Chapter 92-12 Notices of Violation and Merger and Certificates
of Compliance
Article 92-12.2 General
Sections:
92-12.202 Purpose.
(Contra Costa County 3-15-78)
396
SUBDIVISIONS
Article 92-12.4 Notices of Violation and Merger
Sections:
92-12.402 Knowledge.
92-12.404 Tentative violation recordation.
92-12.406 Violation hearing notice.
92-12.408 Merger notice recordations.
92-12.410 Merger hearing.
92-12.412 Planning commission hearing.
92-12.414 Board of supervisors hearing.
92-12.416 Violation action.
Article 92-12.6 Certificates of Compliance
Sections:
92-12.602
92-12.604
92-12.606
92-12.608
92-12.610
Division 94 Maps
Chapter 94-2 Tentative Maps
Article 94-2.2 General
Sections:
94-2.202 Tentative map.
94-2.204 Information required.
94-2.206 Data to accompany tentative map.
Article 94-2.4 Design Objectives
(Reserved)
Article 94-2.6 Filing
Sections:
94-2.602 General.
94-2.604 Referral to interested agencies.
94-2.606 Subdivision conference.
94-2.608 Requests for exceptions and variances.
94-2.610 Expiration~Extension.
Article 94-2.8 Action by Advisory Agency
Sections:
94-2.802
94-2.804
Application.
Fees.
Decision.
Denial-Action.
Map compliance.
Approval of tentative map.
Approval of exception and variance
applications.
94-2.806 Findings.
Article 94-2.10 Appeal
Secti ons:
94-2.1002 Appeal-Procedure-Fee.
Chapter 94-4 Final Maps and Parcel Maps
Article 94-4.2 Form and Contents
Sections:
94-4.202 Final and parcel maps-General.
397
(Contra Costa County 3-15-78)
SUBDIVISIONS
(Contra Costa County 3-15-78)
94-4.204 Boundary designation.
94-4.206 Lot designation.
94-4.208 Title sheet.
94-4.210 Affidavits, certificates, dedications, etc.
94-4.212 Scale, northpoint and basis of bearings.
94-4.214 Easements.
94-4.216 Linear, angular and radial data.
94-4.218 Adjoining comers of adjoining subdivisions.
94-4.220 City boundaries.
94-4.222 Monument location.
94-4.224 Soil report certificate.
94-4.226 Printing or lettering.
Article 94-4.4 Supplementary Documents
Sections:
94-4.402 Approval of supplementary documents-
Final maps and parcel maps.
94-4.404 Subdivision agreement.
94-4.406 Cash deposit and performance security.
94-4.408 Payment security.
94-4.410 Fee payment evidence.
94-4.412. Deed for easements or rights-of-way.
94-4.414 Joint use of right-of-way agreement.
94-4.416 Supplementary documents-Final maps only.
94-4.418 Tax letter-Security.
94-4.420 Soil report.
Article 94-4.6 Checking
Sections:
94-4.602 Prints required and fees.
94-4.604 Error of closure in traverse.
94-4.606 Public works department action.
Article 94-4.8 Approval
Sections:
94-4.802 Approval and filing of maps.
94-4.804 Time limit for recording.
94-4.806 Evidence of title.
94-4.808 Filing by units.
Division 96 Improvemen ts
Chapter 96-2 Plans
Article 96-2.2 Form and Contents
Sections:
96-2.202 General.
96-2.204 Contents.
96-2.206 Sewer plans.
96-2.208 Plans and profiles.
398
SUBDIVISIONS
Article 96-2.4 Action by Public Works Department
Sections:
96-2.402
96-2.404
96-2.406
96-2.408
Improvement plan review.
Corrected plans.
Review of revisions.
Review prerequisite for final map or
parcel map approval.
96-2.410 Supplementary plans and documents.
Article 96-2.6 Appeal
Sections:
96-2.602 Appeal procedure.
Chapter 96-4 Construction Work
Article 96-4.2 Inspection
Sections:
96-4.202 General.
96-4.204 Right of entry.
96-4.206 Work prior to inspection.
96-4.208 Fee.
Article 96-4.4 Completion
Sections:
96-4.402 General.
96-4.404 Penalty for delay in completion.
Article 96-4.6 Acceptance
Sections:
96-4.602 Recommendation by public works department.
96-4.604 Resolution of acceptance.
Chapter 96-6 Street Lighting
Article 96-6.2 Facilities
Sections:
96-6.202
96-6.204
96-6.206
96-6.208
96-6.210
96-6.212
96-6.214
96-6.216
96-6.218
96-6.220
96-6.222
Article 96-6.4
Sections:
96-6.402
96-6.404
96-6.406
General.
Near school sites.
R -12 or higher density districts.
Areas zoned for multiple family, business
or commercial uses.
Existing public streets.
Construction plans.
Size and location designation.
In tersections.
Review of plans.
Service rates.
Street light ownership.
Standards
Placement.
Underground wiring.
Electrolier installation.
399
(Contra Costa County 3-15-78)
SUBDIVISIONS
96-6.408 Ornamental poles.
96-6.410 Conformance to standards.
Article 96-6.6 County Service Areas (Street Lighting)
Sections:
96-6.602 Request for street lighting service.
96-6.604 Legal description.
Article 96-6.8 Energizing Costs
Sections:
96-6.802 Deposit required.
96-6.804 Disposition of deposit.
96-6.806 Unexpended deposit.
Chapter 96-8 Sidewalks and Paths
Article 96-8.2 Paths
Sections:
96-8.202 Along rear or side line of lots.
96-8.204 Easements.
96-8.206 Surfacing.
Article 96-8.4 Sidewalks
Sections:
96-8.402 Locations.
96-8.404 Width and thickness.
96-8.406 Obstruction restriction.
96-8.408 Relationship to curbs.
96-8.410 Relationship to right-of-way.
Chapter 96-10 Underground Utilities
Sections:
96-10.002 Exceptions.
96-10.004 Responsibility of subdivider.
96-10.006 Application of chapter.
Chapter 96-12 Curbs and Gutters
Article 96-12.2 General
Sections:
96-12.202 Conditions requiring curbs.
96-12.204 Block requirements.
96-12.206 Minimum grade.
96-12.208 Designation on improvement plans.
96-12.210 Minimum elevations.
Article 96-12.4 Turnarounds
Sections:
96-12.402 Cul-de-sac.
96-12.404 Radii for curb returns.
96-12.406 Private road turnaround.
Article 96-12.6 Driveways
Sections:
96-12.602 Encroachment permit required.
(Contra Costa County 3-15-78)
400
SUBDIVISIONS
Chapter 96-14 Miscellaneous
Sections:
96-14.002 Improvement of county streets.
96-14.004 Fire hydrants.
Division 98 Streets
Chapter 98-2 General
Sections:
98-2.002 Conformance to general plan.
98-2.004 Reserve strips.
98-2.006 Designation on final map or parcel map.
98-2.008 Angle of intersection.
98-2.010 Centerlines.
98-2.012 Distance between streets.
98-2.014 Block length.
98-2.016 Street name approval.
98-2.018 Street name signs.
98-2.020 Conditions requiring grade separation.
98-2.022 Classification.
98-2.024 Traffic safety devices.
98-2.026 Intersections.
Chapter 98-4 Width
Sections:
98-4.002 Minimum requirements.
98-4.004 Measurement.
98-4.006 Exceptions.
Chapter 98-6 Grades
Sections:
98-6.002 Maximum limits.
98-6.004 Minimum limits.
98-6.006 Pavement across intersection.
98-6.008 Streets entering intersection.
98-6.010 Vertical curves.
98-6.012 Minimum length of vertical curve.
98-6.014 Earth slopes in cuts or embankments.
98-6.016 Horizontal curves.
Chapter 98-8 Pavement
Article 98-8.2 Design
Sections:
98-8.202 General.
98-8.204 Soil tests.
98-8.206 Thickness of base material and s'Uffacing.
98-8.208 Crown.
Chapter 98-10 Street Trees
Sections:
98-10.002
98-10.004
98-10.006
-,
Removal.
Approval of species and planting.
Encroachment permit.
401
(Contra Costa County 9-15 -79)
SUBDIVISIONS
~
(Contra Costa County 9-15~79)
Division 912 Survey Monuments
Chapter 912-2 General Provisions'
Secti ons:
912~2,.002 Conformance to approved standards.
912-2.004 Allowable error.
912-2.006 Establishment of survey measurements.
912-2.008 Drainage easements.
Division 913 Bridge Crossings and Major Thoroughfares
Chapter 913-2 General
,Article 913-2.2 General Provisions
Se~tions:
913-2.202
913-2.204
Article 913-2.4
Sections:
913-2.402 General.
913-2.404 Area of benefit.
913-2.406 ,Bridge.
913-2.408 Building inspector.
913-2.410 Circulation element.
913-2.412 Construction.
913-2.414 General plan.
913-2.416 Major thoroughfares.
913-2.418 Public works director.
Chapter 913-4 Requirements
Article 913-4.2 Fees Required
Sections:
913-4.202 Subdivisions.
913-4.204 Building permits.
Article 913-4.4 Exceptions
Sections:
913-4.402
913-4.404
913-4.406
Article 913A.6
Sections:
913-4.602 In lieu considerations.
913-4.604 In lieu dedications.
913-4.606 Fee added condition.
Chapter 913-6 Procedures
Sections:
Purpose.
Regulations.
Definitions
Existing roads/bridges.
Existing buildings.
No double payment.
Reduction of Fee
913-6.002
913-6.004
913-6.006
913-6.008
913-6.010
Report.
Contents.
Method of fee apportionment.
Apportionment-Major thoroughfares.
Fee applicable to all property.
402
.,"!
913-6.012 Exempted property.
913-6.014 Notice of hearing.
913-6.016 Protest.
913-6.018 Withdrawal of protest.
913-6.020 Majority protest.
913-6.022 Partial protest.
913-6.024 Hearing.
913-6.026 Recording resolution.
Chapter 913-8 Financial Provisions
Sections:
913-8.002 Establishment of fund.
913-8.004 Deposit of fees.
913-8.006 Use of mqney.
913-8.008 Advance by county.
913-8.010 Debts.
913-8.012 County funds.
Division 914 Drainage
Chapter 914-2 Minimum Requirements
Sections:
914-2.002 Protection from surface waters.
914-2.004 Adequate storm drainage facilities.
914-2.006 Surface water flowing from subdivision.
914-2.008 Surface water flowing to subdivision.
914-2.010 Storm water disposal restrictions.
914-2.012 Runoff quantity determination.
914-2.014 Drainage facilities-Minimum capacities:
914-2.016 Closed conduit requirements.
914-2.018 Channel design stal'ldards.
Chapter 914-4 Appurtenances in Public Right-of-way
Article 914-4.2 Culverts
Secti ons:
914-4.202 Under-driveway culverts.
914-4.204 Street-crossing culverts.
914-4.206 Culverts outside the roadway.
Article 914-4.4 Roadside Ditches
Sections:
914-4.402 Discharge to roadside ditches.
914-4.404 Roadside ditch sections.
914-4.406 Purpose ofroadside ditches.
914-4.408 Roadside ditch gradients.
Article 914-4.6 Miscellaneous
Sections:
914-4.602 Piping requirements.
914-4.604 Storm drain inlets.
914-4.606 Drainage structures to allow for tidal
action and flood stage.
402-1
SUBDIVISIONS
(Contra Costa County 9-15-79)
SUBDIVISIONS
(Contra Costa County 9-15-79)
Chapter 914-6 Open Channels and Conduits
Secti ons:
914-6.002
914-6.004
914-6.006
914-6.008
914-6.010
914-6.012
914-6.014
Earth channels~Maximum design velocities.
Earth channels-Minimum velocities.
Earth channels-Side slopes.
Lined channels-Side slopes.
Closed conduits-Minimum flow line.
Closed conduits or lined channels-
Outlet velocity.
Clearance of natural channels.
402-2
SUBDIVISIONS
I
Chapter 914-8 Levees
Sections:
914-8.002 Compliance requirements.
914-8.004 Toe and slope requirements.
914-8.006 Top width.
914-8.008 Earth embankments.
914-8.010 Degree of protection.
914-8.012 Approval of design and construction.
914-8.014 Control and maintenance.-
Chapter 914-10 Easements
Article 914-10.2 Oosed Conduits
Sections:
914-10.202 Closed conduits-Minimum widths of
easements.
Article 914-10.4 Open Channels
Sections:
914-10.402 Improved channels-Width of easements.
914-10.404 Improved channe1s-'-Access easements.
914-10.406 Unimproved channels-Width of easements.
914-10.408 Unimproved channels-Structure setback.
914-10.410 Structures and landscaping within easements.
Article 914-10.6 Levees and Ponding Areas
Sections:
914-10.602 Easements for levees and pondingareas.
Chapter 914-12 Miscellaneous
Article 914-12.2 Ponding Areas
Sections:
914-12.202 Ponding areas-When permitted.
Article 914-12.4 Subdrainage
Sections:
914-12.402 Subdrainage-Where required.
Division 916 Water and Sewers
Chapter 916-2 Water
Secti ons:
916-2.002 Adequate supply.
Chapter 916-4 Sewers
Article 916-4.2 Sewerage
Sections:
916-4.202 Sewerage requirements.
Article 916-4.4 Sanitary Sewers and Sewage Treatment Plants
Sections:
916-4.402 Sewer system and sewage treatment plant
construction.
403
(Contra Costa County 3-15-78)
SUBDIVISIONS
(Contra Costa County 3-15-78)
Division 918 Fences
Chapter 918-2 General Provisions
Sections:
918-2.002
918-2.004
Required by hazardous conditions.
Required where street crosses watercourses
or drainage structures.
918-2.006 Required along outside boundaries of open
lined channel easements.
Division 920 Park Dedications
Chapter 920-2 General
Secti ODS:
920-2.002 Authority.
920-2.004 Plan.
920-2.006 Regulation.
Chapter 920-4 Requiremen ts
Sections:
920-4.002 Subdivisions
920-4.004 Single parcel development.
920-4.006 Exemptions.
Chapter 920-6 Standards for Area and Fees
Sections:
920-6.002 Dedication.
920-6.004 Amount of fee.
Chapter 920-8 Private Space
Sections:
920-8.002 Partial credit for private space.
920-8.004 Standards.
Chapter 920-10 Use and Time Limits
Sections:
920-10.002 Use of land and fees.
920-10.004 Establishment and development time.
920-10.006 Hold or transfer.
Chapter 920-12 Procedures
Sections:
920-12.002
920-12.004
920-12.006
General.
Decision- Factors.
Prerequisite for approval of final map,
parcel map, or building permit.
920-12.008 Trust-Administration.
920-12.010 Agency for development and maintenance.
920-12.012 Refunds.
920-12.014 Exemptions.
Division 924 Reversion to Acreage by Map
Chapter 924-2 Planning Commission Authority
Sections:
924-2.002 Map approval.
404
Chapter 924-4 Procedure
Article 924-4.2 Maps
Sections:
924-4.202 Filing.
924-4.204 Street and easement designation.
924-4.206 Bond, fee required.
924-4.208 Hearing.
924-4.210 Planning commission action.
924-4.212 Certification.
924-4.214 Filing for resubdivision.
405
SUBDIVISIONS
(Contra Costa County 3-15-78)
TITLE, PURPOSE AND SCOPE
Division 92
GENERAL PROVISIONS
Chapters :
92-2 Title, Purpose and Scope
92-4 Definitions
92-6 Exceptions
92-8 Conformance
92-10 Administration and :Enforcement
92-12 Notices of Violation and Merger
and Certifica tes of Compliance
Chapter 92-2
TITLE, PURPOSE AND SCOPE
Sections:
92-2.002
92-2.004
92-2.006
Title.
Purpose.
Scope.
92-2.002 Title. This title shall be known as
the "Subdivision Ordinance" of the county of
Contra Costa. (Ord. 78-5).
92-2.004 Purpose. This title is enacted for
the purpose of adopting subdivision regulations
in accordance with the Subdivision Map Act,
Division 2 of Title 7 of the Government Code of
the state of California, and repeals all other
regulations of the county in conflict with this
title; provided, however, that such repeal shall
not affect any agreement, contract, or bond
executed pursuant to such regulations or any
rights of action accruing thereunder. (Ord.
78-5).
92-2.006 Scope. Under the proVIsIons of
Division 2 of Title 7 of the Government Code,
state of California, referred to herein as the
Subdivision Map Act and, in addition to any
other regulation provided by law, the regulations
contained in this title shall apply to all
subdivisions hereafter made entirely or partially
within the unincorporated territory of the
county. (Ord. 78-5).
407
Sections:
92-4.002
924.004
924.006
924.008
924.010
924.011
924.012
92-4.014
924.016
924.018
924.020
924.021
924.022
924.024
924.026
924.028
924.030
924.032
924.034
924.035
924.036
924.038
924.040
924.042
924.044
924.046
924.048
924.050
924.052
924.054
92-4.056
924.058
924.060
924.062
924.064
92-4.066
924.068
924.070
924.072
924.074
924.076
924.078
924.080
924.082
924.084
92-:-;2.002-92-2.006
Chapter 92-4
DEFINITIONS
General.
Advisory agency.
Arterial street.
Block.
Building inspection depart-
ment.
Civil engineer.
Collector street.
County.
Critically expansive soils.
Cul-de-sac.
Dwelling unit.
Engineering geologist.
Final map.
Flood control district.
Flood hazard.
Freeways.
Frontage.
Frontage improvements.
Frontage road.
Geologic hazard or potentially
hazardous soil conditions.
Health department.
Improvement plan.
Improvements.
Industrial street.
Inundation.
Lot.
Major drainage channels or
conduits.
Marginal strip.
Median .
Minor drainage chaQnels or
conduits.
Minor street.
Minor subdivision.
Ordinance specifications.
Parcel.
Parcel map.
Path.
Planning department.
Ponding of local storm water.
Preliminary soil report.
Private road.
Public street.
Public works department.
Secondary drainage channels
Sheet overflow.
Soil engineer.
(Contra Costa County 3-15-78)
92-4.002-92-4.022
SUBDIVISIONS
92-4.086
92.4-088
92-4.090
92-4.092
92-4.094
Street.
Subdivider.
Subdivision.
Tentative map.
Thoroughfares.
92-4.002 General. As used in this title, the
following words shall have the meanings set
forth in this chapter. (Ord. 78-5).
92-4.004 Advisory agency. The planning
commission is designated as the advisory agency
with respect to tentative maps relating to
subdivisions of five or more lots and shall have
all powers and duties with respect to said maps
and the procedures relating thereto which are
specified by law and by this title. The zoning
administrator elects to refer said maps to the
planning commission for consideration,
approval, conditional approval or disapproval.
The zoning administrator is designated as the
advisory agency with respect to tentative maps
relating to subdivisions of four or less lots and
shall have all powers and duties with respect to
said maps and the procedure relating thereto as
specified by law and this title.
The planning department is designated as the
advisory agency for purposes of reviewing and
approving a tentative map pursuant to Article
94-2.202 of this title. (Ord. 78-5).
92-4.006 Arterial street. "Arterial street" is
any street or road passing adjacent to or through
the subdivision, which carries the major flow of
traffic, and for which the major traffic may
ultimately be in excess of two thousand four
hundred vehicles per day. (Ord. 78-5).
92-4.008 Block. "Block" means the length
of the frontage along the property line between
consecutive streets intersecting the frontage; and
may also mean that area bounded on all sides by
the adjacent streets, rights-of-way, railroads,
public areas, or subdivision boundary, and
includes one or more lots or parcels. (Ord. 78-5).
92-4.010 Building inspection department.
The "building inspection department" is the
county agency which serves in an advisory
capacity to appropriate advisory agencies and
the board of supervisors concerning topography
and soil conditions and their effect on the design
and development of the subdivision. (Ord. 78-5).
(Contra Costa County 3-15-78)
92-4.011 Civil engineer. "Civil engineer"
means a professional engineer in the branch of
civil engineering holding a valid certificate of
registration issued by the state of California.
(Ord.78-5).
92-4.012 Collector street. "Collector street"
is any street within a subdivision or adjacent
thereto which, because of its location with
reference to other streets or other sources of
traffic, carries or will carry traffic from minor
streets to the major system of arterial streets;
and includes the principal entrance streets for
residential developments and streets for
circulation of traffic within such developments
and serves, or will serve, twenty-four or more
dwelling units. (Ord. 78-5).
92-4.014 County. "County" means the
county of Contra Costa, state of California, of
which the governing body is the board of
supervisors. (Ord. 78-5).
92-4.016 Critically expansive soils.
"Critically expansive soils" or other soil
problems are soil conditions which can cause
damage to improvements, including streets,
structures and buildings. They shall be tested by
acceptable procedures to provide data suitable
f or making adequate designs for the
improvements. (Ord. 78-5).
92-4.018 Cul-de-sac. "Cul-de-sac" is a street
which connects to another street only at one
end, and serves sixteen dwelling units or less,
with a maximum length of seven hundred feet.
(Ord. 78-5).
92-4.020 Dwelling unit. "Dwelling unit" is a
building or a portion thereof, or a mobile home,
designed for residential occupation by one
person or a group of two or more persons living
together as a domestic unit. (Ord. 78-5).
92-4.021 Engineering geologist.
"Engineering geologist" means a professional
geologist in the branch of engineering geology
holding a valid certificate of registration as an
engineering geologist in the state. (Ord. 78-5).
92-4.022 Final map. "Final map" is a map
prepared in accordance with the provisions of
this title and the Subdivision Map Act, which
map is designed to be filed in the office of the
408
recorder of Contra Costa County. (Ord. 78-5).
92-4.024 Flood control district. The
"Contra Costa County water conservation and
flood control district," hereinafter referred to as
the "Flood control district," serves in an
advisory capacity to appropriate advisory
agencies and the board of supervisors relating to
drainage and flood control matters. (Ord. 78-5).
92-4.026 Flood hazard. "Flood hazard" is
possible occurrence of overflow storm water
causing flooding of lands or improvements, or
having sufficient velocity to transport or deposit
debris, to scour the surface soil, to dislodge or
damage buildings, or to cause erosion of the
banks of channels. (Ord. 78-5).
92-4.028 Freeways. "Freeways" are those
highways which are defined in Section 23 oS of
the Streets and Highways Code of the state, and
which, because of their design and location with
reference to the county highway system and
state highway system, are or will be used
primarily for fast, heavy, or dense traffic and for
which right of access from abutting property or
streets along the right-of-way boundaries will be
prohibited or limited. COrd. 78-5).
92-4.030 Frontage. "Frontage" is the width
of the lot or block measured along the property
line adjacent to the street. (Ord. 78-5).
92-4.032 Frontage improvements.
"Frontage improvements" consist of curb,
longitudinal drainage, sidewalks, street lighting,
planting and paving, or any combination
thereof. (Ord. 78-5).
92-4.034 Frontage road. "Frontage road" is
a street or road adjacent to an arterial,
thoroughfare, or freeway, which provides access
to abutting properties and protection from the
through traffic on the more heavily travelled
street. (Ord. 78-5).
92-4.035 Geologic hazard or potentially
hazardous soil conditions. "Geologic hazard or
potentially hazardous soil conditions" includes
but is not limited to conditions such as slope
stability, ground water seepage, erosion hazards,
expansive soil, fault-related hazards, and
liquefaction potential. (Ord. 78-5).
DEFINITIONS
924.024-924.048
92-4.036 Health department. The "health
department" of the county, acting through the
county health officer or his representative,
serves in an advisory capacity to appropriate
advisory agencies and the board of supervisors
concerning matters of sanitation and public
health. (Ord. 78-5).
924.038 Improvement plan. "Improvement
plan" is a plan prepared under the direction of a
civil engineer, registered by the state, showing
the location and construction details of all
improvements required for the subdivision.
(Ord. 78-5).
92-4.040 Improvements. "Improvements"
refers to such street work, drainage facilities,
utilities, and other facilities required to be
installed by the subdivider on the land to be
used for public or private streets, highways,
ways, and easements as a condition precedent to
the approval and acceptance of a final or parcel
map thereof. "Improvements" also refers to
such other specific improvements or types of
improvements, the installation of which, either
by the subdivider, by public agencies, by private
utilities, by any other entity approved by the
local agency or by a combination thereof, is
necessary or convenient to insure conformity to
or implementation of the general plan or any
specific plan adopted pursuant to Division lof
Title 7 of the Government Code. (Ord. 78-5).
92-4.042 Industrial street. "Industrial
street" is a street serving traffic within an
industrial development. (Ord. 78-5).
92-4.044 Inundation. "Inundation" is used
to indicate ponded storm water or storm water
in motion of sufficient depth to damage
property due to the mere presence of water or
the depositing of silt. (Ord. 78-5).
924.046 Lot. "Lot" means that portion of
a parcel of land which is delineated or described
as a single integral unit on the subdivision map.
(Ord. 78-5).
92-4.048 Major drainage channels or
conduits. "Major drainage channels or conduits"
are those channels or conduits which serve a
drainage area of four square miles or more. (Ord.
78-5).
409
(Contra Costa County 3-15-78)
92-4.050-924.082
SUBDIVISIONS
92-4.050 Marginal strip. "Marginal strip" is
the area between the edge of the traveled
roadway or curbline, and the adjacent property
line. COrd. 78-5).
92-4.052 Median. "Median" is the area
separating two roadways within the
right-of-way. COrd. 78-5).
92-4.054 Minor drainage channels or
conduits. "Minor drainage channels or conduits"
are those channels or conduits which serve a
drainage area of one square mile or less. COrd.
78-5).
92-4.056 Minor street. "Minor street" is any
street which serves traffic for not more than
twenty-four dwelling units. COrd. 78-5).
92-4.058 Minor subdivision. "Minor
subdivision" refers to a subdivision of four or
less lots. COrd. 78-5).
92-4.060 Ordinance specifications.
"Ordinance specifications" refers to the
ordinance specifications as approved by
resolution of the board of supervisors, in effect
at the time of filing the parcel map or final map
of the subdivision, three copies of which are
filed with the clerk of the board of supervisors.
COrd. 78-5).
92-4.062 Parcel. "Parcel" is all land which is
contiguous and under one ownership. COrd.
78-5).
92-4.064 Parcel map. "Parcel map" is a map
prepared in accordance with the provisions of
this title and the Subdivision Map Act. COrd.
78-5).
92-4.066 Path. "Path" is a right-of-way
designated for use only by pedestrians and not
intended for use as a way for motor-driven
vehicles. Public paths are rights-of-way offered
for dedication by a final or parcel map or
deeded to and accepted by the governing body
of the county. Private paths are for the benefit
of the owners of lots designated on the final or
parcel map. COrd. 78-5).
92-4.068 Planning department. "Planning
department" is the technical staff of the
planning commission and is one of the divisions
(Contra Costa County 3-15-78)
of county government. "Planning department"
shall also be the clerk of the advisory agency for
purposes of receiving tentative maps and clerk of
the appeals board and legislative body for
purposes of filing appeals as provided in the
Subdivision Map Act. COrd. 78-5).
92-4.070 Ponding of local storm water.
"Ponding of local storm water" is standing
storm water in local depressions. As
distinguished from sheet overflow water, this
water originates on or. in the vicinity of the
subdivision, and due to the condition of the
ground surface, does not reach a drainage
channel or conduit. COrd. 78-5).
92-4.072 Preliminary soil report.
"Preliminary soil report" means a report
prepared by a soil engineer based upon adequate
test borings or excavations in accordance with
the provisions of this title and the Subdivision
Map Act. COrd. 78-5).
92-4.074 Private road. "Private road" means
any parcel of land or nonexclusive easement not
owned by the county, cities, or the state, which
is used or intended to be used for access to a lot
or parcel. COrd. 78-5).
92-4.076 Public street. "Public street" is a
street for which the fee title or right-of-way is
owned by the county, or offered for dedication
to the public and accepted by the county. COrd.
78-5).
92-4.078 Public works department. The
"public works department" is the county
department which serves in an advisory capacity
to appropriate advisory agencies and the board
of supervisors concerning streets, drainage,
engineering, and matters related to the office of
county surveyor. The public works department
is designated as the clerk of the board of
supervisors for purposes of receiving final or
parcel maps. COrd. 78-5).
92-4.080 Secondary drainage channels or
conduits. "Secondary drainage channels or
conduits" are those channels or conduits which
serve a drainage area less than four square miles
and more than one square mile. COrd. 78-5).
92-4.082 Sheet overflow. "Sheet overflow"
indicates water of minor depths either quiescent
410
or flowing at velocities less than those necessary
to produce serious scour. (Ord. 78-5).
92-4.084 Soil engineer. "Soil engineer" is a
civil engineer who is experienced in soil
mechanics, who investigates and reports on the
stability of existing or proposed slopes, who
controls the installation and compaction of fills,
who recommends soil bearing values, and who
provides design criteria and calculations for
special earth structures such as buttress fills.
(Ord. 78-5).
92-4.086 Street. "Street" is a way,
excluding a path or alley, for pedestrian and
vehicular traffic. (Ord. 78-5).
92-4.088 Subdivider. "Subdivider" means a
person, firm, corporation, partnership or
association who proposes to divide, divides or
causes to be divided real property into a
subdivision for himself or for others. (Ord.
78-5).
92-4.090 Subdivision. "Subdivision" means
the division of any improved or unimproved
land, shown on the latest equalized county
assessment roll as a unit or as contiguous units,
for the purpose of sale, lease or financing,
whether immediate or future, except for leases
of agricultural land for agricultural purposes for
the cultivation of food or fiber or the grazing or
pasturing of livestock. Property shall be
considered as contiguous units, even if it is
separated by roads, streets, utility easement or
railroad rights-of-way. "Subdivision" includes a
C()ndominium project, as defined in Section
1350 of the Civil Code or a community
apartment project, as defined in Section 11004
of . the Business and Professions Code. Any
conveyance of land to a governmental agency,
public entity or public utility shall not be
considered a division of land for purposes of
computing the number of lots. "Subdivision"
shall not include a division resulting from a
conveyance of land or interest therein to an
abutting property owner, not involving the
creation of a new building lot or site, and both
parcels or lots will conform in all other respects
to this division and the county zoning
ordinances after such division, provided it is
approved by resolution of the zoning
administrator. (Ord. 78-5).
EXCEPTIONS
92-4.084-92~6.006
92-4.092 Tentative map. "Tentative map"
refers to a map for the purpose of showing the
design of a proposed subdivision and the existing
conditions on and around the proposed
subdivision. (Ord. 78-5).
92-4.094 Thoroughfares. "Thoroughfares"
are those roads of general county importance
which are designated as county thoroughfares,
either existing or proposed, on the county
general plan of roads. (Ord. 78-5).
Chapter 92-6
EXCEPTIONS
Sections:
92-6.002
92-6.004
92-6.006
Advisory agency findings.
Advisory agency conditions.
Modification of requirements.
92-6.002 Advisory agency findings. Subject
to the Subdivision Map Act, the advisory agency
may authorize exceptions to any of the
requirements and regulations set forth in this
title. Application for such exception shall be
made by the subdivider, stating fully the
grounds for the application and the facts relied
upon, and the subdivider shall grant such
additional time as may be required by the
advisory agency for the consideration of the
exception. Before granting any such exception,
the advisory agency shall find:
(1) That there are unusual circumstances or
conditions affecting the property;
(2) That the exception is necessary for the
preservation and enjoyment of a substantial
property right of the applicant;
(3) That the granting of the exception will
not be materially detrimental to the public
welfare or injurious to other property in the
territory in which the property is situated. (Ord.
78-5).
92-6.004 Advisory agency conditions. In
granting any such exception, the advisory
agency shall designate the conditions under
which the exception is granted. (Ord. 78-5).
92-6.006 Modification of requirements. The
standards and requirements of these regulations
may be modified by the planning commission in
the case of a plan or program for a new town; or
411
(Contra Costa County 3-15-78)
92-8.002-92-12.402
SUBDIVISIONS
for a complete community or neighborhood unit
which the planning commission finds provides
adequate public spaces and improvements for
the circulation, recreation, light, air and service
needs of the subdivisions when fully developed
and populated, and which also provides such
other provisions as will assure conformity to and
achievement of the adopted general plan. (Ord.
78-5).
Chapter 92-8
CONFORMANCE
Sections:
92-8.002
92-8.004
Conformance to code.
Compliance with specifica-
tions.
92-8.002 Conformance to code. All
subdivisions subject to the provisions of this title
shall conform to the regulations of the county
code and applicable zoning ordinances. (Ord.
78-5).
92-8.004 Compliance with specifications.
All construction materials, methods, tests, and
workmanship shall comply with the
requirements of the ordinance specifications.
(Ord. 78-5).
Chapter 92-10
ADMINISTRATION AND ENFORCEMENT
Sections:
92-1 0.002
92-10.004
Action by interested persons.
Time limits.
92-10.002 Action by interested persons. (a)
When any provisions of the Subdivision Map Act
or this title requires the execution of any
certificate or affidavit or the performance of any
act by a person in his official capacity, who is
also a subdivider or an agent or employee
thereof, such certificate or affidavit shall be
executed or such act performed by some other
person duly qualified therefor and designated so
to act by the board of supervisors.
(b) All legal forms and notes used in
certificates, acknowledgments, dedications, and
other matters shall be subject to approval by the
county counsel. (Ord. 78-5).
(Contra Costa County 3-15-78)
92-10.004 Time limits. The time limits
specified in this title may be extended by
mutual consent of the parties concerned. (Ord.
78-5).
Chapter 92-12
NOTICES OF VIOLATION AND MERGER
AND CERTIFICATES OF COMPLIANCE
Article 92-12.2 General
Sections:
92-12.202 Purpose.
Article 92-12.4 Notices of Violation and
Merger
Sections:
92-12.402
92-12.404
Knowledge.
Tentative violation
recordation.
92-12.406 Violation hearing notice.
92-12.408 Merger notice recordations.
92-12.410 Merger hearing.
92-12.412 Planning commission hearing.
92-12.414 Board of supervisors hearing.
92-12.416 Violation action.
Article 92-12.6 Certificates of Compliance
Sections:
92-12.602
92-12.604
92-12.606
92-12.608
92-12.610
Application.
Fees.
Decision.
Denial-Action.
Map compliance.
Article 92-12.2
General
92-12.202 Purpose. This chapter
supplements the provisions of Government Code
Sections 66424.2, 66499.34, 66499.35 and
66499.36 (Subdivision Map Act), pertaining to
notices of merger and violation and certificates
of compliance. The development of real
property in the county which has been divided,
or has resulted from a division, in violation of
provisions of the Subdivision Map Act and this
title is contrary to the public health, safety and
welfare. (Ord. 78-5).
Article 92-12.4
Notices of Violation and Merger
92-12.402 Knowledge. Any county official
having knowledge of a possible violation of, or
412
NOTICES OF VIOLATION AND MERGER
the merger of parcels of land pursuant to the
provisions of the Subdivision Map Act or of this
title, shall convey such information to the
director of planning. (Ord. 78-5).
92-12.404 Tentative violation recordation.
If the director of planning, either on his own
initiative or upon investigation of information
received, determines that real property has been
divided in violation of the provisions of the
Subdivision Map Act or of this title, he may
cause a notice of intention to record a notice of
violation, setting forth the information
prescribed by Government Code Section
66499.36, to be recorded with the county
recorder. (Ord. 78-5).
92-12.406 Violation hearing notice. After
recording the notice of intention to record a
notice of violation, and at least sixty calendar
days prior to the recording of a notice of
violation, the director of planning shall advise
the owner of the real property, by mail, of the
intention to record a notice and specifying a
time, date and. place at which the owner may
present evidence to the planning commission
why such notice should not be recorded. The
director shall also mail a copy of the recorded
notice of intention to the owner. (Ord. 78-5).
92-12.408 Merger notice recordations. If
the director of planning, either on his own
initiative or upon investigation of information
received, determines that contiguous parcels of
land have merged pursuant to the provisions of
the Subdivision Map Act or of this title, he may
cause a notice of merger, setting forth the
information prescribed by Government Code
Section 66424.2, to be recorded with the
county recorder. (Ord. 78-5).
92-12.410 Merger hearing. At least thirty
calendar days prior to the recording of a notice
of merger, the director of planning shall advise
the owner of the parcels or units of land to be
affected by the merger, in writing, of the
intention to record a notice of merger and
specifying a time, date and place at which the
owner may present evidenQe to the planning
commission why such notice should not be
recorded. (Ord. 78-5).
92-1 2.412
Upon the
Planning comnnsslOn
noticed hearing the
hearing.
planning
92-12.404-92-12.604
comlllisslon may wholly or partially affirm,
reverse or modify the decision of the director of
planning and his recordation of the notice of
intention to record a notice of violation or
noticed intention to record a notice of merger.
If the planning commission determines that no
violation of, or merger pursuant to the
Subdivision Map Act or this title has occurred, it
may direct the director of planning to issue and
file for recordation a release of the notice of
intention to record a notice of violation or not
to file a notice of merger. (Ord. 78-5).
92-12.414 Board of supervisors hearing.
Any hearing before the board of supervisors of
an appeal from the planning commission as to
the recordation of a notice of intention to
record a notice of violation or proposed
recordation of a notice of merger shall be
conducted in accordance with the provisions
pertaining to such appeals before the
commission. (Ord. 78-5).
92-12.416 Violation action. All
departments, officials, and employees of the
county vested with the duty or authority to
issue permits necessary to develop any real
property shall conform to the provisions of this
title, and shall not wilfully issue any permit or
license for use or construction or any other
purpose in conflict with the provisions of this
title or of the Subdivision Map Act; and any
such permit or license issued in conflict
therewith shall be null and void. Nothing in this
chapter shall be deemed to require the recording
of a notice of violation or merger as a condition
precedent to the enforceability of any of the
provisions of this title. (Ord. 78-5).
Article 92-12.6
Certificates of Compliance
92-12.602 Application. Requests for
issuance of a certificate of compliance shall be
submitted, in legible and readily reproducible
writing, to the planning department, on its
standardized form accompanied by a plot plan
and such supporting information as may be
deemed necessary by the director of planning to
determine compliance herewith. (Ord. 78-5).
92-12.604 Fees. Upon requesting issuance
of a certificate of compliance, the applicant shall
deposit with the director of planning for
413
(Contra Costa County 3-15-78)
92-12.606-94-2.204
SUBDIVISIONS
payment to the treasurer of the county, cash or
check in a sufficient sum to cover the fee for
issuance and recording of the certificate of
compliance. The schedule of fees will be that
recommended by the director of planning and
adopted by the board of supervisors from time
to time by resolution. (Ord. 78-5).
92-12.606 Decision. Within fifteen calendar
days after filing of the request, the director of
planning shall review the request and determine
whether the property or the division thereof
complies with the provisions of the Subdivision
Map Act and this title, and shall determine
whether a certificate of compliance should be
issued or denied or a conditional certificate of
compliance issued and recorded. Any certificate
of compliance or conditional certificate of
compliance issued shall set forth the information
prescribed by Government Code Section
66499.35 and shall be filed for record with the
county recorder by the director of planning. If
the director of planning determines that such
property could be brought into compliance by
fulfillment of certain conditions, he shall so
state in his decision of denial or the conditional
certificate of compliance issued and recorded.
(Ord. 78-5).
92-12.608 Denial - Action. Upon denial of
any request for a certificate of compliance by
the planning director, the applicant may still
apply to the appropriate division of the county's
planning agency in accordance with the
provisions of this title for approval of a final or
parcel map for his property. (Ord. 78-5).
92-12.610 Map compliance. A recorded
final map or parcel map shall constitute a
certificate of compliance with respect to the
parcel of real property described therein. (Ord.
78-5).
Division 94
MAPS
Chapters:
94-2 Tentative Maps
94-4 Final Maps and Parcel Maps
(Contra Costa County 3-15-78)
Chapter 94-2
TENTATIVE MAPS
Article 94-2.2
Sections:
94-2.202
94-2.204
94-2.206
General
Tentative map.
Information required.
Data to accompany tentative
map.
Article 94-2.4 Design Objectives
(Reserved)
Article 94-2.6 Filing
Sections:
94-2.602
94-2.604
General.
Referral to interested
agencies.
Subdivision conference.
Requests for exceptions and
variances.
94-2.610 Expiration-Extension.
Article 94-2.8 Action by Advisory Agency
Sections:
94-2.802
94-2.804
94-2.606
94-2.608
Approval of tentative map.
Approval of exception and
variance applications.
94-2.806 Findings.
Article 94-2.10 Appeal
Sections:
94-2.1002 Appeal-Procedure-Fee.
Article 94-2.2
General
94-2.202 Tentative map. A tentative map
shall be submitted for approval preceding the
submission of the final map or parcel map for a
subdivision. If all of the following conditions are
met by the application and tentative map, the
zoning administrator (or staff) may approve the
tentative map:
(1) No more than two lots are proposed to be
created and each of such lots cannot be further
divided under the existing zoning classifications;
(2) Both lots, after division, will front on a
public or dedicated street;
(3) Dedication is not required for widening,
extending or creating a street;
(4) The lots cre.ated will, in all other respects,
comply with legal requirements. (Ord. 78-5).
94-2.204 Information required. The
tentative map shall be clearly and legibly drawn
on one sheet, unless prior written approval of
414
the planning department is given for more than
one sheet, and shall contain the following
information:
(1) The title, which shall contain the
slJ.bdivision number assigned by the planning
department and the type of subdivision, and
may contain such name as may be selected by
the subdivider;
(2) Names and addresses for:
(A) Legal owner of property,
(B) Subdivider, and
(C) Person or persons who prepared the map;
(3) A topographical map accurately showing
contours and other features of the existing
. terrain within the subdivision, existing drainage
channels, roads, culverts, overhead and
underground utility lines which may affect the
design of the subdivision, wells and springs,
major structures, irrigation ditches, utility poles,
and other improvements in their correct
location. Elevations shall be in accord with U.S.
Geological Survey (1929 Sea Level Datum). The
map shall be drawn to an engineer's scale large
enough to show all information clearly. The
parcel shall be oriented on the map sheet such
that the north arrow shall point toward the top
of the sheet. Contour interval shall not be
greater than two feet if the ground slope is less
than ten percent nor larger than five feet for
ground slopes greater t.han ten percent; and at
such intervals that the contour lines will not be
spread more than one hundred fifty feet (ground
distance) apart. The map shall show:
(A) The outline of any geologic or
potentially hazardous soil condition, and areas
subject to inundation or ponding,
(B) The edges of pavement of existing streets,
private roads, driveways and other paved areas,
(C) Location of existing property lines and
approximate boundaries of existing easements
within the subdivision, with the names of the
owners of record, of easements, exclusions, and
the properties abutting the subdivision,
(D) The proposed lot and street layout with
scaled dimensions of each lot. Lot dimensions
shall conform to the requirements of Division 82
as to size and dimensions.
Lots, where not served by public sewers, shall
not be smaller in area than the health
department shall approve for septic tanks and
drain field installation.
Side lot lines shall be substantially at right
angles or radial to street lines.
Each lot shall be identified by (a) lot
TENTATIVE MAPS
94-2.206
numbers, beginning with number "1" in each
subdivision requiring a final map; or (b) lot
letters, beginning with letter "A" in each
subdivision requiring a parcel map. Numbers or
letters shall be consecutive with no omissions or
duplications.
The subdivider shall show the area of each lot
on the tentative map. The area shall be exclusive
of the portion lying in the street,
(E) The location of all proposed easements
for drainage and access,
(F) The location and species of all trees or, if
massed, the outline of the tree mass. Trunk
diameter of all trees six inches in diameter and
over shall be noted,
(G) Street names, width of streets and
easements, approximate grade, and radius of
curves along property lines of each street,
(H) Typical geometric sections for streets
showing pavement width, curbs, sidewalks,
grading in margin strips, slopes of cuts and fills,
and other construction proposed or applicable,
(1) Areas to be used for public purposes,
(J) Location, approximate grade, direction of
flow and type of facility of existing drainage
channels and storm drains,
(K) A vicinity map showing roads, adjoining
subdivisions, towns, creeks, railroads, and other
data sufficient to locate the proposed
subdivision and show its relation to community
development,
(L) North arrow, scales for maps and contour
in terval,
(M) Boundary lines of existing land use zones
shall be delineated,
(N) Statement or plan as to proposed plans
for draining the area subject to flooding or
inundation by waters flowing into or from the
subdivision,
(0) If to be developed in increments, the
map shall indicate the approximate sequence of
development by units. (Ord. 78-5).
94-2.206 Data to accompany tentative map.
The tentative map shall be accompanied by the
following data, which shall be submitted at the
time the map is filed with the planning
department:
(1) A written statement of general
information which shall contain the following
information:
(A) Existing use or uses of property,
(B) A description of the proposed
subdivision, including the number of lots, their
415
(Contra Costa County 5-81)
94-2..902-94-2.604
SUBDIVISIONS
average and minimum SIze, and nature of
development,
(C) Source of water supply,
(D) The method of sewage disposal proposed,
(E) Other improvements proposed;
(2) Two copies of a preliminary geologic
and/or soils reconnaissance report, as required
by the planning departmen t. Each report of a
geological investigation shall be prepared and
signed by an engineering geologist. Each report
of a soil investigation shall be prepared and
signed by a soil engineer. The required report
gJ10uld be based on the latest grading plan for
the subject development and shall reference the
date of that grading plan. The format for
required reports shall generally follow the
guidelines for geologic/seismic reports required
by the planning department. All reports shall
include the following:
(A) A detailed geologic map showing the
location and extent of any geologic hazard or
potentially hazardous soil condition within or
immediately adjoining the subject property
which warrants special management and/or
futher evaluation,
(B) Recommendations outlining an
exploration program to fully define and
delineate any geologic hazard or potentially
hazardous soil condition, and to accurately
identify developable areas,
(C) Conclusions regarding the effect of any
geologic hazard or potentially hazardous soil
condition within or immediately adjoining the
project site on the design of the proposed
subdivision,
(D) Recommendations for redesign of the
subdivision and/or recommendations for
construction procedures to mitigate potentially
hazardous conditions, if warranted.
The requirement for a preliminary geologic or
soils reconnaissance report may be waived if the
planning department determines that there are
no apparen t hazardous geologic or soils
conditions within, adjacent to, or affecting the
subdivision, based upon the geotechnical
knowledge the department possesses.
For subdivisions of four lots or less there is no
mandatory requirement for a preliminary
geologic or soils reconnaissance report. Such a
report may be req uired if the planning
department determines that there are apparent
hazardous geologic or soils conditions within,
adjacent to, or affecting the subdivision.
An engineering geologist, within or retained
(Contra Costa County 5-81)
by Contra Costa County, shall evaluate the
reports required herein and advise the body
having jurisdiction and authority. Supplemental
reports and data may be required if deemed
necessary;
(3) When a tentative map is filed on an area
which is a part of a larger single ownership
which may be subdivided in the future, the
planning department may require a development
plan showing the proposed future development;
(4) Four copies of a preliminary grading and
site development plan, including drainage, when
required by the planning department. (Ord.
78-5).
Article 94-2.4
Design Objectives
(Reserved)
Article 94-2.6
Filing
94-2.602 General. For subdivisions of five
lots or more, the subdivider shall file with the
planning department twenty-five prints of the
tentative map of the subdivision; for subdivi-
sions of four lots or less, the subdivider shall
file twelve prints. The filing fee specified in
Article 26-2.28 shall accompany the tentative
map. The time of filing a tentative map and the
required accompanying statement is when the
planning department accepts them as complete.
Not later than thirty calendar days after receiv-
ing the tentative map, the planning department
shall examine it, and shall accept it for filing if
it appears to substantially comply in form and
content to the requirements of this chapter and
code or shall return it to the subdivider with a
writt~n statement of the reasons. (Ords. 80-87 ~
3, 78-5: see Gov.c. ~ 65943).
94-2.604 Referral to interested agencies.
The planning department, within five calendar
days after the filing of the map, shall forward
copies to the public works department, the
health officer, flood control district, building
inspection department, the chief engineer of a
sanitary district if the subdivision lies within a
sanitary district, the chief of the local fire
district, the serving school district, the utility
companies serving the area, the State
Department of Transportation, and other
interested state and regional agencies. Each of
the agencies, within fifteen calendar days after
416
receipt of the map, may forward to the planning
department its findings and recommendations
thereon. (Ord. 78-5).
94-2.606 Subdivision conference. Within
twenty-five working days after the filing of a
tentative map in compliance with Section
94-2.602, the planning department may hold a
subdivision conference on the tentative map.
Written notice of such conference shall be given
to all interested agencies. At such conference the
recommendations of the planning department
and the other affected agencies may be
considered and correlated. Following the
conference, a written report of the
recommendations shall be presented to the
appropriate advisory agency prior to final action
of the advisory agency. The written report will
be served on the subdivider at least three
calendar days prior to any final action of the
advi~ory agency. A revised tentative map may be
submitted at least one week prior to any final
action of the advisory agency. (Ord. 78-5).
94-2.608 Requests for exceptions and
variances.- The subdivider may submit a written
request for exceptions as to street
improvements, widths, grades, and other
subdivision matters or variances from zoning
requirements, subject to the approval of the
advisory agency. (Ord. 78-5).
94-2.610 Expiration - Extension. The ap-
proval or conditional approval of a tentative
map expires thirty months after its original ap-
proval. This expiration terminates all proceed-
ings, and no fmal map or parcel map of all or
any portion of the real property included within
the tentative map shall be filed without first pro-
cessing a new tentative map. Upon application
by the subdivider, filed before this expiration
date, the advisory agency which originally ap-
proved the tentative map may extend this
expiration date for a period or periods totaling
not more than twenty-four months after the
original expiration date. (Ords. 81-39 S 1,
78-5; S 94-4.408: prior code S 8430 (c): Ord.
67-19 Gov. C. SS 66452.6,66463.5).
Article 94-2.8
Action by Advisory Agency
94-2.802 Approval of tentative map. The
advisory agency, pursuant to Section 26-2.2212
TENTATIVE MAPS
94-2.606-94-2.1002
of this code, shall approve, conditionally
approve, or disapprove the map, and shall report
such action in writing direct to the subdivider,
the public works department and such other
agencies as requested. In the case of a proposed
tentative map for a minor subdivision the
advisory agency shall hear it within fifty
working days after filing it and thereafter render
a decision within fifteen calendar days unless
these time limits have been extended by mutual
consent of the parties concerned. In the event
the map is disapproved, the advisory agency's
report shall set forth the basis of its action and
identify the requirements or conditions which
have not been met or performed. (Ord. 78-5).
94-2.804 Approval of exception and
variance applications. The advisory agency shall
also approve or disapprove the application of the
subdivider for exceptions and variances. (Ord.
78-5).
94-2.806 Findings. The advisory agency
shall not approve a tentative map unless it shall
find that the proposed subdivision, together
with the provisions for its design and
improvement, is consistent with the applicable
general and specific plans required by law. When
approving the tentative map for a minor
subdivision, the advisory agency shall make
fmdings as required concerning the fulfillment
of construction requirements. (Ord. 78-5).
Article 94-2.10
Appeal
94-2.1002 Appeal- Procedure - Fee. If
the subdivider or any interested person, as
provided in Section 26-2.2404 of this code, is
dissatisfied with the action of the advisory
agency with respect to the tentative map, or
. with the improvements required by the advisory
agency, he may appeal, as provided in Section
26-2.2404 of this code, within fifteen calendar
days after such action to the appropriate
appellate division as provided in Section
26-2.2406 of this code pursuant to Article
26-2.24, paying the fee required under Article
25-2.28. (Ord. 78-5).
417
(Contra Costa County 11-81)
94-4.202-94-4.208
SUBDIVISIONS
FINAL MAPS AND PARCEL MAPS
Chapter 94-4
Article 94-4.2 Form and Contents
Sections:
94-4.202
Approval of supplementary
documents-Final maps and
parcel maps.
Subdivision agreement.
Cash deposit andperformarice
security.
Payment security.
Fee payment evidence.
Deed for easements or
rights-of-way.
Joint use of right-of-way
agreemen t.
Supplemen tary documen ts-
Final maps only.
94-4.418 Tax letter-Security.
94-4.420 Soil report.
Article 94-4.6 Checking
Sections:
94-4.602
94-4.604
94-4.606
94-4.204
94-4.206
94-4.208
94-4.210
94-4.212
94-4.214
94-4.216
94-4.218
94-4.220
94-4.222
94-4.224
94-4.226
Article 94-4.4
Sections:
94-4.402
94-4.404
94-4.406
94-4.408
94-4.410
94-4.412
94-4.414
94-4.416
Final and parcel maps-
General.
Boundary designation.
Lot designation.
Title sheet.
Affidavits, certificates,
dedications, etc.
Scale, north point and basis
of bearings.
Easements.
Linear, angula.r and radial
data.
Adjoining corners of
adjoining subdivisions.
City boundaries.
Monument location.
Soil report certificate.
Printing or lettering.
Supple men tary Documents
Prints required and fees.
Error of closure in traverse.
Public works department
action.
Article 94-4.8 Approval
Sections:
94-4.802
94-4.804
94-4.806
94-4.808
Approval and flling of maps.
Time limit for recording.
Evidence of title.
Filing by units.
(C6ntra Costa County 11-81)
Article 94-4.2
Form and Contents
94-4.202 Final and parcel maps - General.
A final map shall be submitted for approval for
all subdivisions creating five or more lots, five or
more condominiums as defined in Section 783
of the Civil Code, or a community apartment
project containing five or more lots, except as
provided in Government Code Section 66426.
A parcel map shall be submitted for a.pproval
for all subdivisions as to which a final map is not
otherwise required by this title, . except those
created by short-term leases (terminable by
either party on not more than thirty days'
notice in writing) of a portion of the operating
right-of-way of a railroad corporation defined as
such by Section 230 of the Public Utilities Code,
unless a showing is made in individual cases,
upon substantial evidence, that public policy
necessitates such a parcel map.
The form and contents of the final map or
parcel map shall be in conformance with the
Subdivision Map Act and this title. (Ord. 78-5).
94-4.204 Boundary designation. The
boundary of the subdivision shall be designated
by a solid black line one-sixteenth inch wide.
(Ord. 78-5).
94-4.206 Lot designation. On final maps,
each lot shall be numbered, beginning with
number "1" and continuing consecutively with
no omissions or duplications.
On parcel maps, each lot shall be lettered,
beginning with letter "A" and continuing
consecutively with no omissions or duplications.
All figures shall be conspicuous and solid.
Circles or other designs shall not be drawn
around the lot numbers or letters. Each lot must
be shown entirely on one sheet of the map.
Dimensions of lots shall be given as the net
dimensions to the boundaries of adjoining
streets. (Ord. 78-5).
94-4.208 Title sheet. The title sheet shall
contain the subdivision number, conspicuously
placed at the top of the sheet, and the location
of the property being subdivided with reference
to maps which have been previously recorded, or
by reference to the plat of a United States
survey. A subdivision name may be added below
the subdivision number. The subdivision number
shall be larger print and dominant to any name
418
FINAL MAPS AND PARCEL MAPS
title. In case the property included within the
subdivision lies wholly in unincorporated
territory, the following words shall appear in the
titles: "In the County of Contra Costa." If
partly in unincorporated territory and partly
within an incorporated city, the following words
shall be used: "Lying within the County of
Contra Costa and partly within the City of
. . . . . . . . . . . ." (Ord. 78-5).
94-4.210 Affidavits, certificates,
dedications, etc. Affidavits, certificates,
acknowledgments, endorsements, acceptances of
dedication, and the notarial seals required by
law and this title shall appear only once on the
title sheet. The above certificates, etc., may be
printed thereon with opaque ink and by
photographic reproduction. Black ink shall be
used for all signatures and seals. If more than
three sheets are used, a key diagram shall be
included on the first sheet. Where recommended
by the public works department and approved
by the board of supervisors, the requirements
for owner's certificates on a parcel map may be
waived. (Ord. 78-5).
94-4.212 Scale, north point and basis of
bearing;. There must appear on each map sheet
the scale, the north point, and the basis of
bearings. The scale shall be forty feet, fifty feet,
or sixty feet to the inch or as approved by the
public works department. The basis of bearings
shall be that approved by the public works
department and the map shall show the equation
of bearing to the true north. All bearings shall be
based on the California Coordinate System,
Zone III. (Ord. 78-5).
94-4.214 Easements. (a) Easements for
roads or streets, paths, storm water drainage,
sanitary sewers, or other public use as may be
required by a public agency, shall be dedicated
to the public for future acceptance by a public
agency, and the use shall be specified on the
map.
(b) Easements for an existing or proposed
utility installation for the use of a private or
nongovernmental agency shall not be shown on
the map unless there is a recorded conveyance to
such individual or corporation, except as
provided in subsection (d) of this section.
(c) All easements of record shall be shown on
the map, together with the name of the grantee
and sufficient recording data to identify the
94-4.21 0~94-4.226
conveyance, e.g., recorder's serial number and
date, or book and page of official records.
(d) Easements not disclosed by the records in
the office of the county recorder and found by
the surveyor or engineer to be existing, shall be
specifically designated on the map, identifying
the apparent dominant tenements for which the
easement was created.
(e) The sidelines of all easements of record
shall be shown by dashed lines on the map with
the widths, lengths and bearings of record. (Ord.
78-5).
94-4.216 Linear, angular and radial data.
Sufficient linear, angular, and radial data shall be
shown to determine the bearings and lengths of
the boundary lines of the subdivision and of the
boundary lines of every lot and parcel which is a
part thereof. Length, radius, and total central
angle or radial bearings of all curves shall be
shown. (Ord. 78-5).
94-4.218 Adjoining corners of adjoining
subdivisions. The adjoining corners of all
adjoining subdivisions shall be identified by
subdivision number, or name when not
identified by official number, and reference to
the book and page of the filed map showing
such subdivision; and if no such subdivision is
adjacent, then by the name of the owner and
reference to the recorded deed by book and
page number for the last recorded owner of such
adjacent property. (Ord. 78-5).
94-4.220 City boundaries. City boundaries
which cross or join the subdivision shall be
clearly designated. (Ord. 78-5).
94-4.222 Monument location. The location
and description of all existing and proposed
monuments shall be shown. Adequacy of
monumentation shall be determined by the
public works department. (Ord. 78-5).
94-4.224 Soil report certificate. When a soil
report has been prepared, the certificate
required by Section 94-4.420 shall be noted on
the map. (Ord. 78-5).
94-4.226 Printing or lettering. All printing
or lettering on the map shall be of
one-eighth-inch minimum height and of such
shape and weight as to be readily legible on
prints and other reproductions made from the
419
(Contra Costa County 3-15-78)
94-4.402-94-4.412
SUBDIVISIONS
original drawings. No ditto marks shall be used
in the dimensions and data shown on the map.
(Ord. 78-5).
Article 94-4.4
Supple men tary Documen ts
94-4.402 Approval of supplementary
documents - Final maps and parcel maps. The
final map or parcel map shall be accompaIlied by
the documents designated in Sections 94-4.404
through 94-4.414, which shall be approved by
proper authorities before the final map or parcel
map is approved. A soil report conforming to
the requirements of Section 94-4.420 of this
title may be required by the advisory agency as a
condition of approval of the tentative map for a
subdivision of four lots or less. (Ord. 78-5).
94-4.404 Subdivision agreement. A
subdivision agreement shall be executed by the
subdivider or his agent guaranteeing the
completion of construction of improvements
required by the county code and reviewed plans
within a specified time, and payment therefor.
The subdivision agreement shall guarantee that
all street and storm drain improvements and
equipment deemed necessary for the use of such
subdivision or the proper drainage thereof and
including, but not limited to, street surfacing,
sidewalk, curbs, culverts, bridges, and storm
drains shall be free from defects of material or
workmanship and shall perform satisfactorily for
a period of at least one year from and after the
board of supervisors declares such improvements
are complete.
The subdivider shall agree to repair any defect
in any such improvement and to replace any
defective improvement which cannot be repaired
and which occurs within the one-year period, at
his own expense.
The one-year guarantee period shall not apply
to the improvement of a private road, which is
to remain a private road. (Ord. 78-5).
94-4.406 Cash deposit and performance
security. A cash deposit, equal to one percent of
the estimated cost of construction of the
improvements, but not less than one thousand
dollars, shall be required, together with such
additional security in the form of cash deposit,
acceptable surety bond, or acceptable
instrument of credit equivalent to the estimated
cost of ,he improvement or the act to be
(Contra Costa County 3-15-78)
performed, minus the cash deposit, guaranteeing
performance of all work and repair of any defect
in the improvements which occurs within one
year of the acceptance of the work as complete,
as set forth in the subdivision agreement. When
there are no public improvements involved and
the total cost of the private road improvements
is less than one thousand dollars, the agreement
shall be secured by a cash deposit in the full
amount of the estimated cost. Upon acceptance
of the work as complete, a new acceptable
security guaranteeing the repair of any defective
work may be substituted for the performance
security. The new security shall include the cash
deposit described above and shall be not less
than said cash deposit or fifteen percent of the
estimated cost of the construction of the
improvements, whichever amount is greater, and
shall be retained for the one-year guarantee
period. (Ord. 78-5).
94-4.408 Payment security. Security in the
form of cash deposit, acceptable surety bond, or
acceptable instrument of credit equivalent to
fifty percent of the estimated cost of the
improvement or the performance of the required
act, shall be required to secure payment to the
contractor, his subcontractors and to persons
furnishing labor, materials or equipment to them
for the improvement or the performance of the
required act. Six months after the acceptance of
the work as complete, said payment security
may be reduced to an amount not less than the
total of all claims on which an action has been
filed and notice thereof given in writing to the
legislative body; and if no such actions have
been filed, the security may be released in full.
(Ord. 78-5).
94-4.410 Fee payment evidence. Evidence
of cash payment of all fees required for the
checking and filing of maps, review of the
improvement plans, inspection of the
construction, park dedication fees, road, bridge
or storm drainage improvement area fees, fire
hydrant rental fees and lighting fees shall be
required. (Ord. 78-5).
94-4.412 Deed for easements or
rights-of-way. Easements or rights-of-way
required for road or drainage purposes which
have not been dedicated on the final map or
parcel map shall be deeded. Written evidence
acceptable to the county in the form of rights of
420
FINAL MAPS
94-4.418
deve10pmen t of the subdivision. (Ord. 67-19 ~ 1
(part), 1967: prior code ~ 8429(g)).
94-4.418 Supplementary document
Engineer's statement. A statement by the
420-1
(Contra Costa County 9-15-73)
FINAL MAPS AND PARCEL MAPS
entry or permanent easements across private
property outside of the subdivision permitting
or granting access to perform necessary
construction . work and permitting the
maintenance of the facility shall be required.
COrd. 78-5).
944.414 Joint use of right-of-way
agreement. Agreements, acceptable to the
county, executed by all owners of all utility and
other easements within proposed rights-of-way,
consenting to the dedication of the road or
consenting to the joint use of the right-of-way,
as may be required by the county for the public
use and convenience of the road, shall be
required. COrd. 78-5).
94-4.416 Supple men tary documen 18
Final maps only. In addition to those documents
specified in Sections 944.402 through 944.414,
the final map shall be accompanied by the
documents designated in Sections 944.418 and
94-4.420, which shall be approved by
appropriate authorities before the final map is
approved. COrd. 78-5).
94-4.418 Tax letter - Security. A letter
from the tax collector showing that all payable
taxes and special assessments have been paid and
giving his estimate of taxes and assessments not
yet payable and, as applicable, an acceptable
surety bond or acceptable instrument of credit
for their payment (where required by
Government Code Section 66492) shall be filed
with the clerk of the board of supervisors. COrd.
78-5).
94-4.420 Soil report. Two copies of a
preliminary soil investigation report to the
building inspection department shall be required
unless waived because the building inspection
department has determined that, due to the
knowledge it has of the soil qualities within the
subdivision, no preliminary analysis is necessary.
The report shall indicate the presence of any
critically expansive soils or any other soil
problems which, if not corrected, may lead to
defects in structures, buildings or other
improvements. If the report indicates such soil
problems, it shall further report on an
investigation of each lot of the subdivision,
including recommended corrective action which
is likely to prevent structural damage to each
building, structure, or improvement to be
constructed.
944.414-944.602
It shall also report on the suitability of the
earth material for construction of stable
embankments and excavation slopes, including
those necessary for any artificial or natural
drainage channel; recommendations for
construction procedures to obtain required
stability; maximum design velocities for any
natural or artificial drainage channel; and any
other geologic features, slides, unstable soil
conditions, springs and seepage conditions,
erosion control planting, or drainage facilities to
enable proper development of the subdivision.
The "preliminary soil report" shall be
prepared on eight and one-half inch by
eleven-inch paper of durable quality and any
map or document which accompanies the report
shall be of a convenient size and scale to fold to
eight and one-half inches by eleven inches.
If the building inspector, or his designated
representative, determines that the report is
complete and that the recommended action and
procedures contained in the report are likely to
prevent structural damage to buildings,
structures or improvements to be constructed
within the subdivision, he shall approve the
report and shall certify on the final map or
parcel map that a preliminary soil investigation
report has been prepared, together with the date
of the report and the name of the soil engineer
preparing the report and shall state that the
report has been approved and is on file in the
building inspection department. The
recommended actions and procedures contained
in the report shall become a condition of
approval and shall be incorporated in the
development of the subdivision. COrd. 78-5).
Article 94-4.6
Checking
94-4.602 Prints required and fees. The
subdivider shall submit three sets of prints of the
map and certificate sheet to the public works
department for checking purposes before the
certificates on the original tracings are executed.
The preliminary prints shall be accompanied by
a current preliminary title report, furnished by
the applicant and acceptable to the public works
department; by traverse sheets prepared by the
subdivider's engineer, showing the mathematical
closure of the subdivisions's exterior boundaries;
and by a checking fee as established and adopted
by the board of supervisors from time to time
by resolution. COrd. 78-5).
421
(Contra Costa County 3-15-78)
94-4.604-94-4.808
SUBDIVISIONS
94-4.604 Error of closure in traverse. The
error of closure in traverse around the
subdivision and around the interior lots or
blocks shall not exceed one part in twenty
thousand. (Ord. 78-5).
94-4.606 Public works department action.
The public works department, within ten
working days, shall note the required
corrections, if any, on one set of the preliminary
prints and return them to the engineer or
surveyor for revision of the maps. (Ord. 78-5).
Article 94-4.8
Approval
94-4.802 Approval and filing of maps. The
original tracing and one set of prints of the
revised map prepared in accordance with the
Subdivision Map Act and this title and corrected
to its final form, and signed by all parties
required by the Subdivision Map Act and this
title to execute the certificates on the map,
together with all supplementary documents and
fees, shall be presented to the public works
department for filing. If the map, all documents
and fees are determined to be satisfactory, the
public works department, within ten calendar
days following receipt, shall present them to the
board of supervisors for approval. The board of
supervisors, within a period of ten calendar days
after the filing of the final map or parcel map
with the public works department, or at its next
regular meeting after the meeting at which it
receives the map, whichever is later, shall
approve the map if it conforms to all
requirements of law and this title. The board
shall not approve the map unless it shall find
that the proposed subdivision, together with the
provisions for its design and improvement, is
consistent with the applicable general and
specific plans required by law. In the event the
final or parcel map is disapproved, the board
shall set forth the basis of its action and identify
the requirements or conditions which have not
been met or performed. At the time of its
actions thereon, the board shall accept, accept
subject to improvements, or reject any or all
offers of dedication of streets and other
easements.
On approval of any final map or parcel map,
the clerk of the board of supervisors shall release
the map to the subdivider's title company for
ultimate transmittal to, and filing with the
(Contra Costa County 3-15-78)
county recorder. In addition to the original
tracings, the subdivider's title company shall
provide the county recorder with a blue line
print on linen of each sheet. (Ord. 78-5).
94-4.804 Time limit for recording. The time
limit for recording the final map or parcel map
shall be twelve months, commencing with the
approval of the tentative map by the advisory
agency, unless an extension of time is granted
pursuant to Section 94-2.610. (Or d. 78-5).
94-4.806 Evidence of title. The subdivider
shall present to the recorder the evidence of title
required by the Subdivision Map Act and this
title. (Ord. 78-5).
94-4.808 Filing by units.-. The subdivider
may elect to file a final map for all or part of the
approved tentative map in the sequence of units
approved by the planning commission. Each
final map which constitutes a part, or unit, of
the approved tentative map shall have a separate
subdivision number. The subdivision agreement
to be executed by the subdivider shall provide
for the construction of such improvements as
may be required to constitute a logical and
orderly development of the whole subdivision
by units. (Ord. 78-5).
Division 96
IMPROVEMENTS
Chapters:
96- 2 Plans
96-4 Construction Work
96-6 Street Lighting
96-8 Side" alks and Paths
96-10 Underground Utilities
96-12 Curbs and Gutters
96-14 Miscellaneous
422
Improvement plan review.
Corrected plans.
Review of revisions.
Review prerequisite for final
map or parcel map approval.
Supplementary plans and
documents.
Article 96-2.6 Appeal
Sections:
96-2.602
Article 96-2.2
Sections:
96-2.202
96-2.204
96-2.206
96-2.208
Article 96-2.4
Article 96-2.4
Sections:
96-2.402
96-2.404
96-2.406
96-2.408
96-2.410
Chapter 96-2
PLANS
Form and Contents
General.
Contents.
Sewer plans.
Plans and profiles.
Action by Public Works
Departmen t
Appeal procedure.
Article 96-2.2
Form and Contents
96-2.202 General. Following approval of
the tentative map, the subdivider shall prepare
and submit to the public works department for
review, complete construction plans for the
improvements required by this title. (Ord. 78-5).
96- 2.204 Con ten ts. The plans shall be
prepared under the direction of a registered civil
engineer, licensed by the state, and shall show
the complete plans, profiles and details for all
street work, drainage channels and structures,
retaining walls or other improvements to
support cut slopes and embankments, bridges,
the location of underground utilities which may
control the location and elevation of storm
drains and culverts, the location of fire hydrants,
street monuments, curbs, gutters, and sidewalks,
fences required by this title, gates, driveways, if
constructed in conjunction with subdivision
improvements, structures and drainage facilities
to control slides, location of street lights,
sanitary sewers and other improvements which
may be required to complete the work. If the
plans include three or more sheets, a key map
showing the streets, lots, street names, storm
drains, the area covered by each sheet of the
plans, and a list showing the sheet numbers of
PLANS
96-2.202-96-2.404
the plans and their contents shall be included on
the first sheet of the plans. (Ord. 78-5).
96-2.206 Sewer plans. If the sanitary sewers
are not under county jurisdiction, the review of
the improvement plans shall not be construed as
approval of the sewer plans. (Ord. 78-5).
96-2.208 Plans and profiles. The plans and
profiles shall be submitted on uniform size
sheets, twenty-four inches by thirty-six inches
overall dimension. A border shall be provided
with one and one-half inches along the
twenty-four-inch dimension on the left-hand
side of the sheet, and a one-half inch border on
the other three sides. The sheets shall be
provided with a suitable title block in the lower
right-hand corner. The scales for various
portions of the drawings and the north point
where applicable, shall be shown on all sheets.
Reference may be made to county standard
details in lieu of duplicating the drawings
thereon. The quality of the drawings shall be
such that high contrast microfilm reproductions
may be made from them. All printing or
lettering on the improvement plans shall be of
one-eighth-inch minimum height and of such
shape and weight as to be readily legible on
prints and microfilm reproductions. (Ord. 78-5).
Article 96-2.4
Action by Public Works Department
96-2.402 Improvement plan review. The
subdivider shall submit four sets of improvement
plans and a preliminary cost estimate to the
public works department for review together
with a review fee as established and adopted by
the board of supervisors from time to time by
resolution. Upon completion of this review, one
set of the preliminary plans together with the
required revisions, if any indicated thereon, and
a written statement will be returned to the
subdivider's engineer. (Ord. 78-5).
96-2.404 Corrected plans. Six sets of the
corrected plans and any additional sets
requested by the public works department for
distribution to interested public agencies and
utilities shall then be submitted to the public
works department. One set of the plans reviewed
by the public works department with the review
and date noted thereon shall be returned to the
subdivider's engineer. (Ord. 78-5).
423
(Contra Costa County 3-15-78)
96-2.406-964.404
SUBDIVISIONS
96-2.406 Review of revisions. Requests by
the subdivider for review of revisions appearing
necessary or desirable during construction shall
be submitted to the public works department
and processed in accordance with Sections
96-2.402 and 96-2.404 of this division. (Ord.
78-5).
96-2.408 Review prerequisite for final map
or parcel map approval. The completion of the
review of the improvement plans by the public
works department, when improvements are
required, shall be a condition precedent to the
approval of the final map or parcel map for the
subdivision by the board of supervisors. (Ord.
78-5).
96-2.410 Supplementary plans and
documents. Supplementary plans and
documents shall include grading plans,
hydrology, hydraulic computations and
structural computations as required. (Ord. 78-5).
Article 96-2.6
Appeal
96-2.602 Appeal procedure. Appeal to the
board of supervisors shall be made within fifteen
working days on any conditions stated by the
public works department relative to the
improvement plans and not agreed to by the
subdivider. (Ord. 78-5).
Article 96-4.2
Sections:
964.202
964.204
964.206
964.208
Article 96-4.4
Sections:
96-4.402
964.404
Article 96-4.6
Sections:
96-4.602
96-4.604
Chapter 96-4
CONSTRUCTION WORK
Inspection
General.
Right of entry.
Work prior to inspection.
Fee.
Completion
General.
Penalty for delay in com-
pletion.
Acceptance
Recommendation by public
works department.
Resolution of acceptance.
(Contra Costa County 3-15-78)
Article 96-4.2
Inspection
96-4.202 General. All work done in
constructing the improvements and all materials
furnished shall be subject to the inspection of
the public works department. (Ord. 78-5).
')
96-4.204 Right of entry. The public works
department, the building inspection department
and the flood control district shall have access to
the work at aU times during its construction and
shall be furnished with every reasonable facility
for ascertaining that the materials used and the
workmanship are in accordance with the
requirements of this title. (Ord. 78-5).
96-4.206 Work prior to inspection. If any of
the work on improvements is done by the
subdivider prior to the completion of review of
the improvement plans and payment of the
inspection fee, or prior to the inspection of the
improvements as required by the public works
department, such work may be rejected and
shall be deemed to have been done at the risk
and peril of the subdivider. (Ord. 78-5).
96-4.208 Fee. Prior to commencement of
construction, the subdivider shall pay to the
public works department the cost for the
inspection of the work and checking and testing
of the materials as established and adopted by
the board of supervisors from time to time by
resolution, less the amount of the improvement
plan review fee. If any portion of the work has
been done prior to the time of depositing the
fee, the subdivider shall pay to the county all
necessary costs plus fifteen percent thereof, for
the inspection and testing required to verify the
quantity and quality of the work done. (Ord.
78-5).
Article 96-4.4
Completion
96-4.402 General. The subdivider shall
prosecute the work to completion without
undue delay except for inclement weather or
other reasonable causes. (Ord. 78-5).
96-4.404 Penalty for delay in completion.
Delay in completion of the work beyond the
period stated in the subdivision agreement,
unless an extension thereof is approved by the
424
public works department or board of supervisors
and any involved corporate surety or financial
institution, may result in forfeiture of the cash
deposit and/or security, or a portion thereof, for
the completion of the work. A one-year
extension may be approved by the public works
department. Any further extension can only be
approved by the board of supervisors. Prior to
the approval of any extension, the public works
department shall review the sufficiency of the
security and remaining work to be done. (Ord.
78-5). ~
Article 96-4.6
Acceptance
96-4.602 Recommendation by public works
department. When all improvement work
required by the improvement plans is complete
to the satisfaction of the public works
department, it shall notify the board of
supervisors that such work has been
satisfactorily completed and recommend the
acceptance thereof. (Ord. 78-5).
96-4.604 Resolution of acceptance. Upon
satisfactory completion of all work required to
meet the requirements of this title and its
acceptance, the board of supervisors shall file a
resolution of acceptance. (Ord. 78-5).
Chapter 96-6
STREET LIGHTING
Article 96-6.2 Facilities
Sections:
96-6.202
96-6.204
96-6.206
96-6.208
96-6.210
96-6.212
96-6.214
96-6.216
96-6.218
96-6.220
96-6.222
General.
Near school sites.
R-12 or higher density
districts.
Areas zoned for multiple
family, business or com-
mercial uses.
Existing public streets.
Construction plans.
Size and location
designation.
Intersections.
Review of plans.
Service rates.
Street light ownership.
STREET LIGHTING
96-4.602~96-6.208
Article 96-6.4 Standards
Secti ons :
96-6.402
96-6.404
96-6.406
96-6.408
96-6.410
Article 96-6.6
Sections:
96-6.602
Placement.
Underground wiring.
Electrolier installation.
Ornamental poles.
Conformance to standards.
Coun ty Service Areas
(Street Lighting)
Request for street light-
ing service.
96-6.604 Legal description.
Article 96-6.8 Energizing Costs
Sections:
96-6.802
96-6.804
96-6.806
Deposit required.
Dispositon of deposit.
Unexpended deposit.
Article 96-6.2
. Facilities
96-6.202 General. To promote public
health, safety and welfare, especially traffic
safety and crime deterrence, the subdivider shall
provide street lighting facilities for proposed
subdivisions to be located as set forth in
Sections 96-6.204 through 96-6.218. The
provisions of this chapter shall be applicable
only in public streets, or streets intended and
designed to become public streets, and to public
street lighting facilities. (Ords. 79-18 @ 1, 78-5,
67-19: prior code @8476).
96-6.204 Near school sites. Street lighting
facilities shall be provided along all streets
within one mile of an existing school or school
site approved by the local school board. The
one~mile distance shall be measured along the
shortest pedestrian rou te available or planned,
measured from the closest boundary of the
school and the subdivision. (Ord. 78-5).
96-6.206 R-12 or higher density districts.
Street lighting facilities shall be provided along
all streets wherein the area is zoned R-12 or in
land use districts having a higher density. (Ord.
78-5).
96-6.208 Areas zoned for multiple family,
business or commercial uses. Street lighting
facilities shall be provided along all streets
within any portion of a subdivision zoned for
multiple family, business or commercial land
uses. (Ord. 78-5).
425 (Contra Costa County 3-15-79)
96-6.210-96-6.410
SUBDIVISIONS
96-6.210 Existing public streets. The
requirements set forth in Sections 96-6.202
through 96-6.208 apply to the portions of any
existing public street abutting the subdivision.
(Ord. 78-5).
96-6.212 Construction plans. Following
approval of the tentative map, the subdivider
shall prepare and submit for approval, as part of
the improvement plans for the subdivision,
construction plans for the street lighting
improvements required by this title. (Ord. 78-5).
96-6.214 Size, type and location
designation. The improvement plans shall show
the size, type and location of each public street
light, and shall bear the written approval by the
public utility which proposes to serve the
lighting system. (Ords. 79-18 @ 2, 78-5, 67-19:
prior code @ 847 6( e)).
96-6.216 Intersections. The public works
department may require upgrading of existing or
proposed lights at intersections where deemed
necessary to prevent a hazard to traffic or
pedestrians. (Ord. 78- 5 ).
96-6.218 Review of plans. The public works
department's review of the street lighting part of
the improvement plans, when street lighting
facilities are required, shall be a condition
precedent to the approval of the final map or
parcel map for the subdivision by the board of
supervisors. (Ord. 78-5).
96-6.220 Service rates. The public works
director shall select the appropriate lighting rate
from the current street lighting rates established
by the California Public Utilities Commission,
and determine the appropriate fee. (Ords. 79-18
@ 3, 78-5, 71-40 @ I, 67-19: prior code @
8476(j)).
96-6.222 Street light ownership. All street
lighting systems shall be jointly owned and
operated by the county and the serving public
utility company, under the jurisdiction of and as
provided for by the California Public Utilities
Commission, unless other adequate
arrangements are approved by the planning
commission. Neither the county nor any county
service area (street lighting) shall be bound or
obligated for the cost of procurement or
erection of ornamental street lighting standards,
(Contra Costa County 3-15-79)
or for the cost of equipment or installation of
any underground wiring system. . (Ords. 79-18 ~
4, 78-5, 67-19: prior code @ 8478(c)).
Article 96-6.4
Standards
96-6.402 Placement. Whenever possible,
street light poles and other street lighting
facilities shall be placed on lot lines and at
intersections in accordance with the minimum
requirements regarding spacing and lamp size for
all new street lighting to be established by the
board of supervisors on the recommendation of
the public works department. Street lighting
shall be installed only within the right-of-way
dedicated to the public and designed to be
accepted for maintenance by the county. (Ord.
78-5).
96-6.404 Underground wmng. Wiring for
street lighting purposes shall be installed
underground and shall conform to the standards
of the county and the public utility which
proposes to serve the street lighting systems.
(Ords. 79-18 @ 5, 78-5, 67-19: prior code @
8477(b)).
96-6.406 Electrolier installation. When the
subdivider requests installation of street lighting,
electroliers must be furnished and installed in
accordance with the requirements of the county
and the serving utility company, before
acceptance per Section 96-4.602. (Ords. 79-18 @
6,78-5,67-19: prior code @ 8477 (d)).
96-6.408 Ornamental poles. Residential and
commercial street lighting poles may be of an
ornamental type acceptable to the board of
supervisors when they meet the current
standards of the county and the serving public
utility company. (Ords. 79-18 ~ 7, 78-15, 67-19:
prior code ~ 8477(d)).
96-6.410 Conformance to standards. All
electrical equipment and installation shall
conform to the applicable standards of the
following, as they now exist or may hereafter be
amended:
( I) Electrical safety orders of the Division of
Industrial Safety, Department of Industrial
Relations, State of California;
(2) Rules for Overhead Electric Line
Construction, General Order No. 95 of the
426
SIDEWALKS AND PATHS
California Public Utility Commission;
(3) Standard Specifications of the serving
public utility company. (Ord. 78-5).
Article 96-6.6
County Service Areas (Street Lighting)
96-6.602 Request for street lighting service.
Before approval of the final map or parcel map
of any subdivision in which the installation of
street lighting facilities is required, the
subdivider shall file a request with the local
agency formation commission, copy to public
works department, for approval of annexation
of the subdivision to a county service area for
the purpose of financing the street lighting,
maintenance and replacement costs, unless the
subdivision is already contained within the
boundaries of a county service area authorized
to supply street lighting. (Ord. 78-5).
96-6.604 Legal description. The request
shall be accompanied by a legal description of
the exterior boundaries and map showing the
boundaries of the area to be annexed with
sufficient bearings and distances to correctly
describe the boundary. The map shall give such
supplementary information as is necessary to
accurately locate the area in relation to local
streets, city boundaries, or adjacent subdivision.
(Ord. 78-5).
Article 96-6.8
Energizing Costs
96-6.802 Deposit required. Prior to
approval of the final map or parcel map, the
subdivider shall deposit money with the public
works department, sufficient in amount to
energize, de-energize, re-energize, and/or
maintain the lights shown on the public street
lighting part of the improvement plans for one
year. (Ords. 79-18 S 8,78-15,67-19: prior code
S 8478(b)).
96-6.804 Disposition of deposit. The
one-year lighting deposit shall be used to pay the
cost of energizing, de-energizing, re-energizing
and/or maintaining the lights from the
acceptance of the road and from fifty percent
occupancy of the subdivision until revenues are
available to defray such costs. (Ords. 79-18 S 9,
78-15,67-19: prior code S 8478(b)).
96-6.602-96-8.402
96-6.806 Unexpended deposit. Any
unexpended deposit shall be deposited to the
credit of the lighting service area to which the
subdivision was annexed. (Ord. 78-5).
Chapter 96-8
SIDEWALKS AND PATHS
Article 96-8.2 Paths
Sections:
96-8.202 Along rear or side line of lots.
96-8.204 Easements.
96-8.206 Surfacing.
Article 96-8.4 Sidewalks
Sections:
96-8.402
96-8.404
96-8.406
96-8.408
96-8.410
Locations
Width and thickness.
Obstruction restriction.
Relationship to curbs.
Relationship to right-of-
way line.
Article 96-8.2
Paths
96-8.202 Along rear or side line of lots.
Where paths are established along the rear or
side lines of lots, the path shall be entirely
within the lot and contiguous to the rear line or
side line of the lot, and the path shall be shown
in dashed lines. (Ord. 78-5).
96-8.204 Easements. Easements not less
than six feet wide shall be provided for
pedestrian paths when required for the public
convenience. (Ord. 78-5).
96-8.206 Surfacing. Pedestrian paths shall
be surfaced with the same material of the same
thickness specified below for sidewalks and for a
width of at least five feet. (Ord. 78-5).
Article 96-8.4
Sidewalks
96-8.402 Locations. Portland cement
concrete sidewalks shall be provided at the
following locations within the subdivision:
(1) Along all thoroughfares;
(2) Along all arterials, collector and minor
streets which serve as direct access to schools
within one mile of an existing school or school
427
(Contra Costa County 3-15-79)
96-8.404-96-12.202
SUBDIVISIONS
site approved by the local school board. The
one-mile distance shall be measured along the
shortest pedestrian route available or planned,
measured from the closest boundary of the
school site and subdivision;
(3) Along all streets wherein the area is zoned
R-12 or in land use districts having a higher
density;
(4) Along all streets within any portion of a
subdivision zoned for multiple family, business,
or commerciaUand uses. (Ord. 78-5).
96-8.404 Width and thickness. Sidewalks
shall be at least four feet wide, exclusive of
curbs, and not less than three and five-eights
inches thick. (Ord. 78-5).
96-8.406 Obstruction restriction. Sidewalks
less than six feet in width shall not be
obstructed by utility installations, mailboxes or
by planting. (Ord. 78-5).
96-8.408 Relationship to curbs. Sidewalks
adjacent to curbs shall be monolithic with curb
if curbs did not exist prior to commencement of
work included under the subdivision agrement.
Sidewalks shall be adjacent to curbs unless the
conditions of approval of the tentative map
provide otherwise. (Ord. 78-5).
96-8.410 Relationship to right-of-way.
Sidewalks shall be fully within the street
right-of-way. (Ord. 78-5).
Chapter 96-10
UNDERGROUND UTILITIES
Sections:
96-10.002
96-10.004
96-10.006
Exceptions.
Responsibility of subdivider.
Application of chapter.
96-10.002 Exceptions. All utility
distribution facilities, including but not limited
to electric, communication and cable television
lines, within any residential or commercial
subdivision shall be placed under ground, except
as follows:
(1) Equipment appurtenant to underground
facilities, such as surface-mounted transformers,
pedestal-mounted terminal boxes and meter
cabinets, and concealed ducts;
(Contra Costa County 3-15-79)
(2) Metal poles supporting street lights. (Ord.
78-5 ).
96-10.004 Responsibility of subdivider. The
subdivider is responsible for complying with the
requirements of this chapter and shall make the
necessary arrangements with the utility
companies involved for the installation of the
facilities. The advisory agency may grant
exceptions as provided in Chapter 92-6 if
topographical, soil, or other conditions make
underground installation of the facilities
unreasonable or impractical. (Ord. 78-5).
96-10.006 Application of chapter. These
requirements apply to those portions of any
existing public streets abutting the subdivision.
(Ord. 78-5).
Chapter 96-12
CURBS AND GUTTERS
Article 96-12.2 General
Sections:
96-12.202
96-12.204
96-12.206
96-12.208
Conditions requiring curbs.
Block requirements.
Minumum grade.
Designation on improvement
plans.
96-12.210 Minimum elevations.
Article 96-12.4 Turnarounds
Sections:
96-12.402
96-12.404
96-12.406
Article 96-12.6
Sections:
96-12.602 Encroachment permit required.
Cul-de-sac.
Radii for curb returns.
Private road turnaround.
Driveways
Article 96-12.2
General
96-12.202 Conditions requiring curbs.
Curbs shall be required under any of the
following conditions:
(1) The subdivision is within an R-20 district
or a district having a smaller lot size;
(2) The grade of the street is less than one
percent or more than six percent;
(3) The street frontage between adjacent
sections of curb is less than five hundred feet;
(4) The subdivision is for commercial or
industrial purposes. (Ord. 78-5).
428
SIDEWALKS AND PATHS
96-12.204 Block requiremen ts. If curbs are
required in any portion of a block within the
subdivision, the entire frontage along that block
shall be curbed. (Ord. 78-5).
96-12.206 Minimum grade. The mInImUm
grade for curbs and gutters shall be one percent
except a reduction may be authorized by the
public works department. (Ord. 78-5).
96-12.208 Designation on improvement
plans. Improvement plans shall show curb
profiles, including profiles for all curb returns
and cul-de-sacs. (Ord. 78-5).
96-12.210 Minimum elevations. Minimum
top of curb elevations shall conform to Chapter
914-8. (Ord. 78-5).
428-1
96-12.204-96-12.210
(Contra Costa County 3-15-79)
Article 96-12.4
Turnarounds
96-12.402 Cul-de-sac. A paved turnaround
shall be provided at the ends of cul-de-sac
streets. The radius for the edge of pavement, or
curbline, shall be thirty-five feet. (Ord. 78-5).
96-12.404 Radii for curb returns. Curb lines
at street intersections and turnarounds shall be
constructed on a curve having a radius equal to
that shown below:
Standard Radius for Curb Returns
(1) All residential street intersections, twenty
feet;
(2) Cul-de-sac turnaround, thirty-five feet;
(3) Industrial street intersections, thirty feet.
(Ord.78-5).
96-12.406 Private road turnaround. A paved
turnaround area shall be provided at the end of
any private road serving more than two lots. The
radius for the edge of the pavement shall be
thirty-five feet. Alternate turnaround provisions
may be approved if adequate paved area is
provided to accommodate normal residential
traffic. (Ord. 78-5).
Article 96-12.6
Driveways
96-12.602 Encroachment permit required.
An encroachment permit shall be obtained from
the public works department before
construction of any driveway. (Ord. 78-5).
Chapter 96-14
MISCELLANEOUS
Secti ons :
96-14.002
Improvement of county
streets.
Fire hydrants.
96-14.004
96-14.002 Improvement of county streets.
Frontage improvements shall be provided on all
existing county streets adjacent to any
subdivision to the standards required by this
title and the adopted county general plan. The
subdivider will be required to provide frontage
improvements and pavement widening on the
side or sides of the roadway adjacent to the
MISCELLANEOUS
96-12.402-96-14.004
subdivision, including the adjustments of all
existing public utilities owned and operated by
public jurisdictions. (Ord. 78-5).
96-14.004 Fire hydrants. The subdivider
shall arrange for the installation of fire hydrants
at locations designated by the local fire district
and shall pay all costs in connection therewith.
In those areas outside of the East Bay Municipal
Utility District, the subdivider shall pay to the
public works department an amount equal to
two years' rental for fire hydrant service, which
shall be forwarded through the
auditor-controller to the serving fire protection
district or fire district. (Ord. 78-5).
Chapters:
98-2
98-4
98-6
98-8
98-10
Sections:
98-2.002
98-2.004
98-2.006
98-2.008
98-2.010
98-2.012
98-2.014
98-2.016
98-2.018
98-2.020
98-2.022
98-2.024
98-2.026
429
Division 98
STREETS
General
Width
Grades
Pavement
Street Trees
Chapter 98-2
GENERAL
Conformance to general plan.
Reserve strips.
Designation on final map or
parcel map.
Angle of intersection.
Centerlines.
Distance between streets.
Block length.
Street name approval.
Street name signs.
Conditions requiring grade
separation.
Classification.
Traffic safety devices.
In tersections.
(Contra Costa County 3-15-78)
98-2.002-98-4.002
SUBDIVISIONS
98-2.002 Conformance to general plan. The
design, layout, width, circulation, and other
design aspects of streets in a subdivision shall
conform to the locations which may have been
shown on the general plan or in all cases shall
provide advantageous development for the
general planning area within which the
subdivision lies. (Ord. 78-5).
98-2.004 Reserve strips. Reserve strips
controlling the access to streets or other public
rights-of-way shall not be approved unless such
strips are necessary for the protection of the
public welfare or property rights. (Ord. 78-5).
98-2.006 Designation on final map or parcel
map. The final map or parcel map shall show the
monument line of each street, the boundary of
each street, including the width of the portion
of any fractional street being dedicated, the
width of existing road rights-of-way from public
records, and the widths on each side of the
monument line of whole streets. The widths and
locations of adjacent streets shall be shown as
determined from public records. Whenever the
public works department or a city engineer has
established either the centerline or monument
line of the street and such information is made a
public record, this location and data shall be
shown on the final map or parcel map. (Ord.
78-5).
98-2.008 Angle of intersection. All streets
shall intersect as nearly as possible at right
angles. (Ord. 78-5).
98-2.010 Centerlines. Streets entering on
opposite sides of any given street shall have their
centerlines directly opposite each other, or the
centerlines shall be offset by at least one
hundred fifty feet. (Ord. 78-5).
98-2.012 Distance between streets. The
minimum distance between streets entering a
thoroughfare shall be eight hundred feet. (Ord.
78-5).
98-2.014 Block length. Block lengths shall
not exceed one thousand feet. (Ord. 78-5).
98-2.016 Street name approval. Street
names shall be subject to the approval of the
planning department. (Ord. 78-5).
(Contra Costa County 3-15-78)
98-2.018 Street name signs. The subdivider
shall furnish and install necessary street name
signs in accordance with details approved by the
public works department. (Ord. 78-5).
98-2.020 Conditions requiring grade
separation. If a subdivision borders on, or
contains a railroad right-of-way, a limited access
freeway, or similar type of facility, the advisory
agency may require that the street plan be
considered in its relation to the probability of
grade separation. (Ord. 78-5).
98-2.022 Classification. The classes of
streets shall be as follows: thoroughfares,
arterials, collectors, minors, industrial streets
and private roads. (Ord. 78-5).
98-2.024 Traffic safety devices. The
subdivider shall furnish and place such traffic
safety devices within, or adjacent to, the
subdivision as may be specified by the public
works department. (Ord. 78-5).
98-2.026 Intersections. (a) Street
intersections shall be designed to provide
reasonable approaches from side streets, and to
provide smooth continuous flow of drainage
without overflow across the intersection.
(b) Valley gutters shall be provided to carry
drainage across intersections only if
underground drainage facilities cannot
reasonably be provided. Valley gutters shall not
be permitted across arterial streets. Valley
gutters shall be on a continuous minimum grade
of one percent, reduction of which may be
approved by the public works department. (Ord.
78-5).
Chapter 98-4
WIDTH
Sections:
984.002
984.004
984.006
Minimum requirements.
Measurement.
Exceptions.
98-4.002 Minimum requirements. The
minimum width of pavement and rights-of-way
of the various classes of streets shall be as shown
on the following table:
430
Class
Thoroughfares & arterials
Two-lane
Four-lane undivided
Four-lane divided
Industrial two-lane
Industrial four-Ian~
Collector streets
Minor streets
Private roads
(Ord.78-5).
Width of Pavement
wi curbs wlo curbs
Class
Right-of-way
40 feet
64 feet
80 feet
48 feet
64 feet
36 feet
32 feet
64 feet
60 feet
84 feet
100 feet
68 feet
84 feet
56 feet
52 feet
25 feet
36 feet
36 feet
16 feet
98-4.004 Measurement. The width of
roadway shall be measured normal to the
centerline between the top face of the curbs, or
edges of the pavement, not including roadside
ditches. (Ord. 78-5).
98-4.006 Exceptions. Exceptions to the
widths set forth in Section 98-4.002, because of
terrain conditions in hillside areas, shall be
considered on the basis of cross-sections and
other evidence to be submitted by the
subdivider. (Ord. 78-5).
Sections:
98-6.002
98-6.004
98-6.006
98-6.008
98-6.010
98-6.012
98-6.014
98-6.016
Chapter 98-6
GRADES
Maximum limits.
Minimum limits.
Pavement across inter-
section.
Street entering inter-
section.
Vertical curves.
Minimum length of vertical
curve.
Earth slopes in cuts or
embankments.
Horizontal curves.
98-6.002 Maximum limits. Maximum street
grades shall not exceed the following limits:
(1) Arterial streets, eight percent;
(2) Collector streets, fifteen percent;
(3) Minor streets, twenty percent;
(4) Private road, twenty percent;
(5) Driveway, twenty-five percent.
(Ord. 78-5).
98-6.004 Minimum limits. The minimum
GRADES
98-4.004-98-6.016
uniform grade for all classes of streets shall not
be less than one percent, except reduction to
not less than one-half of one percent may be
authorized by the public works department.
(Ord. 78-5).
98-6.006 Pavement across intersection. The
grade of the pavement surface across an
intersection shall not be more than six percent.
(Ord. 78-5).
98-6.008 Streets entering intersection. The
centerline grade of each street entering an
intersection shall not be more than six percent
within a distance of thirty feet from the nearest
curbline of the intersected street. (Ord. 78-5).
98-6.010 Vertical curves. Changes of grade
in vertical alignment of streets shall be made
with parabolic vertical curves. The design of
such curves shall be in accordance with
standards outlined in the California Division of
Highways "Highway Design Manua1."
(a) "Stopping sight distance" shall be
provided for the following design speeds:
(1) Arterial and industrial streets, forty miles
per hour;
(2) Collector streets, thirty miles per hour;
(3) Minor streets, twenty miles per hour;
(4) Private roads, fifteen miles per hour.
(b) "Headlight sight distance" shall be
provided for sag vertical curves in accordance
with these requirements, except where
installation of street lights eliminates any sight
restriction due to lighting. (Ord. 78-5).
98-6.012 Minimum length of vertical curve.
The minimum length of a vertical curve shall be
fifty feet for minor streets and private roads,
one hundred feet for collector streets, and two
hundred feet for arterials. (Ord. 78-5).
98-6.014 Earth slopes in cuts or
embankments. Earth slopes in cuts or
embankment sections shall not be steeper than
one and one-half feet horizontal to one foot
vertical, unless steeper slopes have been
approved based on a report submitted by a soil
engineer. The soil report shall be filed with the
public works department. (Ord. 78-5).
98-6.016 Horizontal curves.
(a) Changes in direction of the streets shall be
made with horizontal circular curves, with the
431
(Contra Costa County 3-15-78)
98-8.202-98-10.006
SUBDIVISIONS
edges of the pavement and curb lines parallel to
and equidistant from the centerline of the
right-of-way.
(b) The radius of curvature in the centerline
of the street shall not be less than:
(1) Arterial street, six hundred fifty feet;
(2) Collector street, two hundred feet;
(3) Minor street, seventy-five feet;
(4) Private road, twenty-five feet. (Ord.
78-5).
Chapter 98-8
PAVEMENT
Article 98-8.2
Secti ons :
98-8.202
98-8.204
98-8.206
Design
General.
Soil tests.
Thickness of base material
and surfacing.
Crown.
98-8.208
Article 98-8.2
Design
98-8.202 General. The structural design of
the pavement includes the determination of the
thickness and type of subbase, base, and
surfacing to be placed over the basement soil
according to an accepted method used by the
public works department. The public works
department shall specify the structural design
for the streets. (Ord. 78-5).
98-8.204 Soil tests. The subdivider, at his
expense, may make tests of the soil over which
the surfacing and base is to be constructed and
furnish the test reports to the public works
department for use in determining a preliminary
structural design of the roadbed. Tests and
pavement structural design will be made by the
public works department after the payment of
the inspection fee. (Ord. 78-5).
98-8.206 Thickness of base material and
surfacing. In no case shall the thickness of the
base material be less than five-tenths of one
foot, nor shall the thickness of asphalt concrete
surfacing be less than fifteen-hundredths of a
foot. (Ord. 78-5).
98-8.208 Crown. The pavement crown and
(Contra Costa County 3-15-78)
geometric design of the street cross-section shall
be shown and dimensioned on the improvement
plans, and shall conform to accepted' design
standards. The minimum cross-slope shall be two
percent. On street grades over six percent, a five
percent cross-slope shall be provided adjacent to
the curb and gutter for a distance of not less
than ten feet from the face of the curb,
reduction of which may be approved by the
public works department. Crown requirements
are waived for private roads. (Ord. 78-5).
Chapter 98-10
STREET TREES
Sections:
98-10.002
98-10.004
Removal.
Approval of species and
planting.
Encroachment permit required.
98-10.006
98-10.002 Removal. All trees conflicting
with the grading, utilities, or other
improvements, or overhanging the sidewalk or
pavement so as to form a nuisance or hazard,
shall be removed or trimmed to eliminate such
nuisance or hazard. (Ord. 78-5).
98-10.004 Approval of species and planting.
Trees to be planted along the street within the
right-of-way shall, be of such species and be
planted in such locations as may be approved by
the public works department. (Ord. 78-5).
98-10.006 Encroachment permit. An
encroachment permit shall be obtained from the
public works department for street tree planting.
(Ord.78-5).
Divisions 912
SURVEY MONUMENTS
Chapters:'
912-2 General Provisions
432
GENERAL PROVISIONS
Chapter 912-2
GENERAL PROVISIONS
Sections:
912-2.002
Conformance to approved
standards.
Allowable error.
Establishment of survey
measurements.
Drainage easements.
912-2.004
912-2.006
912-2.008
912-2.002 Conformance to approved
standards. The subdivider shall construct
permanent survey monuments at the locations
specified on the filed subdivision map. The
monuments and appurtenances shall conform to
approved standards and details prescribed by the
public works department. (Ord. 78-;5).
912-2.004 Allowable error. The allowable
field survey error shall not exceed one part in
five thousand in distance, or thirty seconds in
angular measurement. (Ord. 78-5).
912-2.006 Establishment ~f survey
measurements. Establishment of all survey
measurements shall be certified to in writing by
the engineer to the public works. department
prior to acceptance of street improvements.
(Ord.78-5).
912-2.008 Drainage easements. Along all
portions of natural channels or watercourses
within or bordering upon the subdivision, all
angle points and intersections at lot lines or
drainage easements shall be marked on the
ground in such a manner as to be readily
identified on visual inspection as those which
appear upon the final map or parcel map. (Ord.
78-5).
Division 913
BRIDGE CROSSINGS AND
MAJOR THOROUGHfARES
Chapters:
913-2
913-4
General
Requirements
913-6
913-8
Article 913-2.2
Sections:
913-2.202
913-2.204
Article 913-2.4
Sections:
913-2.402
913-2.404
913-2.406
913-2.408
913-2.410
913-2.412
913-2.414
913-2.416
913-2.418
912-2.002-913.2.404
Procedures
Financial Provisions
Chapter 913-2
GENERAL
General Provisions
Purpose.
Regulations.
Definitions
General.
Area of benefit.
Bridge.
Building inspector.
Circulation element.
Construction.
General plan.
Major thoroughfares.
Public works director.
913-2.202 Purpose. This division effectuates
the Subdivision Map Act (Government Code
S~ctions 66410 and following), including future
amendments thereto, and constitutes the
ordinance referred to in Section 66484 therein.
(Ord. 79-80).
913-2.204 Regulations. The board of
supervisors, from time to time by resolution,
may issue regulations to establish administrative,
procedural, interpretative, and policy direction
concerning the provisions of this division. (Ord.
79-80).
Article 913-2.4
Defmitions
913-2.402 General. Unless otherwise
specifically provided, or required by the
context, the following terms have these
meanings in this division; and these terms and all
provisions in this division are to effectuate
Government Code Section 66484 and shall be
interpreted and applied accordingly. (Ord.
7,9-80).
913-2.404 Area of benefit. "Area of benefit"
433
(Contra Costa County 9-15-79)
913-2.406--913-4.402
SUBDIVISIONS
means an area, not necessarily contiguous, which
is determined by the public works director to be
benefited by a proposed bridge or major
thoroughfare, and which is established by the
board of supervisors. (Ord. 79-80).
913-2.406 Bridge. "Bridge" means a bridge
where the transportation or flood. control
provisions of the circulation element of the
general plan identify railways, freeways, streams
or canyons for which bridge crossings are
required on general plan or local roads, if the
county adopted such provisions effective' at
least thirty days before the filing of a final map
or an application for a building permit. (Ord.
79-80).
913- 2.408 Building inspector. "Building
inspector" means the county's director of
building inspection and includes his' duly
authorized subordinates. (Ord. 79-80; see S 72-
2.00 I).
913-2.410 Circulation element. "Circulation
element" means the part of a general plan
required and described in Government Code
Section 65302(b).(Ord. 79-80).
913-2.412 Construction. "Construction"
means design, acquisition of right-of-way,
administration of construction contracts, and
actl,ial construction. (Ord. 79-80).
913-2.414 General plan. "General' plan"
meians the statement of development policies
adopted by the County pursuant to ArticleSof
Chapter 3 of the :elaIL1ing ,md Z::;::1ingLaw
Government Code Sections 65300 and
following). (Ord. 79-80).
913- 2.416 Major thoroughfares. "Major
thoroughfares" means those major
thoroughfares, identified in the circulation
element, whose primary purpose is to carry
through traffic and provide a network
connecting to the state highway system, if the
county adopted such circulation element
effective at least thirty days before the filing ;1'
a final map or an application for a building
permit. (Ord. 79-80).
)
913-2.418 Public works director. "Public
works director" means the county's. director of
(Cuntra Custa County 9-15-79)
public works and includes his duly authorized
subordinates. (Ord. 79-80; see ~ 24-22.006).
Arrtide 913-4.2
Sections:
913-4.202
913-4.204
Article 913-4.4
Sections:
913-4.402
913-4.404
913-4.406
Article 913-4.6
Sections:
913-4.602
913-4.604
913-4.606
Chapter 913-4
REQUIREMENTS
Fees Required
Subdivisions.
Building permits.
Exceptions
Existing roads/bridges.
Existing buildings.
No double payment.-
Reduction of Fee
In lieu considerations.
In lieu dedication.
Fee added condition.
913-4.202 Subdivisions. As a condition of
approval of a final map, the subdivider of land,
any portion of which is located in an area of
benefit, shall pay the fee established and
apportioned to that land within the area of
benefit pursuant to this division for the purpose
of defraying the actual or estimated cost of
constructing bridges and/or major
thoroughfares. (Ord. 79-80).
913-4.204 Building permits. As a condition
of approval of a building permit, an owner of
property, any portion of which is located in
an area of benefit, shall pay the fee established
and apportioned to that property within the
area of benefit pursuant to this division for the
purpose of defraying the actual or estimated
cost of constructing bridges and/or major
thoroughfares. (Ord. 79-80).
Article 913-4.4
Exceptions
913-4.402 Existing roads/bridges. Notwith-
standing the provisions of Article 913-4.2,
payment of fees shall not be required for major
thoroughfares unless such major thoroughfares
are in addition to, or a reconstruction of, any
existing major thoroughfares serving the area
at the time of the adoption of the boundaries of
434
the area of benefit, or for bridge facilities unless
the planned bridge facility is an original bridge
serving the area or an addition to any existing
bridge facility serving the area at the time of the
adoption of the boundaries of the area of
benefit. Such fees shall not be expended to
reimburse the cost of existing. bridge facility
construction. (Ord. 79-80).
913-4.404 Existing buildings. Notwithstan-
ding the provisions of Article 913-4.2, pay-
ment of such fees shall not b(( required as a
condition of issuing a building permit for the
following:
(1) The alteration or enlargement of an
existing building or structure, and/or the
erection of any building(s) or structure(s)
accessory thereto, on the same parcel of land,
provided all the following conditions are met:
(A) The total value, as determined by the
building inspector, of all such work proposed to
be or actually completed within any three-
year period does not exceed one-half of the
value (as shown on the Assessor's records) of
all existing improvements on that parcel of land,
(B) The work does not change the
classification of occupancy as defined by
Section 501 of the Uniform Building Code, and
(C) The work will not change the potential
for traffic generation or traffic attraction;
(2) Any alteration or enlargement of an
existing residential building or structure not
creating an additional dwelling unit;
(3) Private garages, children's playhouses,
radio and television receiving antennas,
windmills, silos, tank houses, shops, barns, coops,
stables, pools, patios, and other buildings which
are accessory to one-family or two-family
dwellings;
(4) Outdoor advertising structures;
(5) Agricultural buildings or structures. (Ord.
79-80).
913-4.406 No double payment. No
property will be assessed a fee under this
division for both a final map and a building
permit. (Ord. 79-80).
Article 913-4.6
Reduction of Fee
913-4.602 In lieu considerations. In its
discretion, the board of supervisors may accept
considerations (such as land, easements,
PROCEDURES
913-4.404-913-6.002
dedications, structures, or construction) in lieu
of the payment of fees, if it finds that the
considerations are equivalent in value to the fees
apportioned under this division and that such in
lieu consideration will serve the purpose of this
division. (Ord. 79-80).
913-4.604 In lieu dedication. The county
may require or accept the dedication and/or
improvement of right-of-way along a major
thoroughfare and may reduce the fees
apportioned to a parcel by an amount equal to
the value of the right-of-way and improvements,
as determined by the public works director, if
that value was included in the calculation of the
fee. (Ord. 79-80).
913-4.606 Fee added condition. Nothing in
this division shall reliyve a developer from the
requirements of this cdde to dedicate lands for
public roads and improve public roads as a
condition of approval of a final map, or as a
condition of issuing a building permit. (Ord. 79-
80).
Sections:
913-6.002
913-6.004
913-6.006
913-6.008
913-6.010
913-6.012
913-6.014
913-6.016
913-6.018
913-6.020
913-6.022
913-6.024
913-6.026
Chapter 913-6
PROCEDURES
Report.
Contents.
Method of fee apportionment.
Apportionmen t - Maj or
thoroughfares.
Fee applicable to all property.
Exempted property.
Notice of hearing.
Protest.
Withdrawal of protest.
Majority protest.
Partial protest.
Hearing.
Recording resolution.
913-6.002 R~port. The directors of public
works and planning shall prepare a report for
each proposed area of benefit for which a fee
under this division is to be imposed, and shall
file it with the clerk of the board of supervisors.
The clerk shall fix a time, date, and place for
board hearing thereon and for filing objections
or protests thereto. (Ords 79-85 S I, 79-80).
434-1
(Contra Costa County 9-15-79)
913-6.004-913-6.024
SUBDIVISIONS
913-6.004 Contents. The report shall
contain preliminary information related to the
b<?undaries of the area of benefit, the estimated
costs, and the methodes) of fee apportionmenL
It must be based on a development program for
the area adopted by the board. (Ords. 79-85 S 2,
79-80).
913-6.006 Method of fee apportion'ment.
The public works director shall compute and
apportion the fee by any fOrmula(s)or
methodes) which fairly distributes the feeamortg
illl subject parcels in proportion to the estimated
benefits they will ,receive from' the proposed
improvement. (Ord 79-80). .
913-6.008 Apportionment-Major thorough-
fares. In the case of major thoroughfares, the
method of fee apportionment shall not provide
for higher fees on land which abuts the proposed
improvement, except where the abutting
property is provided direct. usable access to the
major thoroughfare. (Ord. 79-80).
913-6.010 Fee applicable to all property.
Such apportioned fees shall apply to all property
within the area of benefit (Ord. 79-80).
913-6.012 Exempted property. Where the
area of benefit includes property not subject to
the payment of fees pursuant to this division,
the board shall provide for payment of the share
of improvement costs apportioned to such
property from other sources. (Ord. 79-80).
913-6.014 Notice of hearing. The public
works director shall mail notice of the hearing,
in accordance with the provisions of
Government Code Section 65905, at least ten
days beforehand, to the owners of each parcel of
land, or portion thereof, situated within the area
of benefit. (Ord. 79-80).
913-6.016 Protest. At any time not later
than the hour set for hea.ring, any owner of
property situated within the area of benefit may
protest the proposed area of benefit, method of
apportioning the fee, or the improvement, or all
of them. Such protest must be in writing and
must contain a descnption of the property in
which each signer of the protest is interested,
sufficient to identify it, and, if the sigiiersare
not shown on the last equalized assessment roll
as the owners of such property, must contain
(Contra Costa County 9-15-79)
or be accompanied by written evidence that
such signers are the owners of such property. All
such protests shall be delivered to the clerk of
the board, and no other protests or objections
shall be considered. (Ord. 79-80).
913-6.018 Withdrawal of protest. Any pro-
test may be withdrawn in writing by the owner
making it, at any time before the conclusion
of a public hearing held under the provisions
of this division. (Ord. 79-80).
913-6.020 Majority protest. If, within the
same time when protests may be filed under the
provisions of Section 913-6.016, there is filed a
written protest by the owners of more than one-
half of the area of the property to be benefited
by the improvement, and sufficient protests are
not withdrawn so as to reduce the area
represented to om?half of that to be benefited,
or less, then the proposed proceedings shall be
abandoned, and for one year from the filing of
that protest the board shall not commence or
carryon any proceedings for the same
improvement or acquisition under the provisions
of this division. Nothing in this division shall
preclude the processing and recordation of maps
in accordance with other provisions of this Title
9 if proceedings are abandoned. (Ord. 79-80).
913-6.022 Partial protest. If any majority
protest is directed against only a portion of the
improvement, all further proceedings under
the provisions of this division to construct that
portion of the improvement so protested against
shall be barred for a period of one year, but the
board may begin new proceedings not including
any part of the improvement or acquisition so
protested against. The board, within such one-
year period, may commence and carryon new
proceedings for the construction of a portion of
the improvement so protested against if it finds,
by the affirmative vote of four-fifths of its
members, that the owners of more than one-half
of the area of the property to be benefited are
in favor of going forward with such portion of
the improvement or acquisition. (Ord. 79-80).
913-6.024 Hearing. The board shall hear the
matter as scheduled, or as postponed or
continued for good cause, and consider any
objections or protests. At such hearing, the
board may then adopt, revise, reduce or increase
any portion of the report. The board, by
434-2
FINANCIAL PROVISIONS
resolution, shall establish the boundaries of the
area of benefit, the costs, whether actual or
estimated, and a fair method of allocation of
costs to the area of benefit and fee
apportionment; and the board must find that
the road and/or bridge improvements are
necessary and desirable within the area of
benefit. (Ords. 79-85 S 3, 79-80).
913-6.026-913-8.012
FI~A="(IAl PRO\'ISIO~S
913-6.024 Hearing. The board shall hear the
matter as scheduled, or as postponed or
continued for good cause, and consider any
objections or protests. At such hearing. the
board may then adopt, revise, reduce or increase
any portion of the report. The board, by
ordinance. shall establish the boundaries of the
area of benefit. the costs. whether actual or esti-
mated, and a fair method of allocation of costs - "
to the area of benefit and fee apponionment:
and the board must .fmd that the road and/or
bridge improvements are necessary and desirable
within the area of benefit. (Ords. 86-39 ~ 5.
79-85 fi 3, 79-80).
913-6.026 Recording. The clerk of the
board shall promptly me a cenified copy of this
ordinance with the county recorder. (Ords.
86-39 i 6. 79-80).
Chapter 913-8
FINANCIAL PROVISIONS
Sections:
913-8.002
913-8.004
913-8.006
913-8.008
913-8.010
913-8.01::!
Establishment of fund.
Deposit of fees.
Use of money.
Advance by county.
Debts.
County funds. "
913-8.002 Establishment of fund. A fund
shall be established for each planned bridge
facility and each planned major thoroughfare
project. If the area of benetit is one in which
more than one bridge is required to be
constructed. a "fund may be established covering
all of the bridge projects in the area. (Ord. 79-
80).
913.-8.004 Deposit of fees. Fees paid
pursuant to this division shall be deposited in a
planned bridge or major thoroughlare fund.
(Ord.79-80).
913-1L006 Use of money. Money in su~h
fund shall be expended solely to defray the
actual or estimated cost of constructing bndges
over waterways. railways. freeways. and
canyons. or constructing major thoroughfares
.:) 13-n.0:";-..j 13-~.O 1:
serving the area to be benefited and from which
the fees comprising the iund were collected. or
to reimburse the county for the 'cost of
constructing those improvements. fOrd. 79-80)
" I
913-8.008 Advance by county. The count)'
may advance money from its general fund or
road fund to pay the cost of constructing the
improvements and may reimburse the general
fund or road fund for such advances from
planned" bridge or major thoroughfares funds
established under this chapter. (Ord. 79-80). -
913-8.010 Debts. The county may incur an
interest-bearing indebtedness for the
construction of bridges or major thoroughfares:
but the sole security for repayment of such
indebtedness shall be the money in the planned
bridge or major thoroughfares funds. (Ord. 79-
~~ ""
913-8.012 County funds. The county m::iY
provide funds for the construction of bridges or
major thoroughfares to defray costs not
allocated to the area of benefit. (Ord. 79-801.
Division 914
DRAINAGE
Chapters :
914-2
914-4
Minimum Requiremen ts
Appurtenances in Public
Righ ts-of-way
Open Channels and Condui ts
Levees
E:1semen IS
Miscellaneous
914-6
914-8
914-10
914-12
Chapler 914-1
MINIMUM REQUlRE~IENTS
Secti ons:
914-::!.OO~
Protection from surface
waters.
Adequate stann dramage
facilities.
914-~ .004
434-3
fl"onHa '-'usia \.'ounty \\-b<<O\
.'~ ]..+-':.CJO:_u i"';":,00~1
SL'BDI\'ISIO\S
914-2.006
Surface water flowing from
subdivision.
Surface water flowing to
subdivision.
Storm water disposal
restrictions.
Runoff quantity determination.
Drainage facilities-Minimum
capacities.
Closed conduit requirements.
Channel design standards. .
914-2.008
914-2.010
914-2.012
914-2.014
914-2.016
914-2.018
914-2.002 Protection from surface waters.
All portions of the subdivision shall be protected
;'"ron flood 'Lzan.~. '~U;J1tjvT', ~;.;:,.: O\'t"t~ow
ana pondiag of storm waters, spnngs and all
,other surface waters. All fInished floors shall be
above the water surface of a one-hundred-year
frequency storm runoff. (Ord. 78-5).
914-2.004 Adequa te storm drainage
facilities. The design of all improvements within
the subdivisio:l shall be such that all surface
waters occuring within the subdivision, as well as
all surface waters flowing onto and/or through
the ~ubdivision. shall be conveyed through the
:subdivision without damage to any
improvement, building site, or dwelling which
may be constructed within the subdivision.
:Storm dra:inage facilities within the subdivision
shall be designed to adequately convey the
storm water runoff from the ultimate
development of the drainage basin or watershed.
{Ord. 78-5).
914-2.006 Surface water flowing from
'subdivision. (a) Surface waters flowing from the
subdivision in any form or manner shall be
conveyed without damage to any improvement.
building, or dwelling to a natural watercourse
having a definable bed and banks. or to an
existing adequate !\torm drainage f:1cility. Storm
draiil1ge facilitiest/) b,_ ,;c.:1~t=U-:;l~;.l outside of
the subdivision shall be designed to adequately
convey the storm water runoff f:-nm {he
ultimate development of the drainage basin or
watershed lying 'within and above the
subdivision.
(b) Wherever surface waters must be
con....'yed beyond the boundarie~ of the
subdjvi~;on jJl order to discharge into d natural
watercourse or to an existing adequate storm
(Contu t: 0513 County II.lib"
drainage facility, the subdivider shall comply
with either subsections (c), (d) or (e) of this
section, prior to filing of the fmal map or parcel
map.
(c) The subdivider shall deposit with the
public works department a copy of a duly
recorded drainage release from the adjacent
property owners in a form and content
acceptable to the county counsel, accepting the
flow of surface waters from the subdivision onto
and over that property, or the detention and
pending of s~rface waters upon that property,
without liability by the county for damages
occvrrin~ therefrom. Such releases shall be
,::~!ain~d iI'_'I;] :1L ;.-n.;"c::tf G',~lleiS be:.'.' ~en .He
boundaries of the subdivision and the point at
which the surface waters will enter a natural
watercourse having definable bed and banks or
an existing adequate storm drainage facility.
(d) The subdivider shall deposit with the
public works department a copy of a duly
recorded grant of a drainage easement to the
county from the pr')perty ownerl S). Such a
document shall be obtained from all property
owners between the boundaries of the
subdivision and the PQ!nt at which the surface
waters will be dis,,-harged into a natural
watercourse or an existing adeq uate storm
drainage facility. or the area upon which surface
waters will be detained and ponded.
(e) The subdi..ider shall present written
evidence which proves to the satisfaction of the
public works department that it is not feasible
to obtain by negotiation from the property
owner(s) either a drainage release or a grant of
drainage easement. The public works
department may then authorize the subdivi<;ier
to institute condemnation proceedings to obtain
the easement.
(0 Whenever it shall appear to the subdivider
that those heretofore mentioned matters relating
to the ';:C:!.Iisitic!i i-,f Jrain::!gt' lclt':lses :l:1d
ea~ements. :ll.d:or lhe institution of
condemnation proceedings. may be more
expeditiously administereu by the cou:>ty. the
subdivider may request that the board of
supervisors direct the public works department
to assume the responsibility for proceeding with
these matters. The board. upon such terms and
coaditions as they specify. may authorize the
department to act on behalf of the subdivider in
complying with subsection (b) of this sectIOn.
(Ord.78-5r.
434-4
~tI~I~IC\1 REQl'IRDIE;\TS
914-2.008 Surface water flowing to
subdivision. Whenever surface waters flowing to
or onto the subdivision in any form or manner
will be detained or ponded on adjacent
property(s) as the result of improvements
constructed by the subdivider, the subdivider
shall comply with. Section 914-2.006 prior to
the filing of the fmal map or parcel map. (Ord.
78-5).
914-2.010 Storm water disposal restrictions.
Storm waters flowing from the subdivision in
any form or manner shall not be permitted to
flow into any water conveyance facility of the
Contra Costa. Canal, nor into any other water
conveyance or impounding facility for domestic
water consumption. (Ord. 78-5).
914-2.012 Runoff quantity determination.
Runoff quantities shall be determined by
methods consistent with current engineering
practices using basic data supplied by the public
works department for the frequency of the
average recurrence interval stipulated in Section
914-2.014. (Ord. 78-5).
914-2.014 Drainage facilities - Minimum
capacities. Drainage facilities directly affecting
the subdivision shall have the following
minimum capacities:
(l) Major drainage channels and conduits
shall have sufficient capacity to contain a
fifty-year frequency of average recurrence
interval runoff:
(::!) Secondary drainage channels and
conduits shall have suffici~nt capacity to contain
a twenty-five year frequency of averag~
recurrence interval runoff:
(3) Minor drainage facilities. channels and
conduits shall have sufficient capacity to contain
-+3-1--:i
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(L"ontra t.'d~t31. uunty Il.~t;/..~~~
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c.
APPURTENANCES IN PUBLIC RIGHTS-QF-W A Y
~
a ten-year frequency of average recurrence
interval runoff. (Ord.78-S).
914-2.016 Qosed conduit requirements.
Waters within street areas shall be placed in
closed conduits when the maximum depth of
computed flow exceeds the capacity of the
gutter or creates a tmffic hazard or endanagers
property. Storm water in natuml or artificial
dminage channel! shall be placed in closed
conduits or concrete lined channels where the
quantity does not exceed eighty cubic feet per
second except that the advisory agency may
r~':(:-:;lm':'id tL"lt .1r. e~-:i.:ting r:"ti.,~J WS1P,"CC'J.C::C
endowed with signixicant natuml beauty in the
form of trees, shrubs, or scenic attmction may
be 'ltilized for an open drainage f&cility with
such drainage improvemen ts as may be
deSignated by the public works depar:men t.
Sucl1 areas shall either be dedicated as easements
or designated on the final map or parcel map as
drainage reserves upon and within which no
improvements or structures of any nature shall
be constructed without the written consent of
the public works department. (Ord. 78-5).
914-2.018 Channel desi!'l standards. Design
of drainage channels, conduits, and
appurtenances shall confonn with deSign
standards of the public works department. (Ord.
78-5).
Chapter 914-4
APPURTENANCES IN PUBLIC
RIGHTS-OF-WA Y
Article 914-4.2
Sections:
914-4.20::;
914-4.204
~1~:;.2C-:
Article 914-4.4
Sections:
914-4.402
914-4.404
914-4.406
914-4.408
Article.' 914-4.6
Sections:
914-4.602
q 14-4.604
Culverts
Under-uriveway culverts.
Street-crossin? culverts.
Culverts uuts;oc the .-C.1J \>:::y.
Roadside Ditches
DisCharge to roadside ditches.
Roadside ditch sections.
Purpose of roadside ditches.
Roadside ditch gradients.
M~ccl1:lneous
Piping r~quirements.
Storm drain inlets.
914-2.016-914-4.408
914-4.606 Drainage structure to allow
for tidal action and flood
stage.
Article 914-4.2
Culverts
914-4.202 Under-driveway culverts.
Culverts under driveway entmnces for roadside
,ditches shall be adequate to carry the design
flow, but shall not be less than twelve inches
inside diameter. (Ord. 78-5).
914-4..iu... Srl~t-cla;..smg CUhl.:l :.:;. (',.:rt5
crossing the street shall be of a size adequate to
carry the deSign flow, hut shall no~ he smaller
than fifteen inches im.!de diameter for concrete
or eighteen inches inside diameter for corrugated
metal pipe or all1Il1inum pipe. (Ord. 78-5).
914-4.206 Culverts outside the roadway.
Culverts for use outside the roadway may be of
any approved type and strength to meet field
conditions. (Ord. 78-5).
Article 914-4.4
Roadside Di tches
914-4.402 DisCharge to roadside ditches. l'o
concentrated flow of storm waters from a
subdivision shall be diSCharged into a roadside
ditch. (Ord. 78-5).
914-4.404 Roadside di tch sections.
Roadside ditch sections shall be subject to the
approval of the public works department as to
shape, size, gradient, lining, and location within
the road right-of-way, and shall have the
required hydraulic capacity. (Ord. 78-5).
914-4.406 Purpose of roadside ditches.
Ro"r!s;de ditches and ~!.h .eIT .:;haJ! be "lru'.1f1eJ
(0 ...dIr:: ; he Jram"ge irom the road and
tributary lands without damage to the roadbed
or abutting ~ropert:::.(Ord. 78-5).
914-4.408 Roadside di tch gradien Le;. The
maximum gradient for earth roadside ditches
shall not exceed four percent, nor be less than
on~ perc'~nt. The Iilinimum gradient for lined
roadside ditches shall not be less than one
percent. (Oni. 78-5).
435
(Conrr~ CO". COunl) J.J S.7S)
C) 14-4.602-914-8.002
SUBDIVISIONS
Article 914-4.6
Miscellaneous
914-4.602 Pipin-g retluirements. All.
corrugated steel and aluminum pipe intended for
use within the roadway shall be of the gauge
recommended by the manufacturer and
approved by the public works department for
the cover and service conditions required.
Corrugated steel and aluminum pipe shall be
bituminous coated where required by the public
wO.rks department. Additional protective coating
or paving of metal pipes may be required for
severe service conditions. The gauge of pipe
proposed at each location shall be noted on the
improvement plans. (Ord. 78-5).
914-4.604 Storm drain inlets. Storm drain
inlets shall be of a design approved by the public
works department. Water shall be directed into
the storm drain inlet without a reversal of
direction of the flow of the water. (Ord. 78-5).
914-4.606 Drainage structures to allow for
tidal action and flood stage. Drainage structures
ishaliallow for tidal action and flood stage where
applicable. The hydraulic pressure elevation in
any storm drainage system shall be at least one
and twenty-five-hundredths feet below the top
of any inlet grate or manhole. (Ord. 78-5).
Chapter 914-6
OPEN CHANNELS AND CONDUITS
Secti ons:
914-6.002
914-6.004
Earth channels-Maximum
design velocities.
Earth channels-Minimum
velocities.
Earth ch:lnnels-Side slopes.
Lined channels-Side slopes.
Closed conduits-Minimum
flow line.
Closed conduits or lined
channels-Outlet velocity
Clearance of natural
channels.
914-6.006
914-6.008
914-6.010
914-6.012
914-6.014
'11-1-0.002 E.1rth ch:lIlllcl... :\1aximum
tk'"i::11 \l'I(I(:itie~. ~1aXlmUl11 lksi~n velodties for
I1Jll:r:1 or :.HIIIIGtlc;Jr!!: ,;il:llln.:ls shall h~ tho\l'
"pl'~lIi....J hy J ,oIl I:n1!ln....t.'r In the pn:limlOary
,oil !I.'port. (OiL!. -,0,,:,__)
(i. "uuH.. (u,t... " (Junt~ J.I S.~ W I
914-6.004 Earth channels Minimum
velocities. ~1inimum velocities at design capacity
for earth ~hannels shall he three feet per second.
(Ord. 78-5).
(
914-6.006 Earth channels - Side slopes.
Side slopes for improved earth channels shall be
those specified by a soil engineer, but in no
instance shall side slopes be steeper than one and
one-half horizon tal to one vertical. (Ord. 78-5).
914-6.008 Lined channels - Side slopes.
Side slopes for lined channels shall be those
specified by a soil engineer: (Ord. 78-5).
914-6.010 Closed conduits - Minimum
flow line. Minimum flow line gradients for
closed conduits shall be not less than three
one-thousandths foot per foot. (Ord. 78-5).
914-6.012 Closed conduits or lined channels
- Outlet \'elocity. Where the outlet velOCity
from a closed conduit or lined channel exceeds
the maximum allowable velocity for the earth
channels receiving the flow, sui table protective
~ works such as riprap or a stilling basin shall be
provided. (Ord. 78-5).
/r'-.(
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914-6.014 Clearance of natural channels.
The subdi\ider shall, within the boundaries of
the subdivision, selectively clear all natural
channels and watercourses of all structures.
trees. brush, and debris which would interfere
with or obstruct the flow of storm waters. (Ord.
78-5).
Chapter 914-8
LEVEES
Sections:
914-8.002
914-8.004
914-8.006
91 4-8.008
914-8.010
914-8.012
Compliance requirements.
Toe and slope requirements.
Top width.
Earth embankments.
Degree of protection.
Approval of design and
construction.
Control and maintenance.
914-S.014
914-S.002 Cumpliance requirement....
:\J....qllJl.... kvees shall be provid~d in (;ompl1an~'l'
With S~ctlon 914-2.00~. (OrJ. 7S-5>.
( ,
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436
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lit...j
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l
914-8.004 Toe and slope requirements. For
levees used in combination with open channels
and waterways, the toe of the levee on the water
side shall be placed at leut two feet back from
the top of the bank of channel or waterway.
Levee slopes shall not be steeper than two
horizontal to one wrtical. (Ord. 78-5).
914-8.006 Top width. Top width of outer
or c:ircumferential levees constructed for the
protection of reclaimed. lands shall be not less
than eighteen feet. (Ord. 78-5).
914-8.008 Earth embankments. Earth
l"tnbankmento; aecc.;.s.;i:;y fo1" pr~)tl'dhn 0f Jr.,
portion of me subdi~on from 'sunace waters
and not adjacent to open <:hannels or water,vays
shall have minimum top w~dths of fiw feet.
Embankment slopes shall be the same as for
levees. COrd. 78-5).
914-8.010 Degree of protection. The degree
of protection for which le~ shall be designed
shall be as follows:
C I) For watercourses and channels, levees
shall provide the degree of protection as
specified in Section 914-2.012;
(2) For those areas to be protected from
waters of San Francisco Bay and San Pablo Bay
from the southerly and westerly boundaries of
Contra Costa County to the state highway
bridge at Carquinez Strait, Ie\'eeS shall provide
protection from tides and from waves created by
wind action. Tops of curbs shall be not lower
'than elevation 7.s U.5.G.S. datum; .
(3) For those areas to be protected from the
waters of Carquinez Strait and Suisun Bay from
\the '$tate highway bridge at Carquinez Strait to
Simmons Point on Chipps Island, levees shall
provide protection from tides, flood flows in the
Sacramento and San Joaquin Rivers, and waves
aeated by wind action. The basis for flood
protection shall be the U .S. ~y Corps of
E.l~in~ers' stan:\ard !"tcj~ct i{'Jod.
apprOXlLlately equivalent to a recurrence
interval of two hundred years. Tops of curbs
shall be not lower than elevation 8.5 U.5.G.S.
datum;
(4) For those areas within the delta area from
Simmons Point on Chipps Island to the easterly
:boundaries of Contra Costa County, levees shall
prOvide protection from tides, flood flows in the
Sacramento and San Joaquin Rivers and all
waterways tributary thereto, and waves aeated
EASEMENTS
9 14-8.004-914-8.014
by wind action. The basis for flood protection
shall be the U.s. Army' 'Corps of Engineers'
standard project flood, approximately
equivalent to a recurrence interval of two
hundred years. Tops of curbs shall be not lower
.. than elevation 9.5 U.S.G.s. datum. (Ord. 78-5).
914-8.012 Approval of design and
construction. Approval of the design and
construction of all levees within those areas
desc:n"bed in Section 914-8.010(2), (3) and (4),
shall be obtained from the U.s. Army Corps of
Engineers,Califomia State Reclamation Board,
S:>.n Frandsi'....) Bay COll."erv:lfion and
r.'e'~lopme:.,; ':vmr.-~...H..,1, ..nd any &;C':.,,~
operating local reclamation district within whose
bouTtdaries levees are to be COllStructed. (Ord.
78-5).
914-8.014 Con'trol and maintenano=. The
jurisdiction for the control and maintenance of
all required levees shall be as determined by the
county. except as to areas where reclamatio.l
distrkts or districts with similar powers have
such responsibilities. in which case the district
having . that responsibility shall present
assurances satisfactory to the county that they
ha~ the necessary means and will periorm the
continued necessary maintenance of those le~es
protecting the subdivision. (Ord. 1;8-S).
Chapter 914-10
EASEMENTS
Article 914-10.2 Closed Conduits
Sections:
914-10.202 Cosed conduits-Minimum
widths of easements.
Article 914-10.4 Open Owtnels
Sections:
914-. i 0.40: Imj:l.oved char.~e!s- Width
of ea...e;nents.
914-10.404 Improved channels-Access
and maintenance easements.
914-10.406 Unimproved channels-
Structure setback.
914-10.408 Structures and landscaping
within easements.
914-10.410 Structures and I.:: nds(,;aping
within structure setback areas.
437
(Conn.. Calla CounlY 10-85)
914-10.101-914-10.406
SUBDIVISIONS
Article 914-10.6 Levees and Ponding Areas
Sections:
914-10.602 Easements for levees and
, ponding areas.
Article 914-10.2
Closed Conduits
914-10.202 Closed conduits - Minimum
widths of easements. Minimum widths of drain-
age easements for closed conduits shall be equ~
to the outside diameter or width of the condUIt
plus three feet on each side, but in no location
less than ten feet. Easement widths shall be
rounded up to the nearest foot. Drainage ease-
ments shall not be divided longitudinally by lot
lines. (Ords. 85-40 i 3, Ord. 78-5).
Article 914-10.4
Open Cbannels
914-10.402 ImproYed channels - Width of
easements. The width of drainage easements for
excavated earth channels and channels greater
than three feet in width that are lined with
concrete or other materials, shall contain the full
outside top width of channel, including lining
and the required adjacent access easements. For
'tined channels having a top width less than three
feet, the minimum width of drainage easement
shall be ten feet. (Ord. 78-5).
914-10.404 Improved channels - Access
easements. (a) For excavated earth channels
within the subdivision, access and maintenance
shall be provided along the banks as follows:
ClanaeI Top
Wiclth (Feet)
0-10
11-30
31-40
41-50
51-60
61-70
71 and abo,,-
ACCIII r..-a
MiDimIlJD Well (Feec)
12 ODe side, 3 other side i! within Slbdivision
15 0lIl side, 3 oCbez side if wi1hiD SlbciiYision
18 ODe Iide, 3 otMr Iide i!1ritldn sabdiwision
21 ODe me. 3 OCher side if WiChiD SlbdiYision
15 ach side if Within Slbdmaion
18 ach side ifWithiD subdivision
21 ach side if WithiD subdivision
(b) For lined channels within the subdivi-
sion, access and maintenance easements shall be
provided along the banks as follows:
(Con Ira COlla CounlY 10.115)
a.u.. Linina
Top Wiclth
(Feet)
3-10
11-15
16-30
31-40
" 41-50
51 and Jbo,,-
Acc.a ____tI
......... Willth
(Feec)
3 ODe Iide, 6 ou. side
6 one side. 12 other side
6 ODe side. 15 other side
6 ODe side, 18 other side
, ODe side, 21 other side
.... aslUth channels
(
(c) Access and maintenance easements shall
be graded in such a manner so as to be usable by
vehicular maintenance equipment, but they need
not be surfaced. Minimum radius of centerline
of such easements shall be forty feet. All such
easements along channels shall be provided with
ingress from a public way and be usable ,b~
vehicular maintenance equipment. The mInI-
mum width of the ingress shall be twelve feet.
Where trees in place on and adjacent to c!1annel
banks are to remain. adequate additional vehicu-
lar easement width shall be offered for dedica-
tion. (Ords. 85-40 ~ 4, 78-5).
914-10.406 Unimproved channels - Struc.
ture setback. (a) "Structure setback line" means
the line separating the structure setback are.a
from the remainder of the lot. For unimproved
earth channels within the subdivision. a struc.
ture setback line shall be shown on the final or
parcel map as follows: The thread of the channel
shall be shown as accurately as possible. and a
dashed line shall indicate the appropriate set.
back with a note describing the fonnula used.
selected from those set forth herein. The de-,
vclopment rights for that portion of the lot on
the creek side of the setbaCk line shall be offered
for dedication to Contra Costa County by
separate instrument.
(b) Channels less than twenty feet deep: the
structure setback line for unimproved channels
with existing side slopes steeper than :.5: 1
(2.5 feet horizontal to 1 foot vertical) shall be
detennined by measuring from the toe of slope
a distance of two-and-one-half times the channel
depth plus thirty feet. The structure setback
line for unimproved channels 'with eXisting side
slopes of 2.5: 1 or flatter, shall be thirty feet
measured from the top of bank.
(c) Channels twenty feet deep and greater:
the structure setback line for unimproved chan-
nels with eXisting side slopes steeper than 3: I
(3 feet horizontal to I foot vertical) shall be
detennined by measuring from the toe of slope
438
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pRDINANCE NO. 85-40
(Providing structure setback areas along unimproved
open channels within subdivisions)
1'\-1". ronrY'::l rl"l~t.::\ C:Ollntv RO'3.rd of Supervisors ordains as follows
(omitting the parenthetical footnotes from the official text of
the enacted or amended provisions of the County Ordinance Code):
SECTION I. SUMMARY.. Thi s ordi nance adds secti on 726-2.610 and
amends Chapter 914-10 of the County Ordinance Code to add
maintenance easements and provide for restricted structure setbac
areas within subdivisions including open channels.
SECTION II. Section 74-6.010 is added to the County Ordinance
Code, to read:
74-6.010 Structures within structure setback areas. (a) No
building permit shall be issued for the construction of any per-
manent structures other than drainage structures within, under or
over any structure setback area covered by a drainage easement or
a deed of development rights and established pursuant to Chapter
914-10.
(b) Whenever the property upon which a building permit is
sought includes a structure setback area, the building inspector
shall refer the application to the Public Works Department for
verification of the structure setback line.
(Ord. 85-40 ~2.)
SECTION III. Section 914-10.202 of the County Ordinance Code is
amended, to provide that easement widths are rounded up, to read:
914-10.202 Closed Conduits - M:~iQum widths of easements.
Minimum widths of drainage easements for closed conduits shall be
equal to the outside diameter or width of the conduit plUS three
feet on each side, but in no location less than ten feet.
Easement widths shall be rounded up to the nearest foot. Draina!
ease~snts shall not be divided longitudinally by lot lines.
(Ords. 85- 40 53, 78-5.)
SECTION IV. S~ction 914-10.404 of the County Ordinance Code is
amended, to add maintenance easements, to read:
91~-10.404 ImDroved Channels - Access and maintenance ease-
ments. ~ 1) For excavated earth channels within the subdivision
access and maintenance easements shall be provided along the ban
as follows:
Channel Top Width (Feet)
Access Easements (Minimum
W:dth - Feet)
o - 10
12 one side, 3 other side if
w:thin subdivision
11 - 30
15 one side, 3 other side if
within subdivision
18 one side, 3 other side if
within subdivision
2 1 one side, 3 other side if
within subdivision
31 - 40
41 - 50
51 - 60
15 each side if within
subdivision
1
61 - 70
18 each side if within
subdivision
71 and above
21 each side if within sub-
division
(b) For lined channels within the subdivision, access and
maintenance easements shall be provided along the banks as
follows:
Channel Lining Too Width Access Easements Minimum Width
(Feet) . (Feet)
3 - 10 3 one side 6 other side
1 1 - 15 6 one side 12 other side
16 - 30 6 one side 15 other side
3 1 - 40 6 one side 18 other side
41 - 50 6 one side 21 other side
5 1 and above same as earth channels
(c) Access and maintenance easements shall be graded in such
a manner so as to be usable by vehicular maintenance equipment,
but they need not be surfaced. Minimum radius of centerline of
such easements shall be forty feet. All such easements along
channels shall be provided with ingress from a public way and be
usable by vehicular maintenance equipment. The minimum width of
the ingress shall be twelve feet. Where trees in place on and
adjacent to channel banks are to remain, adequate additonal vehi-
cular easement width shall be offered for dedication.
(Ords. 85-40 ~4, 78-5.)
SECTIO~ V. Section 914-10.406 of the 20unty Ordinance Code is
repealed.
SECTION VI. Section 914-10.406 is added to the County Ordinance
Code, to provide for structure setback lines, to read:
914-10.406 Unimproved Channels - Structure setback. (a)
"Structure setoack line" means the lir:'~ separating the structure
setback area from the remainder of the lot. For unimproved earth
channels within the subdivision, a str~cture setback line shall be
shown on the final or parcel map as fc~lows: The thread of the
channel shall be shown as accurately as possible, and a dashed
line' shall indicate the appropriate se~back with a note describing
-.!'" the formula used, selected from those set forth herein. The
development rights for that portion of the lot on the creek side
of the setback line shall be offered for dedication to Contra
Costa County by separate instrument.
(b) Channels less than 20 feet deep: the structure setback
line f~r unimproved channels with exis:ing side slopes steeper
then 2.5: 1 (2.5 feet horizontal to 1 foot vertical) shall be
determined by measuring from the toe of slope a distance of two-
and-one-half times the ch~nnel depth plus 30 feet. The structure
setback line for unimproved channels ~ith existing side slopes of
2.5:1 or fl~tter shall be 30 feet meas~red from the top of bank.
(c )
line for
than 3: 1
:nined by
Chann8ls 20 feet deep and greater: the structure setback
unimp~oved channels with exis~ing side slopes steeper.
(3 feet horizontal to .1 foot vertical) shall be deter-
measuring from the toe of slope a distance of three times
~.:~
the channel depth plus .20 feet. The structure setback line for
unimproved channels with existing side slopes of 3:1 or flatter
shall be 20-feet measured from the top of bank.
(Ords. 85- 40 ~6, 78-5.)
~F.r.TT()N VTr. Section Q 1 4-10 _ 4M\ (")f t.hp. r.Cl1Jntv Ordinance Code is
repealed.
SECTION VIII. Section 914-10.410 of the County Ordinance Code is
renumbered and amended, to read:
914-10.408 Structures and landscaping within easements. No
permanent s tI'UC t ur es of any ki nd other than drai nage s true tures
may be constructed within OI' over any easement described in this
chapter. Landscaping, including trees and shrubs,. may be planted
within easements upon approval by the Public Works Department.
The structure setback line shall be verified prior to the issuance
of a building permit.
(Ords. 85- 40 ~~7, 8, 78-5.)
SECTION IX. Section 914-10.410 of the County Ordinance Code is
amended, to prohibit non-drainage structures within structure set-
back areas, to read:
914-10.410 Structures and landscaping within structure set-
back areas. No permanent structures of any kind other than
drainage structures may be constructed within, under or over any
structure setback area described in this chapter. Fencing and
landscaping, including trees and shrujs, are excluded from this
restriction.
(Ord. 85-'1-0 ~9.)
SECTION X. EFFECTIVE DATE. This ordinance becomes effective 30
days after passage, and within 15 days of passage shall be
published once with the names of supe;visors voting for and
against it in the MRr~ine7 NeMs GRZP~~p , a newspaper
published in this county.
PASSED on
June 4 1985
by ~he following vote:
AYES:
Supervi~or Powers, Schroder, McPeak, Torlakson and Fahden
NOES:
None
ABSENT: None
ABST A IN: None
ATTEST: PHIL BATCHELOR, Clerk of
the Board of Supervisors and
County Administrator
By
(t.~~ C ~l/'U Q ~ -~
Deputy
Board Chair
(
'l
(
)
(
l
a distance of three times the channel depth
plus twenty feet. The Structure setback line for
unimproved channels with existing side slopes
of 3: I or flatter shall be twenty feet measured
from the top of bank. (Ords. 85-40 ~ 6, 78-5).
914-10.408 Structures and landscaping
within easements. No permanent structures of
any kind other than drainage structures may
be constructed within or over any easement
described in this chapter._ Landscaping, including
trees and shrubs, may be planted within ease-
ments upon approval by the public works de-
partment. The structure setback line shall be
verifi.~d nrior to the bsuance ('If ." lWilding ~e:--
mH. (OrJs. 8540 ~} 7, d, 78-5).
914-10.410 Structures and 1andscapin~
within Structure setback areas. No permanent
structures of any kind ()ther than drainage
structur~s may be constructed within, under or
over any structure setback area described in this
chapter. Fencirl[ and landscaping, including
trees and sr-.rubs, are excluded from tnis restric-
tion. (Ord. 85-40 fi 9).
438-]
":.-\Sc:rlE:\TS
~:4- i 0....0&-;;1 I 4-1 0041 0
(Contra COlla County 1()"8S)
Article 914-10.6
Levees and Ponding Areas
914-10.602 Easements for levees and
ponding areas. All levees and all ponding areas
shall be completely contained within drainage
easements. (Ord. 78-5).
Chapter 914-12
MISCELLANEOUS
Article 914-12.2 Ponding Arells
Sections:
914-12.202 Ponding areas-When
permitted .
Article 914-12.4 Subdrainage
Sections:
914-12.402 Subdrainage-Where required.
Article 914-12.2
Ponding Areas
91 4-1 2.202 Ponding areas When
permitted. Disposal of storm water drainage by
means of ponding areas may be permitted only
with the approval of the public works
department, after study of the proposed disposal
basin topography and soil characteristics and
only where no other reasonable method of
disposal is feasible. (Ord. 78-5).
Article 914-12.4
Subdrainage
914-12.402 SUbdrainage - Where required.
Subdrain facilities shall be provided where
specified by the soil engineer controlling the
work and other areas where deemed necessary
by the county to prevent sliding or settlement of
the earth surface. Facilities will be required to
convey the subdrainage to an approved point of
discharge. (Ord. 78-5).
Division 916
WATER AND SEWERS
Chllpters :
916-2
916-4
Water
Sewers
MISCELLA;\iEOL'S
9 j 4.} 0.60: -~ ] 6...,40:
ChllPter 916-:
WATER
Sections:
916-2.002 Adequate supply.
916-2.002 Adequate supply. An adequate
approved Water supply system shall be provlued
to serve aU of the proposed subdivision. The ad-
visory agency shall b~ satisiied. based upon
evidence submitted. that the said system i~ ne!
likely to cause serious public health probkrr:s
and make findings pursuant to Section q4-~.80(,
concernmg the fullfillment of cons~ruction
requirements. Water supply systems requlnng
hClIlth officer's lIpflroval shall comply with
Chllpter 414-4 of this code. lards. ~t.56 ~ 5.
'78-5). .
Chapter 916-4
SEWERS
Article 916-4.2
Sections:
916-4.202
Article 916-4.4
Sewerage
Sewerage requirements.
Sani tary Sewers and Sewage
Treatment Plants
Sections:
91 6-4.402
Sewer system and sewage
treatment piant constructlon.
Article 916-4.2
Sewerage
916-4.202 Sewerage requirements. Sewt:ragt:
shall be provided to the suodlVlsion by a public
sanitation district or utility having adequate
plant and facilities. If, based on eVIdence
submitted, the advisory agency rInds that it is
not feasible to construct, install. or connect to a
sewerage system, it may refer any request for an
alternate means of sewage disposal to the county
health department. (Ord. 78-5).
Article 916-4.4
Sanitary Sewers and Sewage
Treatment Plants
916-4.402 Sewer system and sewage
treatment plant construction. In those areas
served by a sanitation distnct under the
439
(l'unltJI C(JIU Cuunllr ....lS!I:'
f~'~
(. )-
\,. . /'''--
, >1'
REQUIREMENTS
920-4.002
Chapter 920-4
REQUIREMENTS
Sections:
920-4.002
920-4.004
920-4.006
S ubdi visions.
Single parcel development.
Exemptions.
920-4.002 Subdivisions. As a condition of
approval of a preliminary or fmal development
plan, tentative or final map or parcel map
(which are hereinafter referred to as
440-1
(Contra Costa County 11-81)
STANDARDS FOR AREA AND FEES
development), the developer of land for
residential use, excluding that land which is
exempt as provided in the Subdivision Map Act,
shall dedicate land, pay a fee in lieu thereof, or
do a combination of both, for public park or
recreational purposes. (Ord. 78-5).
920-4.004 Single parcel development. As a
condition of approval of any permit to build a
principal residential structure, including but not
limited to a multiple family structure or trailer
(mobile home) park, an owner shall dedicate
land, pay a fee in lieu thereof, or do a
combination of both, for public park or
recreational purposes in accordance with the
same standards as if a final map or parcel map
were required. (Ord. 78-5).
920-4.006 Exemptions. Subdivisions
containing less than five parcels and not used for
residential purposes shall be exempted from the
requirements of this section; provided, however,
that if a building permit is requested for
construction of a residential structure or
structures on one or more of the parcels the fee
shall be required to be paid by the owner or
each such parcel as a condition to the issuance
of such permit. (Ord. 78-5).
Chapter 920-6
STANDARDS FOR AREA AND FEES
Sections:
920-6.002
920-6.004
Dedication.
Amount of fee.
920-6.002 Dedication. The total area
required to be dedicated shall be computed by
multiplying the number of dwelling units to be
included in the development by five hundred
square feet. As used in this division, "dwelling
unit" means a building or a portion thereof, or a
mo bile home, designed for residential
occupation by one person or a group of two or
more persons living together as a domestic unit.
(Ord. 78-5).
920-6.004 Amount of fee. When fees are to
be paid in lieu of land dedication, such fees shall
be three hundred dollars per dwelling unit. A
combination of fee payment and land dedication
is permissible if approved by the planning
agency. (Ord. 78-5).
920-4.004-920-8.004
Chapter 920-8
PRIVATE SPACE
Secti ons:
920-8.002
920-8.004
Partial credit for private
space.
Standards.
920-8.002 Partial credit for private space.
Where private area for park and recreational
purposes is provided in a proposed development
and such area is to be privately owned and
maintained by the future owner(s) of the
development, partial credit may be given by the
planning agency not to exceed fifty percent
against the requirement of land dedication or
payment of fees in lieu thereof if the planning
agency finds that it is in the public interest to do
so and that all the standards set forth in Section
920-8.004 are met. (Ord. 78-5).
920-8.004 Standards. The standards are:
(1) That yards, court areas, setbacks and
other open areas required to be maintained by
the zoning and building ordinances and
regulations shall not be included in the
computation of such private areas; and
(2) That the private ownership and
maintenance of the area is adequately provided
for by recorded written agreement, covenants or
restrictions; and
(3) That the use of the private area is
restricted for park and recreational purposes by
recorded covenants which run with the land in
favor of the future owners of property within
the tract and which cannot be amended or
eliminated without the consent of the county,
or its successor; and
(4) That the proposed private area is
reasonably adaptable for use for park or
recre;::.tional purposes, taking into consideration
such factors as size, shape, topography, geology,
access and location; and
(5) That facilities proposed for the area are in
substantial accordance with the provisions of the
recreational element of the general plan; and
(6) That the area for which credit is given is a
minimum of two contiguous acres and provides
a minimum of four of the local park basic
elements listed below, or other recreational
improvements that will meet the specific
recreation park needs of the future residents of
the area:
441
(Contra Costa County 3-15-78)
920-10.002-920-12.006
SUBDIVISIONS
Criteria List
(A) Children's play apparatus area
(B) Landscape park-like and quiet area
(C) Family picnic area
(D) Game court area
(E) Turf playfield
(F) Swim pool (42 ft. x 75 ft. with adjacent
deck and lawn area)
(G) Recreation center building
Acres
.50- .75
.50-1.00
.25- .75
.25- .50
1.00-3.00
.25- .50
.15- .25
(Ord.78-5).
Chapter 920-10
USE AND TIME LIMITS
Secti ons :
920-10.002 Use of land and fees.
920-10.004 Establishment and development
time.
920-10.006 Hold or transfer.
920-10.002 Use of land and fees. The land,
fees, or combination thereof are to be used only
for the purpose of providing park or recreation
facilities which will serve future residents of
such development; but if the county general
plan or a specific plan contemplates a larger or
more significant recreation development (such as
an area or community park) which will serve an
area including the development, the dedicated
land or fees may be devoted to such use. (Ord.
78-5).
920-10.004 Establishment and development
time. The planning agency, in agreement with
the local agency having park responsibility, if
available, shall assure the establishment and
development of the park and recreational
facilities as the area develops and such facilities
become necessary. (Ord. 78-5).
920-10.006 Hold or transfer. All land so
dedicated or fees paid shall be held by the
county only for such purpose, but the county
may transfer such land and/or fees to a local
agency having authority to provide park and
recreation services in the area. (Ord. 78-5).
(Contra Costa County 3-15-78)
Chapter 920-12
PROCEDURES
Sections:
920-12.002 General.
920-12.004 Decision-Factors.
920-12.006 Prerequisite for approval
of final map, parcel map,
or building permit.
920-12.008 Trust-Administration.
920-12.010 Agency for development
and maintenance.
920-12.012 Refunds.
920-12.014 Exemptions.
920-12.002 General. At the time of filing a
tentative map or other development for
approval, the developer shall, as a part of such
filing, indicate whether he prefers to dedicate
land for park and recreation purposes, or to pay
a fee in lieu thereof, or do a combination of
these. If he prefers to dedicate land, he shall
suggest the specific land. (Ord. 78-5).
920-12.004 Decision - Factors. At the time
of initial development approval, the planning
agency shall determine whether to require a
dedication of land within the development,
payment of a fee in lieu thereof, or a
combination of both. In making this
determination, the agency shall consider the
following factors:
(1) Lands offered for dedication will
substantially comply with the recreation
element of the general plan;
(2) The topography, soils, soil stablity,
drainage, access, location and general utility of
land in the development available for dedication;
(3) The size and shape of the development
and land available for dedication;
(4) How much land consisting of school
playgrounds or public park lands is available for
combination with dedicated lands in the
formation of local park and recreation facilities;
and
(5) The space or local recreation facilities to
be privately owned and maintained by future
residents of the development. (Ord. 78-5).
920-12.006 Prerequisite for approval of
final map, parcel map, or building permit. (a)
, Land. When land is to be dedicated, it shall be
offered for dedication in substantially the same
442
PLANNING COMMISSION AUTHORITY
manner as for streets and other easements.
(b) Fees. When a fee is required, it shall be
paid to the county prior to approval of the final
map, parcel map, or building permit, whichever
first occurs. Fees shall be placed in a local park
or recreation facilities trust fund. (Ord. 78-5).
920-12.008 Trust - Administration. The
land and fees shall be held in trust by the county
until the county transfers such responsibility to
a county service area, district, city, or
association. If the recreation element of the
general plan does not indicate the area of benefit
and contribution for the specific park required
to serve a development, an appropriate
amendment will be prepared to so delineate an
area, or a specific plan for such area may be
developed. (Ord. 78-5).
920-12.010 Agency for development and
maintenance. The planning agency shall
designate a public agency (city, service area,
district or other) to be responsible for
development and maintenance of the park. If no
such agency is available to assume such
responsibility, the planning agency shall require
the developer to annex to or to form an
appropriate agency, unless waived by the
planning agency. When such a public agency is
designated for the area, the land and fees may be
conveyed to such agency by the county for the
purposes herein enumerated. (Ord. 78-5).
920-12.012 Refunds. (a) If a final
subdivision map or parcel map is vacated, and if
the county still retains the land or fees, and if
the applicant so requests, the board may order
return to him of such land or fees.
(b) If a building permit is cancelled or
voided, and if the county still retains the fee,
and if the applicant so requests, the board may
order return to him of such fee. (Ord. 78-5).
920-12.014 Exemptions. A permit to repair
or rebuild a dwelling unit which was damaged by
fire, act of God, or other natural disaster, shall
be exempt from the provisions of this chapter if
the permit is applied for within one year of the
damage or destruction. (Ord. 78-5).
920-12.008-924-4.204
Division 924
REVERSION TO ACREAGE BY MAP
Chapters:
924-2
924-4
Planning Commission Authority
Procedure
Chapter 924-2
PLANNING COMMISSION AUTHORITY
Sections:
924-2.002 Map approval.
924-2.002 Map approval. The planning
comIlliSSlon is the delegated authority to
approve or disapprove maps in the form of a
final map or a parcel map which provide for the
reversion to acreage of land previously
subdivided. (Ord. 78-5).
Chapter 924-2
PROCEDURE
Article 924-4.2 Maps
Sections:
924-4.202
924-4.204
924-4.206
924-4.208
924-4.210
924-4.212
924-4.214
Filing.
Street and easement designation.
Bond, fee required.
Hearing.
Planning commission action.
Certification.
Filing for resubdivision.
Article 924-4.2
Maps
924-4.202 Filing. After a prefiling
conference with the planning department and
the public works department, twelve copies of
maps providing for reversion to acreage shall be
filed with the planning commission and shall be
in the form of a final map or parcel map,
dependent upon which was used to file the
original subdivision. (Ord. 78-5).
924-4.204 Street and easement designation.
Such a map shall delineate any streets or
443
(Contra Costa County 3-15-78)
924-4.206-924-4.2 I 4
SUBDIVISIONS
easements to be left in effect after the reversion
to acreage. (Ord. 78-5).
924-4.206 Bond, fee required. Any map so
submitted shall be accompanied by:
(1) A guarantee of title in the amount of one
thousand dollars for the benefit of the county,
issued by a recognized title insurance company;
(2) Evidence of nonuse of streets or
easements; and
(3) A filing fee as established or adopted by
the board of supervisors from time to time by
resolution, no part of which shall be refundable.
(Ord. 78-5).
924-4.208 Hearing. The planning
commISSIOn shall conduct its hearing in
accordance with requirements of Government
Code Sections 66499.11 through 66499.20-1/2.
(Ord. 78-5).
924-4.210 Planning commission action. The
planning commission shall act upon the map
within forty calendar days after its next regular
meeting, or such other time as mutually agreed
upon by the subdivider and planning
commission or the map shall be deemed
disapproved unless the planning commission
expressly continues the matter. (Ord. 78-5).
924-4.212 Certification. The map shall be
certified by the county surveyor as required by
the Subdivision Map Act. The provisions and fee
for map checking as set forth in Section
94-4.602 shall be applicable to checking
reversion to acreage maps prior to certification.
(Ord.78-5).
924-4.214 Filing for resubdivision. A
tentative map for resubdivision may be filed
concurrently with the aforesaid reversion map.
(Ord.78-5).
(Contra Costa County 3-15-78)
444/454
PROCEDURES
920-12.014
were paid, and if the person who paid the fee so
requests, the fees still held by the county under
Section 920-12.008 will be refunded if
development of park facilities are not then
provided for.
(b) If a final subdivision map, development
plan, use permit or building permit becomes
invalid because of lapse of time or other legal
reason within two years after dedication of land
or payment of in lieu fees, and if the county still
retains the land or fees, and if the applicant so
requests, the board may order return to him of
such land or fees as the county still retains
control of, minus such amount as the board may
determine necessary to reimburse the county for
its costs. (Ord. 73-63 @ I, 1973: Ord. 71-84 @ I
(part), 1971).
920-12.014 Exemptions. (a) All those
subdivisions, plans or other developments which
had received approval after October 30, 1970,
and prior to October 30, 1971, shall be exempt
from the provisions of this chapter, provided
that the approvals remain in force after October
30, 1971.
(b) A permit to repair or rebuild a dwelling
unit which was damaged by fire or act of God
shall be exempt from the provisions of this
chapter if the permit is applied for within one
year of the damage or destruction. (Ord. 72-67 @
I, 1972).
444-1
(Contra Costa County 9.15.73)
Division 922
MINOR SUBDIVISIONS
Chapters:
922- 2 General Provisions
922-4 Parcel Map
Chapter 922-2
GENERAL PROVISIONS
Article 922-2.2
Sections:
922- 2.202
922-2.204
922- 2.206
Article 922-204
Sections:
922-2.402
922-2.404
Application
Application -Contents.
Application-Form.
Application-Fee.
Zoning Administrator Action
Zoning administrator-Hearing.
Zoning administrator-
Consideration of application.
Article 922-2.6 Time Limit
Sections:
922-2.602 Time limit-Expiration.
Article 922- 2.8 Conditional Use Permit
Sections:
922-2.802
Conditional use permit-
Standards.
Appeal
Article 922- 2.10
Sections:
922-2.1002 Appeal-Procedure.
Article 922-2.12 Exceptions
Sections:
922- 2.1202 Exceptions-Generally.
922-2.1204 Exceptions-Lot division
restriction.
922-2.1206 Exceptions-Lot access to
street.
922- 2.1208 Exceptions-When dedication
not required.
922- 2.121 0 Exceptions-Lot compliance
required.
Article 922- 2.14 Miscellaneous
Sections:
922- 2.1402
922-2.1404
Building permit issuance.
Voidable sales and
transfers.
GENERAL PROVISIONS
922-2.202-922-2.204
Article 922-2.2
Application
922-2.202 Application - Contents. If an
applicant proposes to divide a parcel into four or
less lots, an application for exception from the
requirements of this title may be made to the
planning department. The application shall
specifically set forth each item upon which an
exception is requested. The application, in
addition to other matters that may be required
by that department, shall contain nine copies of
a minor subdivision map containing the
following information:
(1) 'The parcel being divided, clearly and
legibly drawn on one sheet to a standard
engineers' scale (e.g.) 1 in. = 40 ft., I in. = 50 ft.,
1 in. = 60 ft., I in. = 100 ft.;
(2) Perimeter description of the entire parcel,
together with intersecting property lines,
abutting public and private roads, easement and
drainage installation adjoining the parcel;
(3) A vicinity sketch showing roads,
adjoining subdivision, towns, creeks, railroads
and other data sufficient to locate the proposed
subdivision and to show its relation to the
surrounding area;
(4) North arrow and scale of map;
(5) All existing buildings and structures and
the approximate locations of other
improvements, existing contours, easements,
drainage channels and other structures, and
general direction of flow of storm waters;
(6) Names of adjacent property owners (not
applicant);
(7) File number to be issued by the planning
department when application is submitted;
(8) The proposed layouts of streets and lots,
the lot numbers and the areas of the lots shown
on the map. (Ord. 67-19 ~ I (part), 1967: prior
code ~ 8490(a)).
922-2.204 Application Form. The
application form, to be completed at the
planning department, shall contain the following
information:
(I) Names, addresses and phone numbers of
applicants and owners;
(2) The method of sewage disposal and
source of water supply;
(3) Each item for which a variance is
requested and the specific reasons for the
request. (Ord. 67-19 ~ I (part), 1967: prior code
~ 8490(b)).
445
(Contra Costa County 9-15-77)
922- 2.206-922-2.1402
SUBDIVISIONS
922-2.206 Application Fee. The
application fee is specified in Article 26-2.28
and shall be paid with the application. (Ord.
7~2 ~ 6, 1974: Ord. 67-19 ~ 1 (part), 1967:
prior code ~ 8490(c)).
Article 922-2.4
Zoning Administrator Action
922-2.402 Zoning administrator - Hearing.
The zoning administrator shall hear the minor
subdivision map within forty working days after
filing of the minor subdivision map and shall
render a decision within thirty calendar days
unless these time limits have been waived or the
map under consideration is being considered in
conjunction with or is conditioned upon the
obtaining of a necessary zoning variance,
rezoning or the approval of a final development
plan. In the event the map is disapproved, such
report shall set forth the basis of disapproval.
(Ords. 77-33 ~ 16, 67-19 ~ 1: prior code ~
8490.1 (a)).
922-2.404 Zoning administrator
Consideration of application. The zoning
administrator shall consider the application of
the subdivider for exceptions to provisions of
this title and any zoning variances. (Ords. 77-33
~ 16, 67-19 ~ 1: prior code ~ 8490.1 (b )).
Article 922-2.6
Time Limit
922-2.6-2 Time limit - Expiration. The
approval of the zoning administrator of any
exceptions or variances shall expire within one
year of the date of approval unless a parcel map
has been filed with the recorder as provided in
this division. Upon request, the director of
planning may grant a one-year extension of
time. (Ords. 77-33 ~ 16, 67-19 ~ 1: prior code ~
8490.2).
Article 922-2.8
Conditional Use Permit
922-2.802 Conditional use permit
Standards. The applicant must present adequate
evidence to meet the burden of proof required
by Section 26-2.2008. COrd. 67-19 ~ 1 (part),
1967: prior code ~ 8491).
(Contra Costa County 9-15-77)
Article 922-2.10
Appeal
922-2.1002 Appeal - Procedure. Appeals
from the decision on exception or variances in
minor subdivision map considerations shall be in
accordance with Sections 26-2.2404(b) (c) and
26-2.2406 as a conditional use. (Ord. 67 -19 ~ 1
(part), 1967: prior code ~ 8492).
Article 922-2.12
Exceptions
922-2.1202 Exceptions - Generally. If all
of the conditions set forth in Sections
922-2.1204 through 922-2.1210 are met by the
application, the zoning administrator may grant
an exception from the requirement of
submitting a minor subdivision map. (Ords.
77-33 ~ 17, 67-19 ~ 1: prior code ~ 8493).
922- 2.1204 Exceptions Lot division
restriction. No more than two lots are proposed
to be created and each of such lots cannot be
further divided under the existing zoning
classifications. (Ord. 67-19 ~ 1 (part), 1967:
prior code ~ 8493(a)).
922-2.1206 Exceptions - Lot access to
street. Both lots, after division, will front on or
have access to a public or dedicated street. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8493(b)).
922-2.1208 Exceptions - When dedication
not required. Dedication is not required for
widening, extending or creating a street. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8493(6)).
922-2.1210 Exceptions - Lot compliance
required. The lots created will, in all other
respects, comply with legal requirements. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8493(d)).
Article 922-2.14
Miscellaneous
922-2.1402 Building permit issuance. No
building permit shall be issued for a new
structure on a lot or parcel created after June 8,
1967, unless such lot or parcel was created in
accordance with the provisions of this title. Lots
or parcels created prior to June 8, 1967, which
were created in violation of the county code
shall be subject to approval as herein provided
446
prior to issuance of a building permit. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8498).
922-2.1404 Voidable sales and transfers.
Any deed of conveyance, sale or contract to sell
446-1
GENERAL PROVISIONS
922-2.1404
(Contra Costa County 9-15-77)
made in violation of or contrary to the
provisions of this title is voidable to the extent
and in the same manner provided in Section
11540 of the Business and Professions Code of
the state of California. (Ord. 67-19 ~ 1 (part),
1967: prior code ~8499).
Chapter 922-4
PARCEL MAP
Article 922-4.2 General
Sections:
922-4.202 Filing.
922-4.204 Conformance requirements.
Article 922-4.4 Contents
Sections:
922-4.402 Contents-Designation of ties
to street centerlines, etc.
922-4.404 Contents-Boundary
designation.
922-4.406 Contents-Certificate for
surveyor's signature.
922-4.408 Contents-Title sheet.
922-4.410 Contents-Affidavits,
certificates, endorsements,
seals.
922-4.412 Contents-Scale, north point,
basis of bearing.
922-4.414 Contents-Easement
designation.
922-4.416 Contents-Linear, angular
and radial data.
922-4.418 Contents-Designation of
adjoining subdivisions.
9224.420 Contents-City boundaries
crossing or joining
subdivisions.
922-4.422 Contents-Printing and
lettering.
Article 922-4.6 Supplementary Documents
Sections:
922-4.602 Supplementary documents-
Types required for county
road improvements.
922-4.604 Supplementary documents-
Types required for private
road improvements.
922-4.606 . Supplementary documents-
Dedication instrument.
Article 922-4.8 Improvement Plans
Sections:
922-4.802 Improvement plans-Existing
public road or drainage.
PARCEL MAP 922-4.202-922-4.402
922-4.804
922-4.806
922-4.808
Improvement plans-Private
road requirements.
Improvement plans-
Application of standards.
Improvement plans-Time
limits.
Improvement plans-Appeals.
Checking and Approval
922-4.810
Article 922-4.10
Sections:
922-4.1002 Checking-Print requirements.
922-4.1004 Checking-Error of closure
in traverse.
922-4.1006 Checking-Public works
department action.
922-4.1008 Approval-Submission to
public work department.
922-4.1010 Approval-Presentation for
filing.
922-4.1012 Approval-Filing time limit.
922-4.1014 Approval-Evidence of title.
Article 922-4.12 Fees
Sections:
922-4.1202
922-4.1204
922-4.1206
Fee-Checking.
Fee- Recording.
Fee-Inspection.
Article 922-4.2
General
922-4.202 Filing. The parcel map shall be
filed for minor subdivisions and shall be
prepared from field survey by a registered civil
engineer or licensed land surveyor, except when
parcels greater than ten acres are created, the
map may be drawn from record data only. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8494
(part)).
922-4.204 Conformance requirements. The
parcel map shall conform to all the provisions of
Sections 922-4.202 - 922-4.422 and the
provisions of Section 11576, 11577, 11579 and
11580 of the Business and Professions Code.
(Ord. 67-19 ~ 1 (part), 1967: prior code ~ 8494
(part)). '
Article 922-4.4
Contents
922-4.402 Contents - Designation of ties to
street centerlines, etc. The parcel map shall show
ties to the centerline of streets or property lines
bounding the property, required street widening,
the proposed or adopted highway setback lines,
447
922-4.404~922-4.420
SUBDIVISIONS
and other information required as a condition of
approval. (Ord. 67-19 ~ 1 (part), 1967: prior
code ~ 8494(a)).
922-4.404 Contents Boundary
designation. The boundary of the minor
subdivision shall be designated by an opaque red
line applied over India ink in such a manner as
not to obliterate the figures or other data. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8494(b)).
922-4.406 Contents Certificate for
surveyor's signature. The engineer or land
surveyor presenting the map for checking and
recording shall affix the certificate for the
county surveyor's signature to the title sheet in
conformance with Section 11576 of the
Business and Professions Code. (Ord. 67-19 ~ 1
(part), 1967: prior code ~ 8494(c)).
922-4.408 Contents - Title sheet. The title
sheet shall contain the minor subdivision
number conspicuously placed at the top of the
sheet and location of the property being
subdivided with reference to maps which have
been previously recorded, or by reference to a
plat of the United States Survey. In case the
property included within the subdivision lies
who1e1y in unincorporated territory, the
following words shall appear on the title: "In
the County of Contra Costa:." If partly in
unincorporated territory and partly within an
incorporated city, the following words shall be
used: "Lying within the County of Contra Costa
and partly within the City of . . . . . ." (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8494(d)).
922-4.410 Con ten ts Affidavits,
certificates, endorsements, seals. Affidavits,
certificates, acknowledgements, endorsements,
and the notarial seals r:equiredby law and this
title shall appear only once on the title sheet.
The above certificates, etc., may be printed
thereon with opaque ink or by photographic
reproduction. If more than three sheets are used,
a key diagram shall be included on the first
sheet. (Ord. 67-19 ~ 1 (part), 1967: prior code ~
8494(e)).
922-4.412 Contents - Scale, north point,
basis of bearing. There must appear on each map
sheet the scale, the north point and the basis of
bearing. The scale shall be forty feet, fifty feet
or sixty feet to the inch. The basis of bearings
shall be that approved by the public works
department and the map shall show the equation
of bearings to the true north. (Ord. 67-19 ~ 1
(part), 1967: prior code ~ 8494(f)).
922-4.414 Contents Easement
designation. (a) Easements for an existing or
proposed utility installation for the use of a
private or nongovernmental agency shall not be
shown on the map unless there is a recorded
conveyance to such individual or corporation
except as is provided, in the subsection (c).
(b) All easements of records shall be shown
on the map together with the name of the
grantee and sufficient recording data to identify
the conveyance, that is, recorder serial number
and date or book and page of county records.
(c) Easements not disclosed by the records in
the office of the county recorder and found by
the surveyor or engineer to be existing, shall be
specifically designated on the map, identifying
the apparent dominant tenements for which
were created.
(d) The sidelines of all such record easements
shall be shown by dashed lines on the final map
with the widths, lengths and the bearings
thereof, in figures, if available, from the record.
(Ord. 67-19 ~ 1 (part), 1967: prior code ~
8494(g) (i)).
922-4.416 Contents - Linear, angular and
radial data. Sufficient linear, angular, and radial
data shall be shown to determine the bearings
and lengths of the boundary lines of the
subdivision and of the boundary lines of every
lot and parcel which is a part thereof. Length,
radius, and total central angle or radial bearings
of all curves shall be shown. (Ord. 67-19 ~ I
(part), 1967: prior code ~ 8494(h)).
922-4.418 Contents Designation of
adjoining subdivisions~ The adjoining corners of
all adjoining subdivisions shall be identified by
subdivision number or name, and reference to
the book and page of the recorder's map
showing such subdivision; and if no such
subdivision is adjacent, then by the name of the
owner and reference to the recorded deed by
book and page number for the last recorded
owner of such adjacent property. (Ord. 67-19 ~
1 (part), 1967: prior code ~ 8494(j)).
922-4.420 Contents City boundaries
crossing or joining subdivisions. City boundaries
448
which cross or Jom the subdivision shall be
clearly designated. The location and description
of all existing and proposed monuments shall be
shown. (Ord. 67"'19 ~ I (part), 1967: prior code
~ 8494(k)).
922-4.422 Contents Printing and
lettering. All printing or lettering on the map
shall be of one-eighth inch minimum height and
of such shape and weight as to be readily legible
on prints and other reproductions made from
the original drawings. (Ord. 71-19 ~ 9, 1971:
Ord. 67-19 ~ I (part), 1967: prior code @
8494(1)).
Article 922-4.6
Supplementary Documents
922-4.602 Supplementary documents
Types required for county road improvements.
Where conditions of filing of the parcel map
require improvements on existing county roads
or on roads to be accepted for maintenance by
the county, the following documents shall
accompany the parcel map when presented to
the public works department:
(1) Subdivision agreement to be executed by
the subdivider or his agent guaranteeing the
completion of construction of improvements
required by the governing body within a
specified time, and payment thereof;
(2) A cash deposit of not less than five
hundred dollars together with such additional
surety, either cash deposit or acceptable surety
bond equivalent to the estimated cost of the
construction of the improvements, guaranteeing
performance of work, payment of labor and
materials, and any other claims that may arise as
a result of the improvement work as set forth in
the subdivision agreement;
(3) Cash payment or receipt thereof of all
fees required for the checking and filing of the
maps, inspection of the construction, payment
for street signs to be furnished and installed by
the county, and any other applicable fees or
deposits;
(4) Deeds conveying easements or fee
required for road or drainage purposes. Written
evidence acceptable to the county in the form of
rights of entry or permanent easements across
private property outside of the subdivision
permitting or granting access to perform
necessary construction work and permitting the
maintenance of the required facility;
PARCEL MAP
922-4.422-922-4.604
(5) Agreements, acceptable to the county
where road improvements are to be accepted by
the county, executed by all owners of all
existing utility and other easements within the
proposed rights-of-way, consenting to the
dedication of the road or consenting to the joint
use of the right-of-way, as may be required by
the county for the public use and convenience
of the road. These owners shall join in the
dedication and subordinate their rights, to the
right of the public in the road;
(6) Parcel Map Improvement Plan in
accordance with Section 922-4.802. (Ord.71-19
@ 10, 1971: Ord. 69-23 @ I, 1969: Ord. 67-19 @
I (part), 1967: prior code @ 8494.1 O(a)).
922-4.604 Supplementary documents
Types required for private road improvements.
Where the conditions of the filing of the pa~cel
map require improvement of a private rohd,
which is to remain a private road, the following
shall be submitted to the building inspector:
(1) Four copies of parcel map improvement
plan in accordance with Section 944-4.804
showing the 'required improvements and any
other topographical features affecting the
improvements;
(2) An inspection fee of twenty-five dollars
for the first lot and fifteen dollars per lot for
each additional lot within the subdivision;
(3) After approval of the plans, but prior to
the sale of any lot, filing of a parcel map, or
issuance of any building permit, the installation
of improvements shall be completed and the
work approved by the building inspector, or an
agreement secured by a cash deposit or a
corporate surety bond in the amount of the
estimated cost of the improvements shall be
executed to assure completion of the
improvements within one year of the date of
approval.
(A) DISPOSITION OF CASH BOND: If cash
has been deposited as security and because of
failure in the performance of any term. or
condition notice of default has been given, the
principal shall comply with the notice within the
time specified. In the event the work is vot
completed within the time specified, the
building inspector may use the deposited cash to
have the required work done by contract or
other means as determined by the building
inspector. The balance, after deducting the cost
of the work plus ten percent for supervision,
shall be returned to the principal. If the deposit
449
922-4.606-922-4.808
SUBDIVISIONS
is insufficient, the principal shall be liable for
any deficiency.
(B) RIGHT OF ENTRY: In the event of
default in performance of any term or condition
of the permit, the surety or his agent, the
building inspector or any person employed or
engaged by him shall have the right to go on the
premises to complete the required work or make
it safe.
No person shall interfere with or obstruct the
egress to or from the premises by any authorized
representative or agent of any surety or of the
county engaged in completing the work required
by the agreement or in complying with the
terms or conditions of the pernlit.
(C) TERM OF SURETY BOND
COMPLETION: The term of each bond shall
begin on the date of its posting and shall end on
the satisfactory completion of the terms and
conditions of the agreement. Completion shall
be evidenced by a certificate of completion, a
copy of which shall be sent to any surety on
request. (Ord. 67-19 ~ 1 (part), 1967: prior code
~ 8494.1O(b)).
922-4.606 Supplementary documents
Dedication instrument. Where dedication is
required for creating or improving a street or
future street, for an easement for storm or
sanitary sewers, or for public utility purposes,
and the filing of a subdivision is not required,
dedication shall be by separate instrument,
pursuant to Business and Professions Code
Section 11535(d), presented to the public works
department for submission to the board for
approval and recordation prior to filing the
parcel map. Recording information pertaining to
any such instruments shall be indicated on the
parcel map prior to approval for filing. (Ord.
71-19 ~ 11, 1971: Ord. 67-19 ~ 1 (part), 1967:
prior code ~ 8494.10(c)).
Article 922-4.8
Improvement Plans
922-4.802 Improvement plans - Existing
public road or drainage. When improvements are
required by the board of zoning adjustment for
existing public road or drainage, improvement
plans shall be submitted to the public works
department for review and approval.
Improvement plans, standards, and inspection
fees conform to the requirements to this title
unless a specific exception is granted by the
board of zoning adjustment. Before a lot is sold,
parcel map filed or a building permit issued, the
improvements will either be completed or an
agreement executed with the county to
complete the improvements within one year.
Agreement will be secured by a bond in the
amount of estimated costs of improvement.
Improvement plans shall comply with Divisions
96 - 918. (Ord. 67-19 ~ 1 (part), 1967: prior
code ~ 8495(a)).
922-4.804 Improvement plans - Private
road requirements. When private roads are
required by the board of zoning adjustment,
such private roads shall meet the following
minimum requirements:
(1) Pavement width shall be sixteen feet.
(2) Pavement structural section shall not be
less than six inches base rock and one and
one-half inches asphaltic concrete.
(3) Right-of-way width shall be twenty-five
feet.
(4) Private street construction methods shall
comply with Section 92-8.004.
(5) A paved turn-around area shall be
provided at the end of any private road serving
more than two lots. The radius for the edge of
the pavement shall be thirty-five feet. Alternate
turn-around provisions may be approved if
adequate paved area is provided to
accommodate normal residential traffic.
(6) Street grades shall conform to the minor
street standards as outlined in Sections 98-6.002
- 98-6.012.
(7) Adequate drainage improvements shall be
provided in such a manner as to protect from
damage, both the roadway section and all
adjoining property. (Ord. 67-19 ~ 1 (part),
1967: prior code ~ 8495(b)).
922-4.806 Improvement plans
Application of standards. The requirements and
standards specified in this title shall apply to all
improvements. (Ord. 67-19 ~ 1 (part), 1967:
prior code ~ 8495(c)).
922-4.808 Improvement plans Time
limits. Required improvements shall be
constructed within one year of approval of the
minor subdivision map.
An additional period of one year may be
granted by the building inspector's office where
extenuating circumstances exist that prevent the
completion of the improvements. If the
450
improvements are not completed within the
time allowed, the county may on approval of
the board of supervisors use the money from the
cash depositor enforce the surety bond to
accomplish the completion of the improvements
in accordance with the improvement plan on
file. (Ord. 67-19 ~ 1 (part), 1967: prior code ~
8495(d)).
922-4.810 Improvement plans - Appeals.
Appeal may be made as provided in Sections
26-2.2402 - 26-2.2406. (Ord. 67-19 ~ 1 (part),
1967: prior code ~ 8495(e)).
Article 922-4.10
Checking and Approval
922-4.1002 Checking - Print requirements.
The subdivider shall submit two sets of prints of
the map and certificate sheets to the public
works department for checking purposes before
filing the map. The preliminary checking prints
shall be accompanied by a current preliminary
title report, furnished by the applicant and
acceptable to the public works department.
(Ord. 71-19 ~ 12, 1971: Ord. 67-19 ~ 1 (part),
1967: prior code ~ 8496(a) (1)).
922-4.1004 Checking - Error of closure in
traverse. The error of closure in traverse in the
subdivision and around the interior lots or
blocks shall not exceed one part in twenty
thousand. (Ord. 67-19 ~ 1 (part), 1967: prior
code ~ 8496(a) (2)).
922-4.1006 Checking Public works
department action. The public works
department within ten working days shall note
any errors or omissions, if any, on one set of the
preliminary prints and return them to the
engineer or surveyor for final revision of the
maps. (Ord. 67.:-19 ~ 1 (part), 1967: prior code ~
8496(a) (3)).
922-4.1008 Approval Submission to
public works department. The original tracing of
the parcel map of the subdivision, prepared in
accordance with Sections 922-4.202
922-4.422 shall be submitted to the public
works department for approval and transmitted
to the recorder for filing. (Ord. 67-19 ~ 1 (part),
1967: prior code ~ 8496(b) (1)).
922-4.1010 Approval - Presentation for
PARCEL MAP
922-4.810-922-4.1206
filing. The parcel map shall be accepted for filing
by the public works department when the map
and all of the required supplementary
documents and fees have been presented and
approved. The public works department, within
ten working days following receipt, shall present
the parcel map to the recorder for f":11ing. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8496(b)
(2)).
922-4.1012 Approval - Filing time limit.
The time limit for filing the parcel map shall be
one year from the date of the approval of the
minor subdivision map by the board of zoning
adjustment, unless an extension of time is
granted as provided in Section 922-2.602. (Ord.
67-19 ~ 1 (part), 1967: prior code ~ 8496(c)).
922-4.1014 Approval - Evidence of tit1~.
The subdivider shall present to the recordet,
evidence of titJe required by the subdivision map
act. (Ord. 67-19 ~ 1 (part), 1967: prior code ~
8496(d)).
Article 922-4.12
Fees
922-4.1202 Fee - Checking. The parcel
map when submitted for checking shall be
accompanied by a checking fee of twenty-five
dollars. (Ord. 67-19 ~ 1 (part), 1967: prior code
~ 8497(a)).
922-4.1204 Fee Recording. After
approval of the parcel map and .prior to the
signing of the certificate on the title sheet, a
recording fee of five dollars plus two dollars per
each additional sheet shall be deposited with the
public works department. (Ord. 67-19 ~ I
(part), 1967: prior code ~ 8497(b)).
922-4.1206 Fee Inspection. Where
improvement of an existing public road or
construction of a public road is a condition of
filing of the parcel map, prior to commencement
of construction an inspection fee of five percent
of the cost of such improvements based on ~n
approved estimate of their costs shall be
deposited with the public works department.
(Ord. 72-34 ~ 1, 1972: Ord. 67-19 ~ 1 (part),
1967: prior code ~ 8497(c)).
451
924-2.002-924-4.402
SUBDIVISIONS
Division 924
REVERSION TO ACREAGE BY MAP
Chapters:
924-2 Planning Commission Authority
924-4 Procedure
Chapter 924-2
PLANNING COMMISSION AUTHORITY
Sections:
924- 2.002 Map approval.
924-2.002 Map approval. The planning
commission is the delegated au thority to
approve or disapprove maps in the form of a
final map that provides for a reversion to acreage
of land previously subdivided. (Ord. 68-67 ~ 1
(part), 1968: Ord. 67-19 ~ 1 (part), 1967: prior
code ~ 8499.5(a)).
Chapter 924-4
PROCEDURE
Article 924-4.2 Final Maps
Sections:
924-4.202 Final map-Filing.
924-4.204 Final map-Street and
easement designation.
924-4.206 Final map-Bond, fee
required.
924-4.208 Final map-Hearing.
924-4.210 Final map-Planning
commission action.
924-4.212 Final map-Certification.
Article 924-4.4 Tentative Maps
Sections:
924-4.402 Tentative map-Filing.
Article 924-4.2
Final Maps
924-4.202 Final map - Filing. After a
prefiling conference with the planning
department and the public works department,
maps providing for reversion to acreage shall be
filed with the planning commission and shall be
in the form of a final map. (Ord. 68-67 ~ I
(part), 1968:0rd. 67-19 ~ I (part), 1967: prior
code ~ 8499.5(b) (I)).
924-4.204 Final map - Street and.easement
designation. Such a map shall delineate any
streets or easements to be left in effect after the
reversion to acreage. (Ord. 68-67 ~ 1 (part),
1968: Ord. 67-19 ~ 1 (part), 1967: prior code ~
8499.5(b) (2)).
924-4.206 Final map - Bond, fee required.
Any map so submitted shall be accompanied by:
(1) A guarantee of title in the amount of one
thousand dollars for the benefit of the county,
issued by a recognized title insurance company;
(2) Evidence of nonuse of streets or
easements; and
(3) A filing fee of twenty-five dollars, no part
of which shall be refundable. (Ord. 68-67 ~ ]
(part), 1968: Ord. 67-19 ~l (part), 1967: prior
code ~ 8499.5(b) (3)).
924-4.208 Final map - Hearing. The
planning commission shall conduct its hearing in
accordance with requirements of the Business
and Professions Code, Section 1 I 537(b). (Ord.
68-67 ~ I (part), 1968: Ord. 67-19 ~ I (part),
1967: prior code ~ 8499.5(b) (4)).
924-4.210 Final maps Planning
commission action. The planning commission
shall act upon the map within forty days after
its next regular meeting, or the map shall be
deemed disapproved unless the commission
expressly continues the matter. (Ord. 68-67 ~ I
(part), 1968: Ord. 67-19 ~ 1 (part), 1967: prior
code ~ 8499.5(b) (5)).
924-4.212 Final map - Certification. The
map shall be certified by the county surveyor as
required by the Business and Professions Code.
The provisions and fee for map checking as set
forth in Section 94-4.602 shall be applicable to
checking reversion to acreage maps prior to
certification. (Ord. 71-19 ~ 13,1971: Ord.
68-67 ~ 1 (part), 1968: Ord. 67-19 ~ I (part),
1967: prior code ~ 8499.5(b) (6)).
Article 924-4.4
Tentative Maps
924-4.402 Tentative map - Filing. A
tentative map for resubdivisionmay be filed
452
PROCEDURE
concurrently with the aforesaid map. (Ord.
68-67 ~I (part), 1968: Ord. 67-19 ~ I (part),
1967: prior code ~ 8499.5(b) (7)).
453
924-4.402