HomeMy WebLinkAboutASRBAC20221128 - 06.1
BICYCLE ADVISORY COMMISSION
STAFF REPORT 6.1
TO: Bicycle Advisory Commission November 28, 2022
SUBJECT: Status Update and Review of Preliminary Plans for CIP C-055, Diablo Road
Trail
BACKGROUND
The Town’s vision to develop a continuous multi-use path along the Diablo Road corridor
is reflected in each of Danville’s key planning documents over the past three decades,
tracing back to the Danville 2005 General Plan, (adopted in 1987) and Townwide Trails
Master Plan (adopted in 1989). In each of these policy documents, the objective of
developing a multi-use path along the corridor is clear while the exact alignment remained
undetermined. Potential alignment options ranged from on-road bicycle lanes to a grade-
separated off-road trail. Given right-of-way constraints in the corridor, all options
necessitate a dedication of land from the Magee property located on the south side of
Diablo Road.
Ultimately, in 2018, the Town completed the Diablo Road Trail Feasibility Study that
provided an analysis of several trail alignment options in preparation of the Environmental
and Design phases of the project. Currently, the Diablo Road Trail Project (Capital
Improvement Program Project No. C-055) is nearing completion of the Environmental
phase and will be proceeding to the Final Design phase through late Winter 2023, with the
goal to begin the Construction phase in summer/fall of 2023. The total estimated project
cost is approximately $5.7M and is fully funded in the 2022/23 Five-Year Capital
Improvement Program.
DISCUSSION
The Diablo Road Trail Project, CIP C-055 consists of the design and construction of an 8-
foot-wide, off-street paved multi-use path with two-foot gravel shoulders that will traverse
along the southern shoulder of Diablo Road and feature a signalized pedestrian and bicycle
roadway crossing at the intersection of Diablo Road/Fairway Drive. The project site is
located immediately north of East Branch Green Valley Creek and property belonging to
the Magee Cattle Ranch, and south of single-family residential uses. When completed, the
project will provide a 0.9-mile, Class I mixed-use path for pedestrians and cyclists that will
connect the Diablo Road/Green Valley Road corridor to the west to Blackhawk Road/Mt.
Diablo State Park South Gate access to the east. The project is located within the Town of
Danville and public right of way (ROW) and on easements obtained from private property
owners.
The west end of the project will terminate at the intersection of Fairway Drive and Diablo
Road connecting to the existing 0.5-mile Diablo Road (aka “Barbara Haile”) Trail, and as
previously described, will feature a signalized crossing connecting the new path on the
south side of Diablo Road to the existing path on the north side of Diablo Road.
The east end of the Town-constructed portion of the project will terminate approximately
400 feet west of the intersection of Avenue Nueva and Diablo Road. The facility will
continue east by connecting with a new, 0.7-mile paved path segment that is currently
under construction as part of the Magee Preserve Development. When completed, the new
path segments will provide a contiguous, 2.1-mile Class I facility connecting the Diablo
Road/Green Valley Road intersection (west limits) with Blackhawk Road (east limits), as
previously described (Figure 1).
Figure 1 – Diablo Road Trail Alignment Map
Current Status
As described, the Diablo Road Trail Project is nearing completion of the Environmental
Phase. A Notice of Public Review Period and Intent To Adopt A Mitigated Negative
Declaration of Environmental Significance was released on October 3, 2022, with a deadline
for comments due November 17, 2022. Subsequently, the State of California Natural
Resources Agency has requested an extension on the comment period to November 30,
2022, of which has been granted by staff. Ultimately, consideration of approval of the
Mitigated Negative Declaration and Environmental clearance will be scheduled for an
upcoming Town Council meeting in early 2023.
Preliminary Plan Review
With the pending completion of the Environmental phase, work on Final Design will
commence and is expected to be completed in Winter/Spring 2023. Throughout the Final
Design process, staff will be providing opportunities for Town Council and Commissions
to review and provide comment, and as directed. At this time, preliminary alignment and
elevation plans prepared by staff are being provided for the Commission’s review and
comment (Attachment A). Project updates and plan revisions will continue to be shared
at future Commission meetings as they become available. Additionally, current updates
on the project are provided on the Town of Danville
(https://www.danville.ca.gov/853/Diablo-Road-Trail) and Danville Town Talks website
(https://danvilletowntalks.org/diablo-road-trails-project).
Attachment A – Diablo Road Trail Preliminary Alignment and Elevation Plans
D
I
A
B
L
O
R
O
A
D
A
L
A
M
E
D
A
D
I
A
B
L
O
D
I
A
B
L
O
R
O
A
D
D
I
A
B
L
O
R
O
A
D
D
I
A
B
L
O
R
O
A
D
PRELIMINAR
Y
P
L
A
N
S
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
T
I
T
L
E
S
H
E
E
T
SCALE:1" = 10'FEET 0 10 2040
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
(
P
H
A
S
E
#
2
)
P
R
O
J
E
C
T
V
I
C
I
N
I
T
Y
M
A
P
N
O
T
T
O
S
C
A
L
E
P
R
O
J
E
C
T
L
I
M
I
T
S
LEGEND:
A
T
T
A
C
H
M
E
N
T
A
D
I
A
B
L
O
R
O
A
D
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
1
/
3
SCALE:1" = 10'FEET 0102040PRELIMINAR
Y
P
L
A
N
S
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
D
I
A
B
L
O
R
O
A
D
DIABLO RO
A
D
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
2
/
3
SCALE:1" = 10'FEET 0102040PRELIMINARY
P
L
A
N
S
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
A
L
A
M
E
D
A
D
I
A
B
L
O
D
I
A
B
L
O
R
O
A
D
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
3
/
3
SCALE:1" = 10'FEET 0102040PRELIMINAR
Y
P
L
A
N
S
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
S
E
C
T
I
O
N
S
SCALE:1" = 10'FEET 0102040PRELIMINA
R
Y
P
L
A
N
S
-
N
O
T
F
O
R
C
O
N
S
T
R
U
C
T
I
O
N
TRAIL TYPICAL SECTION
D
R
A
F
T
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
S
C
A
L
E
:
1
"
=
1
0
0
'
P
R
O
J
E
C
T
V
I
C
I
N
I
T
Y
M
A
P
N
O
T
T
O
S
C
A
L
E
P
R
O
J
E
C
T
L
I
M
I
T
S
SCALE:1" = 50'200100500FEET
P
L
A
N
N
O
T
T
O
S
C
A
L
E
D
R
A
F
T
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
S
C
A
L
E
:
1
"
=
2
0
'
SCALE:1" = 20'8040200FEET
P
R
O
F
I
L
E
1
"
=
2
0
'
P
L
A
N
1
"
=
2
0
'
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
S
C
A
L
E
:
1
"
=
1
0
0
'
DRAFT
P
R
O
F
I
L
E
1
"
=
2
0
'
P
L
A
N
1
"
=
2
0
'
SCALE:1" = 20'FEET 0204080
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
S
C
A
L
E
:
1
"
=
2
0
'
DRAFT
P
R
O
F
I
L
E
1
"
=
2
0
'
P
L
A
N
1
"
=
2
0
'
SCALE:1" = 20'FEET 0204080
T
O
W
N
O
F
D
A
N
V
I
L
L
E
D
I
A
B
L
O
R
O
A
D
T
R
A
I
L
P
R
O
J
E
C
T
P
L
A
N
S
C
A
L
E
:
1
"
=
2
0
'
DRAFT
P
R
O
F
I
L
E
1
"
=
2
0
'
P
L
A
N
1
"
=
2
0
'
SCALE:1" = 20'FEET 0204080