Major Interchange Modifications at I-80 and San Pablo Dam Road, McBryde Avenue
and El Portal Drive
West Contra Costa Unified School DistrictMarch 12, 2013
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Project Location
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Project Limits
San Pablo Dam Road
El Portal Drive
I-80/San Pablo Dam Road Interchange
McBryde Avenue
• Reduce Traffic Congestion at the I-80/SPDR Interchange
• Improve Safety and Access to, from and on I-80• Provide Safe and Efficient Pedestrian Access
Across I-80• Accommodate Future Traffic Volumes• Provide Better Access to Amador Street
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Project Goals
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Congestion on SPDR,Spillover Impacts
EB Traffic near Denny’s WB Traffic at Amador St
Height of SPDR OC (14’-8” Clearance)
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Safety Issues
WB I-80
Standard Clearance = 16’-6”
14’-8”
Narrow/No Sidewalks
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Safety Issues
SPDR OC Amador St
Narrow Sidewalk(Width = 4’-0”)
Standard Sidewalk Width = 6’-0” (Minimum)
No Sidewalk
Pedestrian OC Does Not Cross Amador St
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Safety Issues
RiversideElementary
School
Amador St
• 283 crossings (7 AM – 4 PM) @ POC AM Peak Hour (8 AM – 9 AM): 83PM Peak Hour (2:30 PM – 3:30 PM): 98
• Amador Street:85th Percentile: 35 mphMax Speed: 45 mphAM Peak Hour (Both Direction): 792 cars/hourPM Peak Hour (Both Direction): 884 cars/hour
ADT on Amador St : 7948 cars/day (6247 NB, 1701 SB)
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Riverside Ave. Pedestrian Overcrossing
Project Features & BenefitsCi
ty o
f Ric
hmon
dCi
ty o
f San
Pab
lo Replace and Widen SPDR OC
ReplaceRiversideAve POC
Full Interchangeat El Portal Dr
Extend Auxiliary Lane
Remove Existing POC
Realign El Portal Dr
Realign Amador St
Construct McBryde Connector Road
Construct On-Ramp
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Relocate El Portal Dr Access
Relocate McBrydeAve Access
McB
ryde
Ave
Amador St
SPDR
El Portal Dr
To San Francisco
To Sacramento
Replace and Widen SPDR OC
Six Lanes5’ (Min) Shoulder7’ Sidewalk
Realign Amador St
Amador St
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Raised Median
Wider RampLeft Turn to Amador St
SPDR
To San Francisco
To Sacramento
Denny’s
Jack in the Box
Relocate El Portal Dr WB On-Ramp
Extend Auxiliary Lane Wider Ramp
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Relocate El Portal Dr Access
New Freeway Entrance
Reduce Accident RatesRealign El Portal Dr
Construct Sound Wall
To San Francisco
To Sacramento
El Portal Dr
El Portal Dr
Shell Gas Station
Relocate McBryde Ave Exit to SPDRMcBryde Ave TrafficExit at SPDR
City
of R
ichm
ond
City
of S
an P
ablo
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Safer Access to McBryde Ave
McBryde Ave Connector Road
Reduce Accident Rates
Eliminate Unsafe Weaving Conflict
Improved Traffic Operations on I-80
McBryde Ave Connector Road
To San Francisco
To San Francisco
To Sacramento
To Sacramento
SPDRAmador St
McB
ryde
Ave
Amador St
Denny’s
Relocate McBryde Ave Exit to SPDR
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To San FranciscoTo Sacramento
SPDR
Replace Riverside Ave
POC Spans Over Amador StRemove
Existing POCRi
vers
ide
Ave
Humboldt Ave
Riverside Elementary
School
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Pedestrian Overcrossing
Safer Access To/From School
Amador St
To San Francisco To Sacramento
Project Cost / Funding
Total Project Cost . . . . . . . . . . . . . . . . . . $113.8 M
Current Funding:
1. Measure J Funds: $7 M
2. City of San Pablo Redevelopment Fund $3 M
3. STIP Funds $15 M
4. Regional Measure 2 Funds $8 M
Available Funds $33.0 M
Funding Shortfall $80.8 M
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Project Phasing
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Project Phasing
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To San Francisco
To Sacramento
SPDR
Amador Street
Bridge Aesthetics
San Pablo Dam Road Overcrossing
Blue-Colored, Curvilinear Fence
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Solid Metal Panels
Perforated Metal Panels
Bridge Aesthetics
Riverside Avenue Pedestrian Overcrossing (POC)
Blue-Colored Fence Ramp Aesthetics(School Side of I-80)
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Colored Tiles
Fractured Rib
Pedestrian Ramps
Fencing
Sample Tiles
Riverside Ave Pedestrian Overcrossing
POC Spans Over Amador St
Riverside Ave
Riverside Elementary
School
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Safer Access To/From School
Amad
or S
t
Reconfigured Parking Lot
Project Schedule 2006 07 08 09 10 11 12 13 14 2015
Begin PA&ED:
September 2006
Begin Final Design: April
2011
IS/EA - PR Approved: May 2010
ROW Certification: Mid 2014
Complete Final Design Phase 1:
Late 2013Award Project Phase 1: Nov
2014
Begin Construction Phase 1: Late 2014
Submitted 35% Design
December 2011
Submitted 65% Design
September 2012Public Meetings – September 12/25, 2012
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Thank You
For more information visit: www.ccta.net
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