2999 Oak Road Walnut Creek, CA 94597 (925) 256.4700 www.ccta.net Interstate 80 / San Pablo Dam Road Interchange Improvements PROJECT # 7002 The Interstate 80/San Pablo Dam Road interchange provides access between residential areas north and east of the interchange and Bay Area employment centers. The interchange is currently experiencing severe peak hour congestion, resulting in extensive delays. Future traffic forecasts indicate that existing congestion is projected to increase, resulting in further deterioration of traffic operations. The project significantly benefits both vehicular and pedestrian/bicycle traffic by enhancing operations and safety within the interchange area. Did You Know? The Hayward Fault crosses I-80 in the vicinity of the San Pablo Dam Road requiring special design for the bridge structure. B-33
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2999 Oak Road Walnut Creek, CA 94597 (925) 256.4700 www.ccta.net
Interstate 80 / San Pablo Dam Road Interchange Improvements PROJECT # 7002
The Interstate 80/San Pablo Dam Road interchange provides access between residential areas north and east of the interchange and Bay Area employment centers. The interchange is currently experiencing severe peak hour congestion, resulting in extensive delays. Future traffic forecasts indicate that existing congestion is projected to increase, resulting in further deterioration of traffic operations. The project significantly benefits both vehicular and pedestrian/bicycle traffic by enhancing operations and safety within the interchange area.
Did You Know? The Hayward Fault crosses I-80 in
the vicinity of the San Pablo Dam
Road requiring special design for the
bridge structure.
B-33
2999 Oak Road Walnut Creek, CA 94597 (925) 256.4700 www.ccta.net
Project Interstate 80/San Pablo Dam Road Interchange Improvements (# 7002) Sponsor City of San Pablo/Contra Costa Transportation Authority Subregion West County March 16, 2016
Scope Reconstruct the existing I-80/San Pablo Dam Roadinterchange (including modifications to the El PortalDrive and McBryde Avenue ramps) and provideimproved pedestrian and bicycle facilities. To match available funding, the project will becompleted in two phases. The first phase will relocatethe El Portal Drive on-ramp to westbound I-80 to the north, extend the auxiliary lane along westbound I-80 between San Pablo Dam Road off-ramp and El PortalDrive on-ramp, and reconstruct the Riverside Avenuepedestrian overcrossing. Remaining improvements willbe completed as part of the second phase when fundingbecomes available.
Status Construction of the first phase is scheduled to
begin in February 2016.
Issues/Areas of Concern Staff is coordinating with the City of San Pablo to
determine EBMUD’s liability for the relocation costof a water main along El Portal Drive.
Phase 2 has a significant funding shortfall.
Location \
Schedule
DatesPhase 1 Phase 2
Preliminary Studies/ Planning
Complete Complete
Environmental Clearance Complete CompleteDesign Complete 2017-2018Right of Way and Utilities Complete 2018-2019Construction 2016-2017 2020-2022Landscaping — 2022-2023
Estimated Cost by Project Phase ($ 000s) Amount
Phase 1 Phase 2Project Management $172 $200Environmental Clearance 2,239 —Design 6,691 2,015Right of Way and Utilities 8,565 14,000Construction 19,332 56,500Construction