To: Board of Supervisors
From: Warren Lai, Public Works Director/Chief Engineer
Report Title: Agreement between Contra Costa County and the Contra Costa Transportation Authority for the I-80 San Pablo Dam Road Interchange Reconstruction - Phase II Project, San Pablo area.
?Recommendation of the County Administrator ? Recommendation of Board Committee
RECOMMENDATIONS:
APPROVE and AUTHORIZE the Public Works Director, or designee, to execute a Funding Exchange Agreement (Agreement) between Contra Costa County and the Contra Costa Transportation Authority (CCTA) for costs pertaining to the I-80 San Pablo Dam Road Reconstruction - Phase II Project (Project), San Pablo area. (District I)
FISCAL IMPACT:
The County will allow CCTA to utilize County's Measure J funds now in exchange for future programming of 2028 State Transportation Improvement Program (STIP) funding. (100% Local Road funds)
BACKGROUND:
The Interstate 80 (I-80) San Pablo Dam Road interchange provides access between residential areas north and east of the interchange and Bay Area employment centers. The interchange currently experiences 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 City of San Pablo and CCTA identified the Interstate 80/San Pablo Dam Road Interchange Improvements Project, which would reconstruct the existing I-80 San Pablo Dam Road interchange (including modifications to the El Portal Drive and McBryde Avenue ramps) and provide improved pedestrian and bicycle facilities.
To match available funding, the Interstate 80/San Pablo Dam Road Interchange Improvements Project was designed to be completed in two phases. Phase I relocated the El Portal Drive on-ramp to westbound I-80 to the north, extended the auxiliary lane along westbound I-80 between San Pablo Dam Road off-ramp and El Portal on-ramp, and reconstructed the Riverside A...
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