To: Board of Supervisors
From: Warren Lai, Public Works Director/Chief Engineer
Report Title: Striping plan and agreement between Contra Costa County and the State of California, Department of Transportation, for the Livorna Road underpass at Interstate 680, Alamo area.
☒Recommendation of the County Administrator ☐ Recommendation of Board Committee
RECOMMENDATIONS:
APPROVE and AUTHORIZE the Chair, Board of Supervisors, to execute an Amendment Number 1 to the Freeway Maintenance Agreement between Contra Costa County and the State of California, Department of Transportation, to establish maintenance responsibilities along the Livorna Road underpass at Interstate 680 and APPROVE plans for striping along the Livorna Road underpass from San Ramon Creek to Sugarloaf Drive, Alamo area. (District II)
FISCAL IMPACT:
The cost for striping is estimated to be $108,000.00. (100% Local Road Funds)
BACKGROUND:
In 2021, Contra Costa County completed striping along Livorna Road as part of the 2021 Surface Treatment Project, but striping of the Livorna Road underpass at Interstate 680 was not completed during the project. Striping plans were prepared for the Livorna Road underpass to install class II bikeways (bike lanes) and left turn pockets for the northbound and southbound Interstate 680 ramps. The proposed striping is located within the California Department of Transportation (Caltrans) right-of-way, so staff applied for a Caltrans encroachment permit to implement the striping changes. The Caltrans encroachment permit requires the County to execute Amendment No. 1 to the Freeway Maintenance Agreement to establish maintenance responsibilities for the proposed bikeways. County Counsel approved the Agreement as to form.
CONSEQUENCE OF NEGATIVE ACTION:
If the project and amendment are not approved, striping for bike lanes and left turn lanes would not be installed along the Livorna Road underpass at Interstate 680.