State Route 24 Corridor Map
A Regional Gateway Connecting Contra Costa and Alameda County
State Route 24 provides a regional connection between Contra Costa and Alameda counties; it features the Caldecott Tunnel which functions as a regional gateway between I-680 to the east and I-80 and I-580 to the west.
The Alameda County portion of State Route 24 is approximately 6.24 miles long. It begins at I-580 in Oakland, crossing State Route 13 before ending at the Alameda/Contra Costa County line. The Contra Costa portion is approximately 9.14 miles long. It begins at the Alameda/Contra Costa County line and terminates at I-680 in Walnut Creek.
Corridor Specific Issues
- Key regional commuter route
- Caldecott Tunnel functions as regional gateway
- Officially designated Scenic Highway
- Entire length of corridor served by BART
- Local bus service serves as feeder access to BART and neighborhoods
- Growth in Central and Eastern Contra Costa County has contributed to SR-24 congestion
- Bicycl/Pedestrian access barriers to transit hubs exist in many communities
CMIA Projects
The CSMP requirement is noted in the Baseline Agreements of all projects receiving CMIA funding. CMIA funds have been allocated for the following improvement project on the SR-24 Corridor:
- Caldecott Tunnel 4th Bore
Partners and Project Schedule
Caltrans is working in partnership with local agencies and groups to develop a Corridor System Management Plan (CSMP) for the SR-24 Corridor, which begins at the I-580/I-980 interchange and traverses eastward, terminating at I-680 in Walnut Creek.
The SR-24 CSMP is expected to be completed by Fall 2009. Its recommendations will then be considered in the transportation planning processes that are conducted by the Metropolitan Transportation Commission (MTC), Caltrans, the Alameda County Congestion Management Agency (ACCMA), and the Contra Costa Transportation Authority (CCTA); all agencies that are responsible for funding and implementing regional and interregional-scale
transportation projects.
- Complete Draft CSMP (May 2010)
- Adopt Final CSMP (July 2010)
View a copy of the SR-24 Fact Sheet by clicking here
For More Information, please contact:
Erik Alm
Office of System Planning
District 4
