Caltrans District 4
Building safe, efficient, accessible, and eco-friendly highways for all!
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D4 Small Business Program's Spring Procurement Showcase - March 17, 2026
D4 Small Business Program's Spring Procurement Showcase - March 17, 2026
SR 17 Corridor Plan Community Survey
SR 17 Corridor Plan Community Survey
Survey to collect public comments on the SR 17 corridor for CMCP.
State Route 17 Comprehensive Multimodal Corridor Plan - PublicInput
State Route 17 Comprehensive Multimodal Corridor Plan - PublicInput
Caltrans Districts 4 and 5 are jointly developing the SR 17 Comprehensive Multimodal Corridor Plan (CMCP) that will address topics such as safety reliability and multimodal accessibility throughout the corridor. The plan also will also have a focus on critical sustainability issues along the corridor such as climate change resiliency emergency management and wildlife habitat connectivity. The plan will set a corridor vision and identify potential transportation improvements and resiliency strategies along the corridor. Spanish / Español | Chinese (Simplified) / 简体中文
SR-29 Newsletter
SR-29 Newsletter
Mandatory Pre-Bid Meeting 2-4-2026
Mandatory Pre-Bid Meeting 2-4-2026
Simple, modern video meetings for everyone on the world's most popular and trusted collaboration platform.
District 4 | Caltrans-Alameda, Contra Costa, Napa, Marin, San Mateo, Santa Clara, San Francisco, Solano and Sonoma Counties
District 4 | Caltrans-Alameda, Contra Costa, Napa, Marin, San Mateo, Santa Clara, San Francisco, Solano and Sonoma Counties
Welcome to the Oakland Alameda Access Project Toolkit | Caltrans
Welcome to the Oakland Alameda Access Project Toolkit | Caltrans
State of California
Richmond - San Rafael Bridge | Caltrans
Richmond - San Rafael Bridge | Caltrans
State of California
D4 Customer Service Request (CSR) Response Dashboard | Caltrans
D4 Customer Service Request (CSR) Response Dashboard | Caltrans
State of California
Get Involved – Clean California
Get Involved – Clean California
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Facebook
District 4 County Update Newsletters | Caltrans
District 4 County Update Newsletters | Caltrans
State of California
Adopt-A-Highway | Caltrans
Adopt-A-Highway | Caltrans
State of California
Caltrans QuickMap real time traffic, road closures and chain controls.
Caltrans QuickMap real time traffic, road closures and chain controls.
Submit Customer Service Request
Submit Customer Service Request
Caltrans D4 Emergency Resource Page
Caltrans D4 Emergency Resource Page
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