State Route 4 Corridor Vision Study

The Contra Costa Transportation Authority (CCTA) is developing the State Route 4 (SR-4) Corridor Vision Study in order to develop a long-term, comprehensive transportation plan for SR-4 that addresses congestion, safety, and other mobility concerns in Contra Costa County. SR-4 is the primary east-west highway in the northern portion of Contra Costa County, beginning in Hercules in the west and continuing into San Joaquin County in the east. This work is being done in partnership with the California Department of Transportation (Caltrans).

With this new vision established, CCTA will be able to make forward-thinking investments along SR-4 and the surrounding local roads, railways, waterways, transit systems, and bike and pedestrian connections.

SR-4 Corridor Map

SR-4 Corridor Vision Study Goals

Enhance overall safety
Improve multimodal travel
Increase economic vitality
Improve social equity
Support efficient land uses
Leverage technology to improve corridor efficiency
Improve air quality, health, and sustainability

We want to hear from you!


What is a Comprehensive Multimodal Corridor Plan (CMCP)?

This study is a crucial step in CCTA’s efforts to fund transportation infrastructure investments by meeting Senate Bill (SB) 1 Congested Corridor Program requirements for a Comprehensive Multimodal Corridor Plan (CMCP). A CMCP is developed with state, regional, and local partners and is consistent with the Regional Transportation Plan.

A CMCP aims to:

  • Provide holistic guidance for transportation investments.
  • Reduce congestion in highly traveled corridors.
  • Provide more transportation choices for residents, commuters, and visitors while balancing the character of the local community.
  • Create opportunities for neighborhood enhancement projects.

For more info about this study, contact:

John Hoang – Director, Planning
Contra Costa Transportation Authority