Countywide Transportation Plan

The Countywide Transportation Plan (CTP) provides the overall direction for achieving and maintaining a balanced and functional transportation system within Contra Costa County while strengthening links between land use decisions and transportation. It outlines the Contra Costa Transportation Authority’s (CCTA’s) vision for Contra Costa and establishes goals, strategies, projects, and actions for achieving that vision.


On September 20, 2017 CCTA adopted the Final 2017 CTP Update. The 2017 CTP is comprised of two volumes:

Volume 1 provides the Vision, Goals, and Strategies; a review of issues facing our transportation system; an overview of the cooperative planning process in Contra Costa; and an implementation plan for meeting our transportation goals.
Volume 2 contains a summary of the Action Plans, along with a performance and equity evaluation of major projects, those costing more than $25 million.

Action Plans

As part of the 2017 update of the Countywide Comprehensive Transportation Plan (CTP) the Regional Transportation Planning Committees (RTPCs) updated their Action Plans for Routes of Regional Significance. The Action Plans are intended to establish quantitative service objectives by which we can gauge the progress of our transportation system and assess the impacts of landuse decisions on the regional transportation system. Each Action Plan identifies a system of Regional Routes – those freeways, arterials and other facilities that provide the main connections throughout Contra Costa’s communities. The Action Plans help local jurisdictions meet the requirement of the Measure J Growth Management Program (GMP) that requires local jurisdictions to participate in a cooperative, multi-jurisdictional planning process.


Each Actions Plan includes:

  • Long-range assumptions about future land use based on local general plans and regional forecasts
  • Overarching goals that articulate CCTA’s vision for the future
  • Adopted Multi-modal Transportation Service Objectives (MTSOs) that include a quantifiable measure of effectiveness and a target date for achieving that objective
  • Specific actions to be implemented by each participating jurisdiction
  • Requirements for consultation on environmental documents among participating localities
  • Procedure for review of impacts resulting from proposed local General Plan amendments that have the potential to influence the effectiveness of adopted Action Plans.

The RTPCs developed the first Action Plans in the early 1990s and updated them in 1999-2000 and 2009. To view the final September 2017 updates to the Action Plans please click on the document links below.

Environmental Impact Report (EIR)

On September 20, 2017, CCTA certified the Final EIR for the 2017 Countwide Transportation Plan (CTP). The Draft EIR was released on June 16, 2017. The comment period on the Draft EIR was open until August 1, 2017. Following the close of the comment period, CCTA prepared the responses to comments which were distributed to all commenters on September 1, 2017.

The EIR evaluated the Long Range Transportation Program (LRTIP) in the 2017 CTP. The LRTIP consists of $6.447 billion in multi-modal projects and programs.

In addition to the No Project alternative the Draft EIR evaluates two alternative investment options as well as the projects in the Regional Transportation Plan (RTP) prepared by the Metropolitan Transportation Commission (MTC).

The Final EIR can be downloaded here chapter by chapter.