Planning Library

We’re partnering with City of Antioch and Street Smarts Diablo to create a unique, park-like facility that will help our community members of all ages

Contra Costa is a county as unique and diverse as its residents. From cities to waterfronts, from farmland to historic landmarks, our communities stretch from

Since Highway 4 has been significantly upgraded, access to the eastern part of Contra Costa County (East County), which includes the cities of Antioch, Brentwood,

CCTA is working with the TRANSPAC Committee to develop a feasibility study to identify specific improvements to the bicycle and pedestrian connections on the Monument

The Tri-Valley Hub Network Integration Study serves as a critical next step towards the strategic goal for a future Tri-Valley Hub, as outlined in the

As part of the passage of Proposition 1B in November 2006, the Corridor Mobility Improvement Account (CMIA) was created by the California Transportation Commission (CTC).

The I-680 Transit Investment and Congestion Relief Options Study was initiated in April 2015 and finalized in December 2015. The primary purpose of the Study

Interstate 80 is one of the most congested corridors in the Bay Area, and the Richmond BART line often reaches full capacity during commute hours.

The Contra Costa Transportation Authority (CCTA) is conducting a series of Community-Based Transportation Plans (CBTPs) to identify transportation improvements that will address the transportation needs

As the Congestion Management Agency for Contra Costa, CCTA has always strived to provide the best travel network for its cyclists and pedestrians. To make

To support its planning, programming and modeling efforts, the Contra Costa Transportation Authority maintains a database of transportation projects called the Comprehensive Transportation Project List,