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TRANSPAC (Transportation Partnership and Cooperation) is the Regional Transportation Planning Committee (RTPC) for Central Contra Costa. It is composed of elected representatives, planning commissioners and technical staff from the six Central Contra Costa jurisdictions including the cities of Clayton, Concord, Martinez, Pleasant Hill, Walnut Creek and the unincorporated area of Central Contra Costa County. TRANSPAC is responsible for the development of transportation plans, projects and programs for the Central County areas as well as the appointment of two representatives to the Contra Costa Transportation Authority who serve alternating two-year terms.


511 Contra Costa Summer Bike Challenge

Flyers Clayton | Concord | Martinez | Pleasant Hill | Walnut Creek
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Monument/I-680 Bicycle and Pedestrian Improvement Study

The TRANSPAC Committee is developing a feasibility study to identify specific improvements to the bicycle and pedestrian connections on the Monument Boulevard Corridor across I-680. This is a heavily-traveled roadway, including high-speed freeway ramps, with minimal facilities for non-motorists. The TRANSPAC Committee has partnered with CCTA to assist in contracting and administering the study. This […]
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Contra Costa County Regional Map

TRANSPAC Member Jurisdictions

TRANSPAC member jurisdictions include the cities of Clayton, Concord, Martinez, Pleasant Hill, Walnut Creek and unincorporated areas of Central Contra Costa County.

Meeting Schedules

TRANSPAC usually meets the second Thursday of every month at 9:00 a.m. The Technical Advisory Committee (TAC) meets every last Thursday at 9:00 a.m. In light of the COVID-19 pandemic, meetings will be held via video/phone conference. Meeting log-in information will be posted in advance of the meeting on the Agenda Packet.

TRANSPAC Conflict of Interest Notice