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Contra Costa Transportation Authority

2999 Oak Rd Ste 100, Walnut Creek, CA 94597-2011
(925) 256-4700

The Contra Costa Transportation Authority (CCTA) is a public agency formed by Contra Costa voters in 1988 to manage the county's transportation sales tax program and to do countywide transportation planning.

CCTA is responsible for maintaining and improving the county’s transportation system by planning, funding, and delivering critical transportation infrastructure projects and programs that connect our communities, foster a strong economy, increase sustainability, and safely and efficiently get people where they need to go. CCTA is also the county's designated Congestion Management Agency (CMA), responsible for putting programs in place to keep traffic levels manageable.

We work to improve our quality of life and help make our community great – now and in the future.

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Standard Documents

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Upcoming Solicitations

Number Deadline
IFB26-C3: Moraga Road and Canyon Road Complete Streets Project
CCTA Solicitation Number: IFB26-C3 CCTA Contract Number: 766 CCTA Project Number: 31005 Federal Project Number: SS4AL-6072(043) Engineer's Estimate: $2,325,371 Bid Opening Date and Time: Tuesday, August 18, 2026, @ 3:00PM https://ccta-ca-gov.zoom.us/j/86838766501?pwd=J7dIuHj8EsNfuaPvXTbJuNuzk3p9C1.1 Pre-Bid Meeting (Non-Mandatory): Wednesday, August 5, 2026 @ 3:00PM https://ccta-ca-gov.zoom.us/j/89233096774?pwd=oTzbeU6689698R6hCCFQCgGOcFpdlI.1 General work description: This project will add new sidewalks, replace/repair nonconforming sidewalks, ADA-accessible curb ramps, solar powered Rectangular Rapid Flashing Beacons (RRFB), speed feedback signs, intersection re-timing, signalization of Canyon Road & Country Club Drive intersection, and signal modifications at Moraga Way & Moraga Road intersection, St. Mary's Road & Moraga Road intersection. CCTA Contracts Manager: Daniel Mermelstein dmermelstein@ccta.ca.gov
08/18/2026 10:00 PM UTC
1 Solicitation

Closed Solicitations

Number Deadline
I-80 Central Avenue Operational Improvements: CCTA Contract No. 463
General work description: install roadside signs and variable message signs, install and modify traffic signals, remove and replace pavement markings and striping, and electrical work under the Caltrans 2010 Standard Specifications and Standard Plans.
06/29/2017 06:00 PM UTC
11 - 11 of 11 Solicitations
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