Need a Hand With Your commute?

511 Contra Costa is your 411 on commuter transportation information for travel to, through, or from Contra Costa County. 511 Contra Costa provides trip planning services for commuters and residents who would like to use public transportation. We help you find the nearest Park-and-Ride lot or transit center, figure out how many bus operators it will take to a get from one county to the next, tell you how get Aunt Mary from the foothills to Martine, or answer pretty much any question you have on driving or commuting in the area.

Our representatives are available to answer your questions Monday through Thursday from 8:30 a.m. to 5:00 p.m., and from 8:30 a.m. to 1:00 p.m. on Fridays. You can also email, fax, or mail us for any reason.

Phone: (925) 969-0841 x204
Fax: (925) 969-9135
E-mail: support@511contracosta.org
Snail mail: P.O. Box 23675, Pleasant Hill, CA 94523

About Us

Quick facts about 511 Contra Costa

511 Contra Costa is a comprehensive transportation demand management program, which promotes alternatives to the single occupant vehicle. We encourage what we call “green commutes”, which reduce traffic congestion and improve air quality by maximizing the use of the existing roadway system. Green commute options include carpooling, vanpooling, telecommuting, biking, transit, and walking.

511 Contra Costa is sponsored by all twenty jurisdictions in Contra Costa County, CA, through four regional transportation planning committees – SWAT (southwest county), TRANSPAC (central county), TRANSPLAN (east county), and WCCTAC (west county). Funding for 511 Contra Costa programs and projects is provided primarily by the Bay Area Air Quality Management District’s Transportation Fund for Clean Air, and a ½ cent sales tax approved by voters in the County in 1988 and administered by the Contra Costa Transportation Authority. A portion of Employer Outreach services and programs are funded by the Metropolitan Transportation Committee’s Congestion Mitigation Air Quality funds. 511 Contra Costa sponsors this website which contains commuter transportation information pertaining to Contra Costa and the greater San Francisco Bay Area.

Our Offices

Walnut Creek (TRANSPAC and TRANSPLAN)

Covers the cities of Clayton, Concord, Pleasant Hill, Martinez, Walnut Creek and Antioch, Brentwood, Oakley, Pittsburg, and unincorporated areas of central and eastern Contra Costa. Project oversight includes:

For information on carpooling, transit, or school transit call Matt Wood at 925-969-0841 x203.

Program Manager

Lynn Osborn Overcashier
P.O. Box 23675

Pleasant Hill, CA 94523
P: (925) 969-0841 x202
F: (925) 969-9135
Email: lynn@511contracosta.org

San Ramon (SWAT)

Covers the cities of of Danville, Lafayette, Moraga, Orinda, San Ramon and unincorporated areas of southwest Contra Costa. Project oversight includes:

For information on vanpooling or school projects contact Darlene Amaral at 925-973-2655

Program Manager

Lisa Bobadilla
3180 Crow Canyon Place, Ste 140

San Ramon, CA 94583
P: (925) 973-2651
F: (925) 866-6173
Email: lbobadilla@511contracosta.org

San Pablo (WCCTAC)

Cover the cities of El Cerrito, El Sobrante, Hercules, Kensington, Pinole, Richmond, Rodeo, San Pablo, and other unincorporated areas of western Contra Costa. Project oversight includes:

  • Guaranteed ride home program
  • Employer network (for employers located in El Cerrito, Pinole, Hercules, Richmond, San Pablo, and unincorporated areas of west county)
  • I-80 outreach program (includes transit incentives and information distribution)

For information on Guaranteed Ride Home, school transit, or community outreach projects contact Linda Young at 510-215-3008

Office Manager

Linda Young
Transportation Project Specialist
City of San Pablo
13831 San Pablo Avenue

San Pablo, CA 94806
P: (510) 215-3008
F: (510) 235-7059
Email: linday@511contracosta.org

Bay Area Air Quality Management District

Bay Area Air Quality Management District

511 Contra Costa

511 Contra Costa

Contra Costa Transportation Authority

Contra Costa Transportation Authority