About Us

View the 511 Contra Costa Quick Facts (pdf)

511 Contra Costa is a comprehensive transportation demand management program, which promotes alternatives to the single occupant vehicle. These efforts reduce traffic congestion and improve air quality by maximizing the use of the existing roadway system. Examples of the types of commute alternative projects that are implemented by 511 Contra Costa staff encourage carpooling, vanpooling, telecommuting, biking, transit, and walking. The programs demonstrate quantifiable results on an annual basis.

511 Contra Costa is sponsored by all twenty jurisdictions in Contra Costa County, California, through the regional transportation planning committees. The four Regional Transportation Planning Committees consist of 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, which funds transportation improvement projects. 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.

Contra Costa Transportation Demand Management (TDM) Programs
Prior to the passage of Measure C in 1988, Concord, San Ramon and Walnut Creek had already established local TDM Programs. With the growth management requirements of Measure C in 1988, four Regional Transportation Planning Committees were established in 1992 which incorporated the city’s TDM Programs. In 1997, the four regions consolidated the TDM Programs. Collectively the four TDM Programs are called 511 Contra Costa.

With offices located in San Pablo, San Ramon and Walnut Creek staff are able to provide information detailed the specific transportation needs of the residents and employers. The offices work collaboratively to develop and implement seamless local projects and countywide programs.

Office locations:

Walnut Creek: representing the Regional Transportation Planning Committees of TRANSPAC and TRANSPLAN. Services are provided on behalf of Clayton, Concord, Pleasant Hill, Martinez, Walnut Creek and Antioch, Brentwood, Oakley, Pittsburg unincorporated areas of central and eastern Contra Costa.

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

Office Manager Contact:
Lynn Osborn Overcashier
Program Manager
P.O. Box 23675
Pleasant Hill, CA 94523
(925) 969-0841 x202
FAX: (925) 969-9135
Email: lynn@511contracosta.org

    Project oversight includes:

  • Countywide Carpool Incentive Program (includes Carpool to BART incentives and College Commute Program of incentives)
  • Countywide Transit Incentive Program
  • SchoolPool (public transit tickets and carpool ridematch for central and eastern schools)
  • Employer Network (for employers in Martinez, Concord, Clayton, Walnut Creek, Pleasant Hill, Antioch, Pittsburg, Brentwood, Oakley and unincorporated areas in central and eastern Contra Costa)
  • Countywide Bike Locker Project

San Ramon: representing the Southwest Area Transportation Committee (SWAT). Services are provided on behalf of Danville, Lafayette, Moraga, Orinda, San Ramon and unincorporated areas of southwest Contra Costa.

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

Office Manager Contact:
Lisa Bobadilla
City of San Ramon
Program Manager
3180 Crow Canyon Place, Ste 140
San Ramon, CA 94583
(925) 973-2651
FAX: (925) 866-6173
Email: lbobadilla@511contracosta.org

    Project oversight includes:

  • Countywide Vanpool Incentive Program
  • Employer Network (for cities in SWAT region which include Danville, San Ramon, Lafayette, Moraga and Orinda)
  • Clean Fuel Vehicle Programs
  • Carpool to School Programs (for San Ramon, Danville, Lamorinda cities)
  • Lamorinda School Bus Program funding

San Pablo: representing the West Contra Costa Transportation Advisory Committee (WCCTAC). Services are provided on behalf of El Cerrito, El Sobrante, Hercules, Kensington, Pinole, Richmond, Rodeo, San Pablo, and other unincorporated areas of western Contra Costa.

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

Office Manager Contact:
Linda Young
Transportation Project Specialist
City of San Pablo
13831 San Pablo Avenue
San Pablo, CA 94806
(510) 215-3008
FAX: (510) 235-7059
Email: linday@511contracosta.org

    Project oversight includes:

  • Countywide 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)
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