Partner Agencies


If you are looking for more detailed information about the Plan Bay Area partner agencies, please contact the appropriate agency directly:

Association of Bay Area Governments
Leah Zippert
Communications Officer
375 Beale Street, Suite 700
San Francisco, CA 94105
(415) 820-7995
(415) 820-7985 fax

Metropolitan Transportation Commission
Ellen Griffin
Principal, Public Participation
375 Beale Street, Suite 800
San Francisco, CA 94105
(415) 778-6757
(415) 536-9800 Fax

Please share your questions or comments about the long-range transportation, land use and housing plan, Plan Bay Area 2040:

Phone: (415) 778-6757
Fax: (415) 536-9800

The first step toward participating in the regional planning process may begin close to home—with your local transit operator, your city council or your county congestion management agency (CMA). CMAs administer local transportation sales tax programs and play a key role in determining which local transportation projects receive funding. If you are looking for more detailed information about specific transportation projects in your county, you may want to contact your county’s local Congestion Management Agency.

Here are contacts for the nine county congestion management agencies:

Alameda County
Arthur L. Dao
Executive Director
Alameda County Transportation Commission
1111 Broadway, Suite 800
Oakland, CA 94607
510-893-6489 fax

Contra Costa County
Randell Iwasaki
Executive Director
Contra Costa Transportation Authority
2999 Oak Road, Suite 100
Walnut Creek, CA 94597
925-256-4701 fax

Marin County
Diane Steinhauser
Executive Director
Transportation Authority of Marin
900 Fifth Avenue, Suite 100
San Rafael, CA 94901
415-226-0816 fax

Napa County
Kate Miller
Executive Director
Napa Valley Transportation Authority
625 Burnell Street
Napa, CA 94559
707-299-4369 fax

San Francisco
Tilly Chang
Executive Director
San Francisco County Transportation Authority
1455 Market Street, 22nd Floor
San Francisco, CA 94103
415-522-4829 fax

San Mateo County
Sandy Wong
Executive Director
City/County Association of Governments of San Mateo County
555 County Center, 5th Floor
Redwood City CA 94063
650-361-8227 fax

Santa Clara County
John Ristow
Chief CMA Officer
Santa Clara Valley Transportation Authority
3331 North First Street
San Jose, CA 95134
408-321-7535 fax

Solano County
Daryl Halls
Executive Director
Solano Transportation Authority
One Harbor Center, Suite 130
Suisun City, CA 94585
707-424-6074 fax

Sonoma County
Suzanne Smith
Executive Director
Sonoma County Transportation Authority
490 Mendocino Avenue, Suite 206
Santa Rosa, CA 95401
707-565-5370 fax