The Sonoma County Transportation Authority, SCTA, was formed as a result of legislation passed in 1990 to serve as the coordinating and advocacy agency for transportation funding for Sonoma County, and, since 2004, administers Measure M funds generated within Sonoma County through a local sales tax for specific transportation projects in the County. The SCTA partners with other agencies to improve transportation in the County, including Highway 101, local streets, transit, bicycle and pedestrian facilities.

In addition to Measure M, the SCTA coordinates local funding for a number of other sources:

  • One Bay Area Grant Program
  • Transportation Fund for Clean Air
  • Transportation Development Act, Article 3
  • Lifeline Transportation Program
  • Active Transportation Program
  • State Transit Assistance

Transportation Fund for Clean Air
SCTA administers the Transportation Fund for Clean Air (TFCA) County Program Manager Funds.  These funds come from a $4 vehicle registration surcharge applied to all vehicles licensed in the Bay Area Air Quality Management District. The TFCA County Program Manager Funds comprise 40% of the total funds created in Sonoma County.  SCTA is responsible for programming these funds annually. Funding is used for transportation projects that demonstrate a positive effect on local air quality. Projects include transit, traffic control, and facilities and amenities for bicyclists and pedestrians. More information

Applications for the FYE 2020 Call for Projects are due on March 15, 2019.

Transportation Development Act, Article 3
TDA funds are generated from a statewide ¼ cent sales tax. Article 3 of TDA is a set-aside of approximately 2% of those monies. MTC administers TDA3, which is distributed based on population. Each year, an annual fund estimate or “entitlement” is developed for each jurisdiction. Unused entitlement is accumulated as credit. A jurisdiction’s claim in any given year cannot exceed the sum of their accumulated credit plus their projected entitlement for the following two years.

Sonoma County’s cities/towns and the County of Sonoma are eligible to apply. TDA3 funds may be used for bicycle lanes, bicycle and pedestrian paths, and related planning and marketing efforts. There are no matching requirements with this funding source. TDA3 projects are required to meet Caltrans safety design criteria and CEQA requirements, be completed within three years, be maintained, be consistent with adopted bicycle plans, and be authorized by a governing council or board. More information

The FY 2020-2021 TDA3 Preliminary Call for Projects is available below. No applications are being solicited at this time.


Federal Funds
In FY2013/2014, the SCTA monitored delivery of projects funded with federal fund sources, specifically, Surface Transportation Program (STP), and Congestion Mitigation and Air Quality (CMAQ).  Projects obligated include preliminary engineering for roadway preservation, as well as bicycle and pedestrian improvements along paths and at street intersections.

Rebuilding California – Senate Bill 1
Senate Bill 1, the Road Repair and Accountability Act of 2017, was signed into law on April 28, 2017. This legislative package invests $54  billion over the next decade to fix roads, freeways and bridges in communities across California and puts more dollars toward transit and safety. These funds will be split equally between state and local investments. SB1 provides significant funding for projects that are of high priority to the SCTA, though it does not come with funding to support the SCTA staff or the support work (soft costs) associated with most projects. More information on specific Sonoma County jurisdictions is provided in the following fact sheets:

County Overview
Rohnert Park
Santa Rosa
Sonoma (City)

More information on SB1 from the State of California

Lifeline Transportation Program Cycle 5
SCTA administers the Lifeline Transportation Program (Lifeline) in coordination with the Metropolitan Transportation Commission (MTC). This program supports projects that address mobility and accessibility needs in low-income communities throughout the region. Compatibility with Lifeline goals and adherence to the Lifeline application process are required. A workshop for applicants will be held on March 14, 2018, from 9:00 to 10:00 a.m. at the SCTA office.

Applications for the Lifeline Cycle 5 Call for Projects are due on March 30, 2018.

One Bay Area Grants
MTC’s One Bay Area Grant program — or OBAG — is a funding approach that aligns the Commission’s investments with support for focused growth. Established in 2012, OBAG taps federal funds to maintain MTC’s commitments to regional transportation priorities while also advancing the Bay Area’s land-use and housing goals. More information

One Bay Area Grant (OBAG 2) Call for Projects

The SCTA Board of Directors approved releasing the following Call for Projects for the next round of One Bay Area Grant funding from the Metropolitan Transportation Commission.  This funding is available to eligible transportation federal aid recipients.  The documents below include an application, instructions, a schedule for the application process and SCTA’s outreach efforts to date.  Potential projects were evaluated with established criteria.  The total point value of the application is 34 points. Potential projects were vetted through the SCTA’s advisory committees and then sent to the SCTA Board for approval.  SCTA approved projects will then be forwarded to the Metropolitan Transportation Commission for final approval.  All applications were due to the SCTA Office by no later than close of business on January 13th, 2017.  Please see below for application documents.  Questions should be directed to Seana L. S. Gause at

One Bay Area Grant (OBAG 2) Applications Received

The SCTA received a total of 19 applications from eight cities, two county departments and the Sonoma Marin Area Rail Transit District for evaluation.  An SCTA staff team evaluated the applications and scored the projects to balance project type, ability to meet Regional Transportation Plan (RTP) goals and have an emphasis on Priority Development Areas (PDAs).  Project Description and Delivery History were among the most heavily weighted items in the application.  Applications and the score cards are listed below by project sponsor.  A project sponsor with more than one application has all applications grouped together for facility of review. Click on the sponsor name in the columns below to view the applications or score cards.   All the applicants also supplied the required documents for eligibility. Those documents are on file at the SCTA offices and have not been reproduced here.

Applications Score Cards
Rohnert ParkRohnert Park
Santa RosaSanta Rosa
Sonoma County Regional ParksSonoma County Regional Parks
Sonoma County Transp & Public WorksSonoma County Transp & Public Works
Sonoma Sonoma

OBAG 2 Final List of Projects

The SCTA Board approved the final list of projects to receive funding at the May 8, 2017 Board of Directors meeting.  The final list of projects will be proposed to the Metropolitan Transportation Commission for approval.

Active Transportation Program

The Active Transportation Program (ATP) was created by Senate Bill 99 (Chapter 359, Statutes of 2013) and Assembly Bill 101 (Chapter 354, Statutes of 2013) to encourage increased use of active modes of transportation, such as biking and walking. The ATP consolidates various transportation programs, including the Federal Transportation Alternatives Program, State Bicycle Transportation Account, and Federal and State Safe Routes to School programs into a single program. Program funding is segregated into three components and is distributed as follows:

  • 50% to the state for a statewide competitive program,
  • 10% to small urban and rural regions with populations of 200,000 or less for the small urban and rural area competitive program, and
  • 40% to Metropolitan Planning Organizations (MPO) in urban areas with populations greater than 200,000 for the large urbanized area competitive program.

For the most up-to-date information on the Statewide ATP, refer to the California Transportation Commission (CTC) website.

For the most up-to-date information on the Regional ATP, refer to the Metropolitan Transportation Commission (MTC) website.