Who We Are

The San Mateo County Transportation Authority (TA) plans, funds and delivers transportation programs and projects throughout San Mateo County.

The TA was formed in 1988 with the passage of the voter-approved half-cent sales tax for countywide transportation projects and programs, known as Measure A.

The original Measure A ran through 2008. In 2004, county voters overwhelmingly voted to reauthorize Measure A through 2033. In 2018, county voters passed Measure W, which provided an additional revenue stream to improve transit and relieve traffic congestion. The TA’s role is to administer the proceeds from Measure A to fund a broad spectrum of transportation-related projects and programs. The TA has invested approximately $2 billion in transportation infrastructure projects in San Mateo County since 1988.

The TA is an independent agency governed by an appointed board of seven directors, who are elected officials, representing the county, cities and the San Mateo County Transit District.

To learn more about the TA and read about some of our actively funded projects, please check out the factsheets below: