Hayward-San Mateo Bridge

The San Mateo bridge is a bridge crossing the San Francisco Bay linking the San Francisco Peninsula with the East Bay, built in the early 20th century.

Its western end is in Foster City, the most recent addition to the eastern edge of San Mateo. The eastern end of the bridge is in Hayward.

The bridge links highway 580 in the East Bay with highway 92 on the Peninsula.