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San Mateo-Hayward Bridge

San Mateo-Hayward Bridge
San Mateo-Hayward Bridge

Once considered the worst evening commute in the Bay Area, the San Mateo-Hayward Bridge dropped off the list of worst commutes with the completion of the bridge’s widening in January 2003. Funded as part of BATA’s RM 1 program, the low-rise trestle portion of the bridge was widened from four to six lanes to match the configuration of the high-rise portion of the bridge.

Safety on the bridge also has been improved, with the addition of full shoulders along both low-rise trestles providing a safer refuge for disabled vehicles. In addition, the seismic safety of the bridge was increased by Caltrans’ completion of its bridge retrofit project in 2000.

As part of the effort to improve traffic flow and to relieve congestion on the bridge and its approaches, the RM 1-funded Interstate 880/State Route 92 interchange in Hayward was completed in October 2011.

Bridge Facts At-A-Glance
LOCATION: State Route 92 between San Mateo and Alameda counties
STRUCTURE: Steel box girder and concrete trestle approach spans
LENGTH: Highrise steel girder spans 1.9 miles, lowrise trestle portion 5.1 miles
CHANNEL SPAN: 750 feet


October 1967, widened 2003
  • Original structure: $70 million
  • Widened structure: $200 million
COLLECTION: One way, westbound in Hayward
TRAFFIC LANES: Three in each direction
FY 2018-19 TOTAL TOLL-PAID VEHICLES: 19,732,168
FY 2018-19 TOTAL TOLLS COLLECTED: $105,140,985