Article 6. San Mateo-hayward And Dumbarton Bridges of California Streets And Highways Code >> Division 17. >> Chapter 2. >> Article 6.

(a) The San Mateo-Hayward Bridge is the bridge, together with necessary approaches, across San Francisco Bay connecting the County of San Mateo near the City of San Mateo with the County of Alameda near Mount Eden. The approaches to the bridge shall include, but not be limited to, the following:
  (1) An approach along Route 92 to Route 101, including the interchange between Routes 92 and 101, in the County of San Mateo.
  (2) An approach along Route 92 to a point at or near the junction of Routes 17 and 92, in the County of Alameda.
  (3) An interchange between Routes 17 and 238, in the County of Alameda.
  (4) The portion of Route 17 between Route 92 and Route 238, in the County of Alameda.
  (b) The Dumbarton Bridge is the vehicle bridge across San Francisco Bay, together with necessary approaches, connecting the County of San Mateo near Menlo Park with the County of Alameda near Fremont.

The department is authorized to modify, improve, reconstruct, and remodel the San Mateo-Hayward Bridge and the Dumbarton Bridge as is necessary to adequately handle anticipated traffic and permit the collection of tolls.