CALTRAIN & UP RR over 42ND AVE
A railroad bridge over 42ND AVE in San Mateo, California.
What the bridge record says
Vertical clearance under the bridge: 16 ft 9 in (5.13 m), as recorded in the National Bridge Inventory, 2025.
Built in 1989.
Clearance is the measured height recorded by the state in the National Bridge Inventory. The sign at the bridge can show a different figure.
Source: FHWA National Bridge Inventory, 2025.