U.S. HIGHWAY 101
U.S. HIGHWAY 101 in 04-Sm-101-7.13-Rdwc, San Mateo County, California received a condition grade of F (0/100). Built in 1930, the bridge carries 195K vehicles daily on U.S. HIGHWAY 101 over Cordilleras Creek. It is classified as structurally deficient.
Component Ratings
The riding surface — evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
U.S. HIGHWAY 101 is a 96-year-old bridge located 04-Sm-101-7.13-Rdwc in San Mateo County, California. The bridge carries U.S. HIGHWAY 101 over Cordilleras Creek with 10 traffic lanes, handling approximately 195K vehicles per day. Built in 1930 and reconstructed in 1971, the structure spans 10.1 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
U.S. HIGHWAY 101 has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
U.S. HIGHWAY 101 was built in 1930 and reconstructed in 1971, making it 96 years old. The average bridge age in the United States is 48 years.
U.S. HIGHWAY 101 carries approximately 195K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 10.1 meters long and located on U.S. HIGHWAY 101 in 04-Sm-101-7.13-Rdwc, San Mateo County, California.
Yes, U.S. HIGHWAY 101 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
U.S. HIGHWAY 101 is located 04-Sm-101-7.13-Rdwc in San Mateo County, California. The bridge carries U.S. HIGHWAY 101 over Cordilleras Creek. Its coordinates are 37.500292, -122.240336. It is maintained by State Highway Agency.
U.S. HIGHWAY 101 carries U.S. HIGHWAY 101 over Cordilleras Creek. The bridge is 10.1 meters long and was built in 1930, with reconstruction in 1971.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.