U.S. HIGHWAY 101
U.S. HIGHWAY 101 in 04-Sf-101-0.77-Sf, San Francisco County, California received a condition grade of C (56/100). Built in 1954, the bridge carries 189K vehicles daily on U.S. HIGHWAY 101 over 3rd Street.
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 72-year-old bridge located 04-Sf-101-0.77-Sf in San Francisco County, California. The bridge carries U.S. HIGHWAY 101 over 3rd Street with 10 traffic lanes, handling approximately 189K vehicles per day. Built in 1954 and reconstructed in 1970, the structure spans 82.3 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 6/9 (fair), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
U.S. HIGHWAY 101 has a Condition Score of 56/100 (Grade C). Its deck is rated 5/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
U.S. HIGHWAY 101 was built in 1954 and reconstructed in 1970, making it 72 years old. The average bridge age in the United States is 48 years.
U.S. HIGHWAY 101 carries approximately 189K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 82.3 meters long and located on U.S. HIGHWAY 101 in 04-Sf-101-0.77-Sf, San Francisco County, California.
No, U.S. HIGHWAY 101 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
U.S. HIGHWAY 101 is located 04-Sf-101-0.77-Sf in San Francisco County, California. The bridge carries U.S. HIGHWAY 101 over 3rd Street. Its coordinates are 37.719128, -122.399328. It is maintained by State Highway Agency.
U.S. HIGHWAY 101 carries U.S. HIGHWAY 101 over 3rd Street. The bridge is 82.3 meters long and was built in 1954, with reconstruction in 1970.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.