US HIGHWAY 101 NB
US HIGHWAY 101 NB in 04-Sf-101-1.14-Sf, San Francisco County, California received a condition grade of B (75/100). Built in 1970, the bridge carries 195K vehicles daily on US HIGHWAY 101 NB over Bayshore BLVD Viaduct.
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
US HIGHWAY 101 NB is a 56-year-old bridge located 04-Sf-101-1.14-Sf in San Francisco County, California. The bridge carries US HIGHWAY 101 NB over Bayshore BLVD Viaduct with 10 traffic lanes, handling approximately 195K vehicles per day. Built in 1970, the structure spans 196.6 meters.
The bridge received a Condition Grade of B (75/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
US HIGHWAY 101 NB has a Condition Score of 75/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
US HIGHWAY 101 NB was built in 1970, making it 56 years old. The average bridge age in the United States is 48 years.
US HIGHWAY 101 NB carries approximately 195K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 196.6 meters long and located on US HIGHWAY 101 NB in 04-Sf-101-1.14-Sf, San Francisco County, California.
No, US HIGHWAY 101 NB is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
US HIGHWAY 101 NB is located 04-Sf-101-1.14-Sf in San Francisco County, California. The bridge carries US HIGHWAY 101 NB over Bayshore BLVD Viaduct. Its coordinates are 37.723981, -122.401089. It is maintained by State Highway Agency.
US HIGHWAY 101 NB carries US HIGHWAY 101 NB over Bayshore BLVD Viaduct. The bridge is 196.6 meters long and was built 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.