US HIGHWAY 101 SB
US HIGHWAY 101 SB in 07-La-101-7.84-La, Los Angeles County, California received a condition grade of C (56/100). Built in 1954, the bridge carries 146K vehicles daily on US HIGHWAY 101 SB over Highland-NB 101 On Ramp. 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
US HIGHWAY 101 SB is a 72-year-old bridge located 07-La-101-7.84-La in Los Angeles County, California. The bridge carries US HIGHWAY 101 SB over Highland-NB 101 On Ramp with 4 traffic lanes, handling approximately 146K vehicles per day. Built in 1954 and reconstructed in 1977, the structure spans 136.9 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 4/9 (poor), superstructure 7/9 (good), and substructure 7/9 (good). 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
US HIGHWAY 101 SB has a Condition Score of 56/100 (Grade C). Its deck is rated 4/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is classified as structurally deficient.
US HIGHWAY 101 SB was built in 1954 and reconstructed in 1977, making it 72 years old. The average bridge age in the United States is 48 years.
US HIGHWAY 101 SB carries approximately 146K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 136.9 meters long and located on US HIGHWAY 101 SB in 07-La-101-7.84-La, Los Angeles County, California.
Yes, US HIGHWAY 101 SB 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.
US HIGHWAY 101 SB is located 07-La-101-7.84-La in Los Angeles County, California. The bridge carries US HIGHWAY 101 SB over Highland-NB 101 On Ramp. Its coordinates are 34.111694, -118.335447. It is maintained by State Highway Agency.
US HIGHWAY 101 SB carries US HIGHWAY 101 SB over Highland-NB 101 On Ramp. The bridge is 136.9 meters long and was built in 1954, with reconstruction in 1977.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.