US 101 SB
US 101 SB in 07-La-101-1.57-La, Los Angeles County, California received a condition grade of B (64/100). Built in 1949, the bridge carries 175K vehicles daily on US 101 SB over I 110 101-110 Connectors.
US 101 SB carries a B on the BridgeSafety Condition Score with 64/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1949 and is now 77 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. US 101 SB carries an average daily traffic count of 175,000 vehicles, with 3 lane(s) crossing I 110 101-110 Connectors. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
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 101 SB is a 77-year-old bridge located 07-La-101-1.57-La in Los Angeles County, California. The bridge carries US 101 SB over I 110 101-110 Connectors with 3 traffic lanes, handling approximately 175K vehicles per day. Built in 1949, the structure spans 176.2 meters.
The bridge received a Condition Grade of B (64/100) 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 101 SB has a Condition Score of 64/100 (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 101 SB was built in 1949, making it 77 years old. The average bridge age in the United States is 48 years.
US 101 SB carries approximately 175K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 176.2 meters long and located on US 101 SB in 07-La-101-1.57-La, Los Angeles County, California.
No, US 101 SB 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 101 SB is located 07-La-101-1.57-La in Los Angeles County, California. The bridge carries US 101 SB over I 110 101-110 Connectors. Its coordinates are 34.061911, -118.248242. It is maintained by State Highway Agency.
US 101 SB carries US 101 SB over I 110 101-110 Connectors. The bridge is 176.2 meters long and was built in 1949.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.