INTERSTATE 10
INTERSTATE 10 in 07-La-010-38.51-Wcov, Los Angeles County, California received a condition grade of B (70/100). Built in 1961, the bridge carries 209K vehicles daily on INTERSTATE 10 over Grand AVE.
INTERSTATE 10 carries a B on the BridgeSafety Condition Score with 70/100. 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 1961 and is now 65 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. INTERSTATE 10 carries an average daily traffic count of 209,000 vehicles, with 11 lane(s) crossing Grand AVE. 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
INTERSTATE 10 is a 65-year-old bridge located 07-La-010-38.51-Wcov in Los Angeles County, California. The bridge carries INTERSTATE 10 over Grand AVE with 11 traffic lanes, handling approximately 209K vehicles per day. Built in 1961 and reconstructed in 2019, the structure spans 24.1 meters.
The bridge received a Condition Grade of B (70/100) 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
INTERSTATE 10 has a Condition Score of 70/100 (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.
INTERSTATE 10 was built in 1961 and reconstructed in 2019, making it 65 years old. The average bridge age in the United States is 48 years.
INTERSTATE 10 carries approximately 209K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 24.1 meters long and located on INTERSTATE 10 in 07-La-010-38.51-Wcov, Los Angeles County, California.
No, INTERSTATE 10 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
INTERSTATE 10 is located 07-La-010-38.51-Wcov in Los Angeles County, California. The bridge carries INTERSTATE 10 over Grand AVE. Its coordinates are 34.071536, -117.872497. It is maintained by State Highway Agency.
INTERSTATE 10 carries INTERSTATE 10 over Grand AVE. The bridge is 24.1 meters long and was built in 1961, with reconstruction in 2019.
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.