I 710
I 710 in 07-La-710-22.45-Cmrc, Los Angeles County, California received a condition grade of B (67/100). Built in 1955, the bridge carries 217K vehicles daily on I 710 over Washington BLVD.
I 710 carries a B on the BridgeSafety Condition Score with 67/100. 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 1955 and is now 71 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. I 710 carries an average daily traffic count of 217,000 vehicles, with 10 lane(s) crossing Washington BLVD. 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
I 710 is a 71-year-old bridge located 07-La-710-22.45-Cmrc in Los Angeles County, California. The bridge carries I 710 over Washington BLVD with 10 traffic lanes, handling approximately 217K vehicles per day. Built in 1955 and reconstructed in 1967, the structure spans 32 meters.
The bridge received a Condition Grade of B (67/100) 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
I 710 has a Condition Score of 67/100 (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.
I 710 was built in 1955 and reconstructed in 1967, making it 71 years old. The average bridge age in the United States is 48 years.
I 710 carries approximately 217K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 32 meters long and located on I 710 in 07-La-710-22.45-Cmrc, Los Angeles County, California.
No, I 710 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I 710 is located 07-La-710-22.45-Cmrc in Los Angeles County, California. The bridge carries I 710 over Washington BLVD. Its coordinates are 34.004547, -118.172789. It is maintained by State Highway Agency.
I 710 carries I 710 over Washington BLVD. The bridge is 32 meters long and was built in 1955, with reconstruction in 1967.
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.