S710-S5 & N5-N710
S710-S5 & N5-N710 in 07-La-710-23.26-Cmrc, Los Angeles County, California received a condition grade of B (68/100). Built in 1956, the bridge carries 216K vehicles daily on S710-S5 & N5-N710 over I 5 NB & Telegraph.
S710-S5 & N5-N710 carries a B on the BridgeSafety Condition Score with 68/100. 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 1956 and is now 70 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. S710-S5 & N5-N710 carries an average daily traffic count of 216,000 vehicles, with 2 lane(s) crossing I 5 NB & Telegraph. 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
S710-S5 & N5-N710 is a 70-year-old bridge located 07-La-710-23.26-Cmrc in Los Angeles County, California. The bridge carries S710-S5 & N5-N710 over I 5 NB & Telegraph with 2 traffic lanes, handling approximately 216K vehicles per day. Built in 1956, the structure spans 140.8 meters.
The bridge received a Condition Grade of B (68/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
S710-S5 & N5-N710 has a Condition Score of 68/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
S710-S5 & N5-N710 was built in 1956, making it 70 years old. The average bridge age in the United States is 48 years.
S710-S5 & N5-N710 carries approximately 216K vehicles per day (average daily traffic). The bridge has 2 traffic lanes. It is 140.8 meters long and located on S710-S5 & N5-N710 in 07-La-710-23.26-Cmrc, Los Angeles County, California.
No, S710-S5 & N5-N710 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
S710-S5 & N5-N710 is located 07-La-710-23.26-Cmrc in Los Angeles County, California. The bridge carries S710-S5 & N5-N710 over I 5 NB & Telegraph. Its coordinates are 34.016242, -118.172686. It is maintained by State Highway Agency.
S710-S5 & N5-N710 carries S710-S5 & N5-N710 over I 5 NB & Telegraph. The bridge is 140.8 meters long and was built in 1956.
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.