I 5 TRUCK
I 5 TRUCK in 07-La-005s-C45.49-La, Los Angeles County, California received a condition grade of C (52/100). Built in 1955, the bridge carries 210K vehicles daily on I 5 TRUCK over SR 14 (Sierra HWY).
I 5 TRUCK carries a C on the BridgeSafety Condition Score with 52/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
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 5 TRUCK carries an average daily traffic count of 209,925 vehicles, with 4 lane(s) crossing SR 14 (Sierra HWY). 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 5 TRUCK is a 71-year-old bridge located 07-La-005s-C45.49-La in Los Angeles County, California. The bridge carries I 5 TRUCK over SR 14 (Sierra HWY) with 4 traffic lanes, handling approximately 210K vehicles per day. Built in 1955 and reconstructed in 1984, the structure spans 75 meters.
The bridge received a Condition Grade of C (52/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 7/9 (good), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 5 TRUCK has a Condition Score of 52/100 (Grade C). Its deck is rated 5/9, superstructure 7/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 5 TRUCK was built in 1955 and reconstructed in 1984, making it 71 years old. The average bridge age in the United States is 48 years.
I 5 TRUCK carries approximately 210K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 75 meters long and located on I 5 TRUCK in 07-La-005s-C45.49-La, Los Angeles County, California.
No, I 5 TRUCK 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 5 TRUCK is located 07-La-005s-C45.49-La in Los Angeles County, California. The bridge carries I 5 TRUCK over SR 14 (Sierra HWY). Its coordinates are 34.333639, -118.505025. It is maintained by State Highway Agency.
I 5 TRUCK carries I 5 TRUCK over SR 14 (Sierra HWY). The bridge is 75 meters long and was built in 1955, with reconstruction in 1984.
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.