INTERSTATE 5
INTERSTATE 5 in 12-Ora-005-8.80-Sjcp, Orange County, California received a condition grade of B (69/100). Built in 1958, the bridge carries 155K vehicles daily on INTERSTATE 5 over San Juan Creek Road.
INTERSTATE 5 carries a B on the BridgeSafety Condition Score with 69/100. 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 1958 and is now 68 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 5 carries an average daily traffic count of 155,000 vehicles, with 12 lane(s) crossing San Juan Creek Road. 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 5 is a 68-year-old bridge located 12-Ora-005-8.80-Sjcp in Orange County, California. The bridge carries INTERSTATE 5 over San Juan Creek Road with 12 traffic lanes, handling approximately 155K vehicles per day. Built in 1958 and reconstructed in 1996, the structure spans 39.3 meters.
The bridge received a Condition Grade of B (69/100) 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 5 has a Condition Score of 69/100 (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 5 was built in 1958 and reconstructed in 1996, making it 68 years old. The average bridge age in the United States is 48 years.
INTERSTATE 5 carries approximately 155K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 39.3 meters long and located on INTERSTATE 5 in 12-Ora-005-8.80-Sjcp, Orange County, California.
No, INTERSTATE 5 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 5 is located 12-Ora-005-8.80-Sjcp in Orange County, California. The bridge carries INTERSTATE 5 over San Juan Creek Road. Its coordinates are 33.491292, -117.661800. It is maintained by State Highway Agency.
INTERSTATE 5 carries INTERSTATE 5 over San Juan Creek Road. The bridge is 39.3 meters long and was built in 1958, with reconstruction in 1996.
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.