INTERSTATE 5
INTERSTATE 5 in 12-Ora-005-27.53-Irvn, Orange County, California received a condition grade of B (70/100). Built in 1992, the bridge carries 316K vehicles daily on INTERSTATE 5 over State Route 261.
INTERSTATE 5 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 1992, making it 34 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. INTERSTATE 5 carries an average daily traffic count of 316,400 vehicles, with 14 lane(s) crossing State Route 261. 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 34-year-old bridge located 12-Ora-005-27.53-Irvn in Orange County, California. The bridge carries INTERSTATE 5 over State Route 261 with 14 traffic lanes, handling approximately 316K vehicles per day. Built in 1992, the structure spans 62.5 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 5/9 (fair), 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 70/100 (Grade B). Its deck is rated 7/9, superstructure 5/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 5 was built in 1992, making it 34 years old. The average bridge age in the United States is 48 years.
INTERSTATE 5 carries approximately 316K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 62.5 meters long and located on INTERSTATE 5 in 12-Ora-005-27.53-Irvn, 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-005-27.53-Irvn in Orange County, California. The bridge carries INTERSTATE 5 over State Route 261. Its coordinates are 33.718342, -117.792828. It is maintained by State Highway Agency.
INTERSTATE 5 carries INTERSTATE 5 over State Route 261. The bridge is 62.5 meters long and was built in 1992.
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.