INTERSTATE 5
INTERSTATE 5 in 12-Ora-005-6.69, Orange County, California received a condition grade of B (71/100). Built in 1962, the bridge carries 165K vehicles daily on INTERSTATE 5 over N5-N1 Connector.
INTERSTATE 5 carries a B on the BridgeSafety Condition Score with 71/100. 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 1962 and is now 64 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 165,400 vehicles, with 11 lane(s) crossing N5-N1 Connector. 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 64-year-old bridge located 12-Ora-005-6.69 in Orange County, California. The bridge carries INTERSTATE 5 over N5-N1 Connector with 11 traffic lanes, handling approximately 165K vehicles per day. Built in 1962 and reconstructed in 2018, the structure spans 69.8 meters.
The bridge received a Condition Grade of B (71/100) 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 71/100 (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 1962 and reconstructed in 2018, making it 64 years old. The average bridge age in the United States is 48 years.
INTERSTATE 5 carries approximately 165K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 69.8 meters long and located on INTERSTATE 5 in 12-Ora-005-6.69, 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-005-6.69 in Orange County, California. The bridge carries INTERSTATE 5 over N5-N1 Connector. Its coordinates are 33.466342, -117.668092. It is maintained by State Highway Agency.
INTERSTATE 5 carries INTERSTATE 5 over N5-N1 Connector. The bridge is 69.8 meters long and was built in 1962, with reconstruction in 2018.
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.