ROUTE 5
ROUTE 5 in 12-Ora-005-30.26-Tus, Orange County, California received a condition grade of B (60/100). Built in 1955, the bridge carries 330K vehicles daily on ROUTE 5 over Route 55.
ROUTE 5 carries a B on the BridgeSafety Condition Score with 60/100. 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 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. ROUTE 5 carries an average daily traffic count of 329,500 vehicles, with 12 lane(s) crossing Route 55. 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
ROUTE 5 is a 71-year-old bridge located 12-Ora-005-30.26-Tus in Orange County, California. The bridge carries ROUTE 5 over Route 55 with 12 traffic lanes, handling approximately 330K vehicles per day. Built in 1955 and reconstructed in 1995, the structure spans 62.8 meters.
The bridge received a Condition Grade of B (60/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
ROUTE 5 has a Condition Score of 60/100 (Grade B). Its deck is rated 5/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
ROUTE 5 was built in 1955 and reconstructed in 1995, making it 71 years old. The average bridge age in the United States is 48 years.
ROUTE 5 carries approximately 330K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 62.8 meters long and located on ROUTE 5 in 12-Ora-005-30.26-Tus, Orange County, California.
No, ROUTE 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.
ROUTE 5 is located 12-Ora-005-30.26-Tus in Orange County, California. The bridge carries ROUTE 5 over Route 55. Its coordinates are 33.740831, -117.833514. It is maintained by State Highway Agency.
ROUTE 5 carries ROUTE 5 over Route 55. The bridge is 62.8 meters long and was built in 1955, with reconstruction in 1995.
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.