STATE ROUTE 57
STATE ROUTE 57 in 12-Ora-057-19.33-Ful, Orange County, California received a condition grade of B (67/100). Built in 1970, the bridge carries 245K vehicles daily on STATE ROUTE 57 over Rolling Hills DR.
STATE ROUTE 57 carries a B on the BridgeSafety Condition Score with 67/100. 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 1970 and is now 56 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. STATE ROUTE 57 carries an average daily traffic count of 245,000 vehicles, with 11 lane(s) crossing Rolling Hills DR. 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
STATE ROUTE 57 is a 56-year-old bridge located 12-Ora-057-19.33-Ful in Orange County, California. The bridge carries STATE ROUTE 57 over Rolling Hills DR with 11 traffic lanes, handling approximately 245K vehicles per day. Built in 1970 and reconstructed in 2013, the structure spans 40.5 meters.
The bridge received a Condition Grade of B (67/100) 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
STATE ROUTE 57 has a Condition Score of 67/100 (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.
STATE ROUTE 57 was built in 1970 and reconstructed in 2013, making it 56 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 57 carries approximately 245K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 40.5 meters long and located on STATE ROUTE 57 in 12-Ora-057-19.33-Ful, Orange County, California.
No, STATE ROUTE 57 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
STATE ROUTE 57 is located 12-Ora-057-19.33-Ful in Orange County, California. The bridge carries STATE ROUTE 57 over Rolling Hills DR. Its coordinates are 33.903369, -117.880808. It is maintained by State Highway Agency.
STATE ROUTE 57 carries STATE ROUTE 57 over Rolling Hills DR. The bridge is 40.5 meters long and was built in 1970, with reconstruction in 2013.
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.