STATE ROUTE 55
STATE ROUTE 55 in 12-Ora-055-R7.87-Sa, Orange County, California received a condition grade of B (65/100). Built in 1966, the bridge carries 236K vehicles daily on STATE ROUTE 55 over Dyer RD.
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 55 is a 60-year-old bridge located 12-Ora-055-R7.87-Sa in Orange County, California. The bridge carries STATE ROUTE 55 over Dyer RD with 12 traffic lanes, handling approximately 236K vehicles per day. Built in 1966 and reconstructed in 2013, the structure spans 68 meters.
The bridge received a Condition Grade of B (65/100) 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 55 has a Condition Score of 65/100 (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 55 was built in 1966 and reconstructed in 2013, making it 60 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 55 carries approximately 236K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 68 meters long and located on STATE ROUTE 55 in 12-Ora-055-R7.87-Sa, Orange County, California.
No, STATE ROUTE 55 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 55 is located 12-Ora-055-R7.87-Sa in Orange County, California. The bridge carries STATE ROUTE 55 over Dyer RD. Its coordinates are 33.708311, -117.851661. It is maintained by State Highway Agency.
STATE ROUTE 55 carries STATE ROUTE 55 over Dyer RD. The bridge is 68 meters long and was built in 1966, 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.