SR 55
SR 55 in 12-Ora-055-R4.58-Cms, Orange County, California received a condition grade of B (61/100). Built in 1973, the bridge carries 142K vehicles daily on SR 55 over Bristol Street.
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
SR 55 is a 53-year-old bridge located 12-Ora-055-R4.58-Cms in Orange County, California. The bridge carries SR 55 over Bristol Street with 8 traffic lanes, handling approximately 142K vehicles per day. Built in 1973, the structure spans 52.4 meters.
The bridge received a Condition Grade of B (61/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 5/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
SR 55 has a Condition Score of 61/100 (Grade B). Its deck is rated 7/9, superstructure 5/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
SR 55 was built in 1973, making it 53 years old. The average bridge age in the United States is 48 years.
SR 55 carries approximately 142K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 52.4 meters long and located on SR 55 in 12-Ora-055-R4.58-Cms, Orange County, California.
No, SR 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.
SR 55 is located 12-Ora-055-R4.58-Cms in Orange County, California. The bridge carries SR 55 over Bristol Street. Its coordinates are 33.671675, -117.888086. It is maintained by State Highway Agency.
SR 55 carries SR 55 over Bristol Street. The bridge is 52.4 meters long and was built in 1973.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.