STATE ROUTE 57
STATE ROUTE 57 in 07-La-057-R6.75-Pom, Los Angeles County, California received a condition grade of F (0/100). Built in 1972, the bridge carries 146K vehicles daily on STATE ROUTE 57 over Pomona Boulevard Drain. It is classified as structurally deficient.
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 54-year-old bridge located 07-La-057-R6.75-Pom in Los Angeles County, California. The bridge carries STATE ROUTE 57 over Pomona Boulevard Drain with 10 traffic lanes, handling approximately 146K vehicles per day. Built in 1972, the structure spans 13.4 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
STATE ROUTE 57 has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
STATE ROUTE 57 was built in 1972, making it 54 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 57 carries approximately 146K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 13.4 meters long and located on STATE ROUTE 57 in 07-La-057-R6.75-Pom, Los Angeles County, California.
Yes, STATE ROUTE 57 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
STATE ROUTE 57 is located 07-La-057-R6.75-Pom in Los Angeles County, California. The bridge carries STATE ROUTE 57 over Pomona Boulevard Drain. Its coordinates are 34.052650, -117.802322. It is maintained by State Highway Agency.
STATE ROUTE 57 carries STATE ROUTE 57 over Pomona Boulevard Drain. The bridge is 13.4 meters long and was built in 1972.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.