STATE ROUTE 60
STATE ROUTE 60 in 07-La-060-19.10-Idy, Los Angeles County, California received a condition grade of A (80/100). Built in 1966, the bridge carries 204K vehicles daily on STATE ROUTE 60 over Stoner Creek Road.
STATE ROUTE 60 carries an A on the BridgeSafety Condition Score with 80/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 1966 and is now 60 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 60 carries an average daily traffic count of 204,000 vehicles, with 8 lane(s) crossing Stoner Creek Road. 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 60 is a 60-year-old bridge located 07-La-060-19.10-Idy in Los Angeles County, California. The bridge carries STATE ROUTE 60 over Stoner Creek Road with 8 traffic lanes, handling approximately 204K vehicles per day. Built in 1966 and reconstructed in 2010, the structure spans 29.3 meters.
The bridge received a Condition Grade of A (80/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
STATE ROUTE 60 has a Condition Score of 80/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
STATE ROUTE 60 was built in 1966 and reconstructed in 2010, making it 60 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 60 carries approximately 204K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 29.3 meters long and located on STATE ROUTE 60 in 07-La-060-19.10-Idy, Los Angeles County, California.
No, STATE ROUTE 60 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 60 is located 07-La-060-19.10-Idy in Los Angeles County, California. The bridge carries STATE ROUTE 60 over Stoner Creek Road. Its coordinates are 33.994297, -117.911897. It is maintained by State Highway Agency.
STATE ROUTE 60 carries STATE ROUTE 60 over Stoner Creek Road. The bridge is 29.3 meters long and was built in 1966, with reconstruction in 2010.
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.