STATE ROUTE 60
STATE ROUTE 60 in 08-Sbd-060-R9.94-Ont, San Bernardino County, California received a condition grade of B (68/100). Built in 1972, the bridge carries 200K vehicles daily on STATE ROUTE 60 over Milliken Avenue.
STATE ROUTE 60 carries a B on the BridgeSafety Condition Score with 68/100. 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 1972 and is now 54 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 200,000 vehicles, with 14 lane(s) crossing Milliken Avenue. 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 54-year-old bridge located 08-Sbd-060-R9.94-Ont in San Bernardino County, California. The bridge carries STATE ROUTE 60 over Milliken Avenue with 14 traffic lanes, handling approximately 200K vehicles per day. Built in 1972 and reconstructed in 1997, the structure spans 48 meters.
The bridge received a Condition Grade of B (68/100) 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 60 has a Condition Score of 68/100 (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 60 was built in 1972 and reconstructed in 1997, making it 54 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 60 carries approximately 200K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 48 meters long and located on STATE ROUTE 60 in 08-Sbd-060-R9.94-Ont, San Bernardino 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 08-Sbd-060-R9.94-Ont in San Bernardino County, California. The bridge carries STATE ROUTE 60 over Milliken Avenue. Its coordinates are 34.023761, -117.558586. It is maintained by State Highway Agency.
STATE ROUTE 60 carries STATE ROUTE 60 over Milliken Avenue. The bridge is 48 meters long and was built in 1972, with reconstruction in 1997.
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.