INTERSTATE 680
INTERSTATE 680 in 04-Cc-680-R7.55-Dnvl, Contra Costa County, California received a condition grade of B (61/100). Built in 1964, the bridge carries 192K vehicles daily on INTERSTATE 680 over Diablo Road.
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
INTERSTATE 680 is a 62-year-old bridge located 04-Cc-680-R7.55-Dnvl in Contra Costa County, California. The bridge carries INTERSTATE 680 over Diablo Road with 9 traffic lanes, handling approximately 192K vehicles per day. Built in 1964 and reconstructed in 1994, the structure spans 44.8 meters.
The bridge received a Condition Grade of B (61/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 680 has a Condition Score of 61/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 680 was built in 1964 and reconstructed in 1994, making it 62 years old. The average bridge age in the United States is 48 years.
INTERSTATE 680 carries approximately 192K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 44.8 meters long and located on INTERSTATE 680 in 04-Cc-680-R7.55-Dnvl, Contra Costa County, California.
No, INTERSTATE 680 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
INTERSTATE 680 is located 04-Cc-680-R7.55-Dnvl in Contra Costa County, California. The bridge carries INTERSTATE 680 over Diablo Road. Its coordinates are 37.822817, -121.993342. It is maintained by State Highway Agency.
INTERSTATE 680 carries INTERSTATE 680 over Diablo Road. The bridge is 44.8 meters long and was built in 1964, with reconstruction in 1994.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.