INTERSTATE 80
INTERSTATE 80 in 04-Cc-080-2.50-Rch, Contra Costa County, California received a condition grade of B (67/100). Built in 1970, the bridge carries 179K vehicles daily on INTERSTATE 80 over Bartd.
INTERSTATE 80 carries a B on the BridgeSafety Condition Score with 67/100. 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 1970 and is now 56 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. INTERSTATE 80 carries an average daily traffic count of 179,000 vehicles, with 11 lane(s) crossing Bartd. 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
INTERSTATE 80 is a 56-year-old bridge located 04-Cc-080-2.50-Rch in Contra Costa County, California. The bridge carries INTERSTATE 80 over Bartd with 11 traffic lanes, handling approximately 179K vehicles per day. Built in 1970 and reconstructed in 1998, the structure spans 11.4 meters.
The bridge received a Condition Grade of B (67/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 80 has a Condition Score of 67/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 80 was built in 1970 and reconstructed in 1998, making it 56 years old. The average bridge age in the United States is 48 years.
INTERSTATE 80 carries approximately 179K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 11.4 meters long and located on INTERSTATE 80 in 04-Cc-080-2.50-Rch, Contra Costa County, California.
No, INTERSTATE 80 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 80 is located 04-Cc-080-2.50-Rch in Contra Costa County, California. The bridge carries INTERSTATE 80 over Bartd. Its coordinates are 37.931072, -122.324514. It is maintained by State Highway Agency.
INTERSTATE 80 carries INTERSTATE 80 over Bartd. The bridge is 11.4 meters long and was built in 1970, with reconstruction in 1998.
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.