INTERSTATE 80 EB
INTERSTATE 80 EB in 04-Cc-080-13.50, Contra Costa County, California received a condition grade of B (65/100). Built in 1958, the bridge carries 128K vehicles daily on INTERSTATE 80 EB over Carquinez Strait Up RR.
INTERSTATE 80 EB carries a B on the BridgeSafety Condition Score with 65/100. 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 1958 and is now 68 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 EB carries an average daily traffic count of 128,000 vehicles, with 4 lane(s) crossing Carquinez Strait Up RR. 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 EB is a 68-year-old bridge located 04-Cc-080-13.50 in Contra Costa County, California. The bridge carries INTERSTATE 80 EB over Carquinez Strait Up RR with 4 traffic lanes, handling approximately 128K vehicles per day. Built in 1958, the structure spans 1587.7 meters.
The bridge received a Condition Grade of B (65/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (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
INTERSTATE 80 EB has a Condition Score of 65/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 80 EB was built in 1958, making it 68 years old. The average bridge age in the United States is 48 years.
INTERSTATE 80 EB carries approximately 128K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 1587.7 meters long and located on INTERSTATE 80 EB in 04-Cc-080-13.50, Contra Costa County, California.
No, INTERSTATE 80 EB 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 EB is located 04-Cc-080-13.50 in Contra Costa County, California. The bridge carries INTERSTATE 80 EB over Carquinez Strait Up RR. Its coordinates are 38.052222, -122.227778. It is maintained by State Highway Agency.
INTERSTATE 80 EB carries INTERSTATE 80 EB over Carquinez Strait Up RR. The bridge is 1587.7 meters long and was built in 1958.
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.