I 80 EB
I 80 EB in 04-Ala-080-2.00-Oak, Alameda County, California received a condition grade of D (37/100). Built in 1939, the bridge carries 134K vehicles daily on I 80 EB over Utility Tunnel & Puc.
I 80 EB carries a D on the BridgeSafety Condition Score with 37/100. One or more primary components is rated in fair-to-poor condition; the bridge typically appears in state transportation plans for rehabilitation or replacement within the next funding cycle.
The bridge was built in 1939, making it 87 years old — well beyond the typical 50-year design life of bridges constructed in that era. Bridges of this vintage usually need substantial rehabilitation or replacement once their original components have aged out, regardless of current condition ratings. I 80 EB carries an average daily traffic count of 134,264 vehicles, with 9 lane(s) crossing Utility Tunnel & Puc. 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
I 80 EB is a 87-year-old bridge located 04-Ala-080-2.00-Oak in Alameda County, California. The bridge carries I 80 EB over Utility Tunnel & Puc with 9 traffic lanes, handling approximately 134K vehicles per day. Built in 1939 and reconstructed in 1981, the structure spans 22.6 meters.
The bridge received a Condition Grade of D (37/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 5/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 80 EB has a Condition Score of 37/100 (Grade D). Its deck is rated 5/9, superstructure 5/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 80 EB was built in 1939 and reconstructed in 1981, making it 87 years old. The average bridge age in the United States is 48 years.
I 80 EB carries approximately 134K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 22.6 meters long and located on I 80 EB in 04-Ala-080-2.00-Oak, Alameda County, California.
No, I 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.
I 80 EB is located 04-Ala-080-2.00-Oak in Alameda County, California. The bridge carries I 80 EB over Utility Tunnel & Puc. Its coordinates are 37.824392, -122.313872. It is maintained by State Highway Agency.
I 80 EB carries I 80 EB over Utility Tunnel & Puc. The bridge is 22.6 meters long and was built in 1939, with reconstruction in 1981.
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.