23RD AVENUE
23RD AVENUE in 04-Ala-880-28.95-Oak, Alameda County, California received a condition grade of B (78/100). Built in 2020, the bridge carries 240K vehicles daily on 23RD AVENUE over Interstate 880.
23RD AVENUE carries a B on the BridgeSafety Condition Score with 78/100. 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 2020 and is 6 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. 23RD AVENUE carries an average daily traffic count of 240,000 vehicles, with 8 lane(s) crossing Interstate 880. 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
23RD AVENUE is a 6-year-old bridge located 04-Ala-880-28.95-Oak in Alameda County, California. The bridge carries 23RD AVENUE over Interstate 880 with 8 traffic lanes, handling approximately 240K vehicles per day. Built in 2020, the structure spans 207 meters.
The bridge received a Condition Grade of B (78/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
23RD AVENUE has a Condition Score of 78/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
23RD AVENUE was built in 2020, making it 6 years old. The average bridge age in the United States is 48 years.
23RD AVENUE carries approximately 240K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 207 meters long and located on 23RD AVENUE in 04-Ala-880-28.95-Oak, Alameda County, California.
No, 23RD AVENUE is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
23RD AVENUE is located 04-Ala-880-28.95-Oak in Alameda County, California. The bridge carries 23RD AVENUE over Interstate 880. Its coordinates are 37.776631, -122.236700. It is maintained by State Highway Agency.
23RD AVENUE carries 23RD AVENUE over Interstate 880. The bridge is 207 meters long and was built in 2020.
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.