INTERSTATE 580 WB
INTERSTATE 580 WB in 04-Ala-580-19.35-Ple, Alameda County, California received a condition grade of B (70/100). Built in 1994, the bridge carries 127K vehicles daily on INTERSTATE 580 WB over Demarcus BLVD (Bartd).
INTERSTATE 580 WB carries a B on the BridgeSafety Condition Score with 70/100. 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 1994, making it 32 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. INTERSTATE 580 WB carries an average daily traffic count of 127,000 vehicles, with 6 lane(s) crossing Demarcus BLVD (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 580 WB is a 32-year-old bridge located 04-Ala-580-19.35-Ple in Alameda County, California. The bridge carries INTERSTATE 580 WB over Demarcus BLVD (Bartd) with 6 traffic lanes, handling approximately 127K vehicles per day. Built in 1994 and reconstructed in 2015, the structure spans 48.1 meters.
The bridge received a Condition Grade of B (70/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 580 WB has a Condition Score of 70/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 580 WB was built in 1994 and reconstructed in 2015, making it 32 years old. The average bridge age in the United States is 48 years.
INTERSTATE 580 WB carries approximately 127K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 48.1 meters long and located on INTERSTATE 580 WB in 04-Ala-580-19.35-Ple, Alameda County, California.
No, INTERSTATE 580 WB 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 580 WB is located 04-Ala-580-19.35-Ple in Alameda County, California. The bridge carries INTERSTATE 580 WB over Demarcus BLVD (Bartd). Its coordinates are 37.702006, -121.898375. It is maintained by State Highway Agency.
INTERSTATE 580 WB carries INTERSTATE 580 WB over Demarcus BLVD (Bartd). The bridge is 48.1 meters long and was built in 1994, with reconstruction in 2015.
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.