INTERSTATE 580
INTERSTATE 580 in 04-Ala-580-11.04-Lvmr, Alameda County, California received a condition grade of F (0/100). Built in 1954, the bridge carries 197K vehicles daily on INTERSTATE 580 over Arroyo Seco. It is classified as structurally deficient.
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 is a 72-year-old bridge located 04-Ala-580-11.04-Lvmr in Alameda County, California. The bridge carries INTERSTATE 580 over Arroyo Seco with 13 traffic lanes, handling approximately 197K vehicles per day. Built in 1954 and reconstructed in 2015, the structure spans 14.3 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 580 has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
INTERSTATE 580 was built in 1954 and reconstructed in 2015, making it 72 years old. The average bridge age in the United States is 48 years.
INTERSTATE 580 carries approximately 197K vehicles per day (average daily traffic). The bridge has 13 traffic lanes. It is 14.3 meters long and located on INTERSTATE 580 in 04-Ala-580-11.04-Lvmr, Alameda County, California.
Yes, INTERSTATE 580 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
INTERSTATE 580 is located 04-Ala-580-11.04-Lvmr in Alameda County, California. The bridge carries INTERSTATE 580 over Arroyo Seco. Its coordinates are 37.702217, -121.746428. It is maintained by State Highway Agency.
INTERSTATE 580 carries INTERSTATE 580 over Arroyo Seco. The bridge is 14.3 meters long and was built in 1954, 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.