ROUTE 580
ROUTE 580 in 04-Ala-580-44.51-Oak, Alameda County, California received a condition grade of C (59/100). Built in 1961, the bridge carries 201K vehicles daily on ROUTE 580 over Piedmont Broadway Rich.
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
ROUTE 580 is a 65-year-old bridge located 04-Ala-580-44.51-Oak in Alameda County, California. The bridge carries ROUTE 580 over Piedmont Broadway Rich with 9 traffic lanes, handling approximately 201K vehicles per day. Built in 1961, the structure spans 325 meters.
The bridge received a Condition Grade of C (59/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 5/9 (fair), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
ROUTE 580 has a Condition Score of 59/100 (Grade C). Its deck is rated 5/9, superstructure 5/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
ROUTE 580 was built in 1961, making it 65 years old. The average bridge age in the United States is 48 years.
ROUTE 580 carries approximately 201K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 325 meters long and located on ROUTE 580 in 04-Ala-580-44.51-Oak, Alameda County, California.
No, ROUTE 580 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
ROUTE 580 is located 04-Ala-580-44.51-Oak in Alameda County, California. The bridge carries ROUTE 580 over Piedmont Broadway Rich. Its coordinates are 37.821078, -122.256756. It is maintained by State Highway Agency.
ROUTE 580 carries ROUTE 580 over Piedmont Broadway Rich. The bridge is 325 meters long and was built in 1961.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.