I 580
I 580 in 3/4mi N Of Plumb 3/4mi S, Washoe County, Nevada received a condition grade of B (78/100). Built in 1977, the bridge carries 170K vehicles daily on I 580 over Vassar ST.
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 580 is a 49-year-old bridge located 3/4mi N Of Plumb 3/4mi S in Washoe County, Nevada. The bridge carries I 580 over Vassar ST with 10 traffic lanes, handling approximately 170K vehicles per day. Built in 1977, the structure spans 36.5 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
I 580 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.
I 580 was built in 1977, making it 49 years old. The average bridge age in the United States is 48 years.
I 580 carries approximately 170K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 36.5 meters long and located on I 580 in 3/4mi N Of Plumb 3/4mi S, Washoe County, Nevada.
No, I 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.
I 580 is located 3/4mi N Of Plumb 3/4mi S in Washoe County, Nevada. The bridge carries I 580 over Vassar ST. Its coordinates are 39.512997, -119.781206. It is maintained by State Highway Agency.
I 580 carries I 580 over Vassar ST. The bridge is 36.5 meters long and was built in 1977.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.