I 580
I 580 in Reno, Washoe County, Nevada received a condition grade of B (68/100). Built in 1971, the bridge carries 163K vehicles daily on I 580 over Sr647 4th ST Sprr.
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 55-year-old bridge located Reno in Washoe County, Nevada. The bridge carries I 580 over Sr647 4th ST Sprr with 7 traffic lanes, handling approximately 163K vehicles per day. Built in 1971, the structure spans 140.5 meters.
The bridge received a Condition Grade of B (68/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), 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 68/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 580 was built in 1971, making it 55 years old. The average bridge age in the United States is 48 years.
I 580 carries approximately 163K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 140.5 meters long and located on I 580 in Reno, 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 Reno in Washoe County, Nevada. The bridge carries I 580 over Sr647 4th ST Sprr. Its coordinates are 39.533650, -119.787697. It is maintained by State Highway Agency.
I 580 carries I 580 over Sr647 4th ST Sprr. The bridge is 140.5 meters long and was built in 1971.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.