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I 80W over SR427 Main St

Lyon County, Nevada · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

I 80W over SR427 Main St in Lyon County, Nevada, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1963, making it 62 years old at the 2025 inventory.
It carries about 10,850 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 19 of the 54 inventoried bridges in Lyon County rated fair (35.2%); 4 (7.4%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 229 ft
Location	Wadsworth - Fernley
NBI structure number	I 717W
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Nevada department of transportation.

Bridge	Built	Vehicles/day	Condition
US 95A over UPRR	2006	29,500	Good
US 50 over Ditch	2012	18,600	Good
SR 822 Dayton Vly over Carson Rvr	1956	11,200	Fair
I 80E over Sprr	1963	10,850	Good
I 80W over Sprr	1963	10,850	Good
I 80E over Vine St Grade Sep MP47	1963	10,850	Good