Bridge conditions in Lyon County, Nevada
54 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Lyon County tracks close to typical: 4 of its 54 inventoried bridges (7.4%) are rated poor, against a national rate of about 7%.
- 4 of the 54 bridges in Lyon County, Nevada, are rated in poor condition (7.4%) in the 2025 National Bridge Inventory, as of .
- 31 bridges (57.4%) are rated good and 19 (35.2%) fair.
- The median Lyon County bridge was built in 1970.
- The busiest poor-rated bridge is Rural Road over Truckee-carson Canal (built 1955), carrying about 274 vehicles a day.
Good 57.4% · Fair 35.2% · Poor 7.4% of 54 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rural Road over Truckee-carson Canal | 1955 | 274 | Poor |
| Shady Av over Gold Canyon Crk | 1945 | 128 | Poor |
| Old SR 3C E. Wk.r over East Fork Walker Rvr | 1970 | 85 | Poor |
| Old SR 3C over East Walker River | 1976 | 70 | Poor |
Busiest bridges in the county
| 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 |
| I 80W over Vine St Grade Sep MP47 | 1963 | 10,850 | Good |
| I 80E over SR427 Main St | 1963 | 10,850 | Fair |
| I 80W over SR427 Main St | 1963 | 10,850 | Fair |
| US 50 over Animal Undercrossing | 2013 | 7,800 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Nevada: Nevada bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.