Elko County Bridge Report Card
Elko County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Elko County, Nevada
Elko County has 221 bridges in the National Bridge Inventory, with 5 rated poor and 13 rated scour-critical. Its poor-condition share of 2.3% is above the 1.0% statewide average. Poor-condition bridges carry about 10,152 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Elko County a Bridge Condition Exposure Score of 81/100 (B). The county has 221 bridges in the National Bridge Inventory, including 5 in poor condition and 13 rated scour-critical. Poor-condition bridges carry about 10,152 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 2.3% | 4.5 |
| Poor-condition traffic exposure | 25 | 1.4% of measured traffic | 1.0 |
| Scour-critical bridge share | 20 | 5.9% | 11.8 |
| Average age vs national baseline | 10 | 51 years vs 48 nationally | 1.2 |
| Traffic-data completeness | 5 | 725,896 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 2.3% |
| State Poor-Condition Share | 1.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.9% |
| Average Bridge Age | 51 years |
| Poor-Condition Traffic Exposure | 10,152 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Elko County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| SR 229/halleck RD over Humboldt River | Poor condition + traffic exposure | Poor | 260 | 1965 |
| Idaho ST over Dry Wash | Poor condition + traffic exposure | Poor | 6,700 | 1974 |
| I 80 over Uprr | Poor condition + traffic exposure | Poor | 3,150 | 1976 |
| 1096: Marys River over Marys River | Poor condition + traffic exposure | Poor | 30 | 1991 |
| Fr El49 over Uprr | Poor condition + traffic exposure | Poor | 12 | 1933 |
| 12th ST over Humboldt Rvr | Scour-critical foundation rating | Fair | 18,400 | 1979 |
| SR 227/lamoille RD over Water ST Sp&uprr&hmblt R | Scour-critical foundation rating | Good | 6,900 | 1980 |
| I 80 over N. Fork Humboldt River | Scour-critical foundation rating | Good | 4,525 | 1962 |
| I 80 over N. Fork Humboldt River | Scour-critical foundation rating | Good | 4,525 | 1962 |
| I 80 over Nnrr & E. Squaw Creek | Scour-critical foundation rating | Fair | 3,450 | 1974 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.