Ravalli County Bridge Report Card
Ravalli County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Ravalli County, Montana
Ravalli County has 150 bridges in the National Bridge Inventory, with 12 rated poor and 8 rated scour-critical. Its poor-condition share of 8.0% is above the 7.4% statewide average. Poor-condition bridges carry about 4,468 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Ravalli County a Bridge Condition Exposure Score of 72/100 (C). The county has 150 bridges in the National Bridge Inventory, including 12 in poor condition and 8 rated scour-critical. Poor-condition bridges carry about 4,468 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 | 8.0% | 16.0 |
| Poor-condition traffic exposure | 25 | 1.4% of measured traffic | 1.0 |
| Scour-critical bridge share | 20 | 5.3% | 10.7 |
| Average age vs national baseline | 10 | 43 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 323,608 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 | 8.0% |
| State Poor-Condition Share | 7.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.3% |
| Average Bridge Age | 43 years |
| Poor-Condition Traffic Exposure | 4,468 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Ravalli County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Skalkaho HWY over Skalkaho Creek 053 | Poor condition + traffic exposure | Poor | 1,713 | 1941 |
| Quast LN over Surprise Ditch 060 | Poor condition + traffic exposure | Poor | 537 | 1918 |
| Meridian RD over Bear Creek 015 | Poor condition + traffic exposure | Poor | 100 | 1936 |
| Victor Crossing W over Bitterroot River 020 | Poor condition + traffic exposure | Poor | 746 | 1984 |
| Victor Crossing E over Bitterroot River 017 | Poor condition + traffic exposure | Poor | 746 | 1984 |
| Skalkaho HWY over Canal 058 | Poor condition + traffic exposure | Poor | 331 | 1941 |
| No Data Entered over Rock CR | Poor condition + traffic exposure | Poor | 136 | 1970 |
| Mid Burnt Fork RD over Bitterroot Canal 089 | Poor condition + traffic exposure | Poor | 100 | 1984 |
| No Data Entered over N F Losthorse CR | Poor condition + traffic exposure | Poor | 40 | 1953 |
| No Data Entered over E Fk Bitterroot Ri | Poor condition + traffic exposure | Poor | 9 | 1969 |
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.