Lincoln County Bridge Report Card
Lincoln County scores 54 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Lincoln County, Montana
Lincoln County has 191 bridges in the National Bridge Inventory, with 29 rated poor and 4 rated scour-critical. Its poor-condition share of 15.2% is above the 7.4% statewide average. Poor-condition bridges carry about 13,036 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Lincoln County a Bridge Condition Exposure Score of 54/100 (F). The county has 191 bridges in the National Bridge Inventory, including 29 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 13,036 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 | 15.2% | 30.4 |
| Poor-condition traffic exposure | 25 | 14.7% of measured traffic | 11.0 |
| Scour-critical bridge share | 20 | 2.1% | 4.2 |
| Average age vs national baseline | 10 | 49 years vs 48 nationally | 0.3 |
| Traffic-data completeness | 5 | 88,979 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 | 15.2% |
| State Poor-Condition Share | 7.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 2.1% |
| Average Bridge Age | 49 years |
| Poor-Condition Traffic Exposure | 13,036 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Lincoln County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| 384 Spar Lake Rd. over Spar CR | Poor condition + traffic exposure | Poor | 10 | 1955 |
| US 2 over Big Cherry Creek | Poor condition + traffic exposure | Poor | 5,295 | 1976 |
| US 2 over Kootenai River-rr | Poor condition + traffic exposure | Poor | 2,104 | 1942 |
| S 37 Fh 57 over Tobacco River | Poor condition + traffic exposure | Poor | 1,699 | 1971 |
| Kootenai River RD over Pipe Creek | Poor condition + traffic exposure | Poor | 702 | 1987 |
| S 37 Fh 57 over Cadette Creek | Poor condition + traffic exposure | Poor | 612 | 1971 |
| S 37 Fh 57 over Pinkham Creek | Poor condition + traffic exposure | Poor | 612 | 1971 |
| S 37 Fh 57 over Cripple Horse Creek | Poor condition + traffic exposure | Poor | 458 | 1974 |
| S 37 Fh 57 over Rock Gut | Poor condition + traffic exposure | Poor | 346 | 1974 |
| Homestead DR over Pinkham Creek 140 | Poor condition + traffic exposure | Poor | 100 | 1914 |
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.