Luce County Bridge Report Card
Luce County scores 54 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Luce County, Michigan
Luce County has 28 bridges in the National Bridge Inventory, with 4 rated poor and 2 rated scour-critical. Its poor-condition share of 14.3% is above the 11.0% statewide average. Poor-condition bridges carry about 609 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Luce County a Bridge Condition Exposure Score of 54/100 (F). The county has 28 bridges in the National Bridge Inventory, including 4 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 609 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 | 14.3% | 28.6 |
| Poor-condition traffic exposure | 25 | 3.6% of measured traffic | 2.7 |
| Scour-critical bridge share | 20 | 7.1% | 14.3 |
| Average age vs national baseline | 10 | 41 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 16,764 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 | 14.3% |
| State Poor-Condition Share | 11.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 7.1% |
| Average Bridge Age | 41 years |
| Poor-Condition Traffic Exposure | 609 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Luce County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| M-123 over Auger Creek | Poor condition + traffic exposure | Poor | 574 | 1937 |
| County Road 421 over Tahquamenon River | Poor condition + traffic exposure | Poor | 20 | 1967 |
| County Road 418 over N Br Two Hearted River | Poor condition + traffic exposure | Poor | 10 | 1935 |
| Silver Creek Road over Silver Creek | Poor condition + traffic exposure | Poor | 5 | 1970 |
| M-28 over E Br Fox River | Scour-critical foundation rating | Fair | 1,763 | 1989 |
| M-123 over Tahquamenon River | Scour-critical foundation rating | Fair | 1,162 | 1978 |
| M-28 over E Br Teaspoon Creek | High traffic | Fair | 3,756 | 1993 |
| M-28 over E Br Sage River | High traffic | Fair | 2,127 | 1959 |
| M-28 over W Br Sage River | High traffic | Fair | 2,127 | 2001 |
| Dollarville Road over Teaspoon Creek | High traffic | Fair | 1,700 | 1951 |
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.