Chippewa County Bridge Report Card
Chippewa County scores 62 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Chippewa County, Michigan
Chippewa County has 112 bridges in the National Bridge Inventory, with 13 rated poor and 6 rated scour-critical. Its poor-condition share of 11.6% is above the 11.0% statewide average. Poor-condition bridges carry about 6,313 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Chippewa County a Bridge Condition Exposure Score of 62/100 (D). The county has 112 bridges in the National Bridge Inventory, including 13 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 6,313 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 | 11.6% | 23.2 |
| Poor-condition traffic exposure | 25 | 3.8% of measured traffic | 2.9 |
| Scour-critical bridge share | 20 | 5.4% | 10.7 |
| Average age vs national baseline | 10 | 50 years vs 48 nationally | 1.0 |
| Traffic-data completeness | 5 | 164,316 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 | 11.6% |
| State Poor-Condition Share | 11.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.4% |
| Average Bridge Age | 50 years |
| Poor-Condition Traffic Exposure | 6,313 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Chippewa County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Old Mackinac Trail over Pine River | Poor condition + traffic exposure | Poor | 216 | 1931 |
| Curley Lewis Fh42 over Roxbury Creek | Poor condition + traffic exposure | Poor | 83 | 1974 |
| 12 Mile Road over Charlotte River | Poor condition + traffic exposure | Poor | 50 | 1907 |
| Huckleberry Road over Carp River | Poor condition + traffic exposure | Poor | 22 | 1965 |
| M-129|pickford RD over Fletcher Creek | Poor condition + traffic exposure | Poor | 3,344 | 1929 |
| M-28 over Hendrie River | Poor condition + traffic exposure | Poor | 2,127 | 1960 |
| Mackinac Trail over Chub Creek | Poor condition + traffic exposure | Poor | 216 | 1933 |
| Riverside Drive over Little Munuscong R | Poor condition + traffic exposure | Poor | 111 | 1977 |
| North Hulbert Road over Tahquamenon River | Poor condition + traffic exposure | Poor | 54 | 1986 |
| East-west RD over Roxbury Creek | Poor condition + traffic exposure | Poor | 30 | 1947 |
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.