Oceana County Bridge Report Card
Oceana County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Oceana County, Michigan
Oceana County has 101 bridges in the National Bridge Inventory, with 5 rated poor and 5 rated scour-critical. Its poor-condition share of 5.0% is at or below the 11.0% statewide average. Poor-condition bridges carry about 9,489 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Oceana County a Bridge Condition Exposure Score of 77/100 (C). The county has 101 bridges in the National Bridge Inventory, including 5 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 9,489 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 | 5.0% | 9.9 |
| Poor-condition traffic exposure | 25 | 4.5% of measured traffic | 3.4 |
| Scour-critical bridge share | 20 | 5.0% | 9.9 |
| Average age vs national baseline | 10 | 48 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 212,247 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 | 5.0% |
| State Poor-Condition Share | 11.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.0% |
| Average Bridge Age | 48 years |
| Poor-Condition Traffic Exposure | 9,489 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Oceana County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Us-31 SB over Log RD & Csx Rr (abn) | Poor condition + traffic exposure | Poor | 4,806 | 1975 |
| Us-31 SB over N Branch Pentwater River | Poor condition + traffic exposure | Poor | 4,413 | 1980 |
| 104th AVE over S Branch Pentwater River | Poor condition + traffic exposure | Poor | 150 | 1950 |
| 112th Avenue over No Br Pentwater River | Poor condition + traffic exposure | Poor | 100 | 1988 |
| 88th Avenue over N Br Pentwater River | Poor condition + traffic exposure | Poor | 20 | 1912 |
| M-20 over White River | Scour-critical foundation rating | Fair | 3,067 | 1963 |
| Garfield Road over South Branch White River | Scour-critical foundation rating | Fair | 1,950 | 1950 |
| 120 TH Avenue over N Br Pentwater River | Scour-critical foundation rating | Fair | 1,000 | 1953 |
| 194th AVE over Braton Creek | Scour-critical foundation rating | Fair | 452 | 1931 |
| Yale Road over N Branch White River | Scour-critical foundation rating | Fair | 20 | 1910 |
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.