Bridge conditions in Oceana County, Michigan
101 inventoried bridges · 5 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Oceana County tracks close to typical: 5 of its 101 inventoried bridges (5.0%) are rated poor, against a national rate of about 7%.
- 5 of the 101 bridges in Oceana County, Michigan, are rated in poor condition (5.0%) in the 2025 National Bridge Inventory, as of .
- 32 bridges (31.7%) are rated good and 64 (63.4%) fair.
- The median Oceana County bridge was built in 1977.
- The busiest poor-rated bridge is US-31 SB over Log Rd & CSX RR (abn) (built 1975), carrying about 4,806 vehicles a day.
Good 31.7% · Fair 63.4% · Poor 5.0% of 101 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-31 SB over Log Rd & CSX RR (abn) | 1975 | 4,806 | Poor |
| US-31 SB over N Branch Pentwater River | 1980 | 4,413 | Poor |
| 104TH Ave over S Branch Pentwater River | 1950 | 150 | Poor |
| 112TH Avenue over No Br Pentwater River | 1988 | 100 | Poor |
| 88TH Avenue over N Br Pentwater River | 1912 | 20 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-31 SB over Grant Road | 1975 | 10,300 | Fair |
| US-31 NB over Grant Road | 1975 | 10,300 | Fair |
| US-31BR over Russell Creek | 2020 | 8,800 | Good |
| US-31 SB over Log Rd & CSX RR (abn) | 1975 | 8,500 | Fair |
| US-31 NB over Log Rd & CSX RR (abn) | 1975 | 8,500 | Fair |
| US-31 SB over Buchanan Road | 1975 | 8,500 | Fair |
| US-31 NB over Buchanan Road | 1975 | 8,500 | Fair |
| US-31 SB over Hart-montague Trail | 1974 | 6,360 | Fair |
| US-31 NB over Hart-montague Trail | 1974 | 6,360 | Fair |
| US-31 SB over Oceana Drive (old US-31) | 1974 | 6,360 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Michigan: Michigan bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.