Island Road over Cox Drain
Clinton County, Michigan · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Island Road over Cox Drain in Clinton County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1981, making it 44 years old at the 2025 inventory.
- It carries about 180 vehicles a day (traffic count year 1981).
- Its listed owner is the county highway agency.
- It is one of 153 of the 215 inventoried bridges in Clinton County rated fair (71.2%); 34 (15.8%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (43.09008, -84.68228)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Steel culvert |
| Length | about 20 ft |
| Location | 0.1 W of Forest Hill Rd |
| NBI structure number | 000000000001982 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Clinton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-127 NB over Ferdun Creek | 1957 | 88,500 | Fair |
| US-127 SB over Coleman Rd | 1971 | 41,300 | Fair |
| US-127 NB over Coleman Rd | 1971 | 41,300 | Fair |
| I-96 over Husted & Landenburg Drn | 1957 | 38,938 | Fair |
| I-69 over Chandler Drain | 1973 | 37,978 | Fair |
| I-69 over Chandler Drain | 1973 | 37,978 | Fair |
All bridges nearby: Clinton County, MI bridge conditions · every bridge in Clinton County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.