Driggs River Road over Diversion Ditch
Schoolcraft County, Michigan · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Driggs River Road over Diversion Ditch in Schoolcraft County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 30 vehicles a day (traffic count year 2023).
- It is one of 36 of the 56 inventoried bridges in Schoolcraft County rated fair (64.3%); 3 (5.4%) 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 → (46.31683, -86.10617)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 28 ft |
| Location | Sec 7 T45N R14W |
| NBI structure number | 000031510-00120 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Schoolcraft County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| M-94 over Manistique River | 1918 | 10,220 | Fair |
| US-2 over Wcl RR | 1979 | 5,327 | Fair |
| US-2 over Manistique River | 1983 | 4,300 | Fair |
| M-94 over Indian River | 1954 | 2,701 | Good |
| M-28 over Commencement Creek | 1954 | 1,973 | Fair |
| M-28 over Creighton Creek | 1952 | 1,973 | Fair |
All bridges nearby: Schoolcraft County, MI bridge conditions · every bridge in Schoolcraft County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.