M-149 over Dufour Creek
Schoolcraft County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M-149 over Dufour Creek in Schoolcraft County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2014, making it 11 years old at the 2025 inventory.
- It carries about 430 vehicles a day (traffic count year 2014).
- Its listed owner is the state highway agency.
- It is one of 17 of the 56 inventoried bridges in Schoolcraft County rated good (30.4%); 3 (5.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (45.93444, -86.34452)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 23 ft |
| Location | 2.4 Mi N of Thompson |
| NBI structure number | 000000000009672 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
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.