46 Mile Road over Forty Seven Mile Creek
Menominee County, Michigan · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 46 Mile Road over Forty Seven Mile Creek in Menominee 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 1977, making it 48 years old at the 2025 inventory.
- It carries about 20 vehicles a day.
- Its listed owner is the county highway agency.
- It is one of 41 of the 96 inventoried bridges in Menominee County rated fair (42.7%); 9 (9.4%) 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 June 2023, on a 24-month routine inspection cycle.
- 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 → (45.78323, -87.37352)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel culvert |
| Length | about 33 ft |
| Location | 1.5 Mi. SW of Perronville |
| NBI structure number | 000000000006851 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Menominee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-41 In Menominee over Menominee River | 2005 | 20,760 | Good |
| US-41 over Canadian National RR | 1998 | 20,760 | Good |
| 26TH Street over Menominee River | 1976 | 8,450 | Fair |
| 1ST Street over Menominee River | 1972 | 7,640 | Fair |
| Us-2|us-41 over Big Cedar River | 1932 | 6,417 | Fair |
| Us-2|us-41 over Wilson Creek | 1931 | 6,417 | Fair |
All bridges nearby: Menominee County, MI bridge conditions · every bridge in Menominee County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.