County Hwy 581 over E Br Sturgeon River
Dickinson County, Michigan · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Hwy 581 over E Br Sturgeon River in Dickinson County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1927, making it 98 years old at the 2025 inventory.
- It carries about 406 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 7 of the 42 inventoried bridges in Dickinson County rated poor (16.7%); 7 (16.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now poor (deck 7 to 6, superstructure 7 to 6, substructure 7 to 3).
- Its most recent inspection on record is dated September 2024, on a 12-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (46.02761, -87.8345)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 7 | 3 | Serious condition |
Bridge details
| Structure | Concrete girder and floorbeam |
| Length | about 34 ft |
| Location | 2 Mi N of Felch |
| NBI structure number | 000000000002198 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Dickinson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-141 over Menominee River | 2011 | 8,000 | Good |
| Us-2|us-141 over Menominee River | 1981 | 6,759 | Fair |
| US-2 US-141 over E&ls RR | 1932 | 6,759 | Fair |
| US-2 over Sturgeon River | 2003 | 5,743 | Good |
| M-95 over Menominee River | 1973 | 5,620 | Fair |
| M-95 over Ford River | 1928 | 3,051 | Poor |
All bridges nearby: Dickinson County, MI bridge conditions · every bridge in Dickinson County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.