Sth Irr (sth 47) over W Br Wolf River
Menominee County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth Irr (sth 47) over W Br Wolf River in Menominee County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2004, making it 21 years old at the 2025 inventory.
- It carries about 510 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 11 of the 25 inventoried bridges in Menominee County rated good (44.0%); 2 (8.0%) 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 May 2023, on a 48-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 → (45.04592, -88.94245)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 54 ft |
| Location | 7.9M N Jct Cth M |
| NBI structure number | B73000600000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 48 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 Wisconsin department of transportation.
Busiest bridges in Menominee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth Irr (sth 47) over Wolf River | 1986 | 3,000 | Fair |
| Sth Irr (sth 47) over W Br Wolf River | 1971 | 2,200 | Fair |
| Cth M over West Branch of Wolf Rive | 2020 | 602 | Good |
| Irr Bia Rte 146 over West Branch Wolf River | 1981 | 450 | Fair |
| Irr Bia Rte 1024 over Wolf River | 1960 | 350 | Good |
| Irr Bia Rte 9 over Keshena Power Canal | 1996 | 300 | Good |
All bridges nearby: Menominee County, WI bridge conditions · every bridge in Menominee County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.