Sth 101 over Pine River
Florence County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth 101 over Pine River in Florence County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1939 and reconstructed in 1980, making it 86 years old at the 2025 inventory.
- It carries about 750 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 10 of the 20 inventoried bridges in Florence County rated fair (50.0%); 1 (5.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for another load-capacity restriction (speed, number of vehicles on the bridge, etc.) (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 6 to 5, substructure 6 to 7.
- Its most recent inspection on record is dated September 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- 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 → (45.85335, -88.35096)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 5 | Fair condition |
| Substructure | 6 | 7 | Good condition |
Bridge details
| Structure | Steel through truss |
| Length | about 94 ft |
| Location | 9.6M N Jct Cth C |
| NBI structure number | B19050900000000 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for another load-capacity restriction (speed, number of vehicles on the bridge, etc.) |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Florence County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ush 2-ush 141 over Menominee River | 1980 | 6,500 | Fair |
| Ush 2-ush 141 over Brule River | 1941 | 3,800 | Fair |
| Cth N over Menominee River | 1973 | 3,500 | Poor |
| Cth N over Little Popple River | 1997 | 1,504 | Fair |
| Sth 139 over Brule River | 1989 | 1,500 | Fair |
| Cth N over Pine River | 1998 | 1,302 | Good |
All bridges nearby: Florence County, WI bridge conditions · every bridge in Florence County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.