Cth C over Montreal River
Iron County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cth C over Montreal River in Iron County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 144 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 23 of the 48 inventoried bridges in Iron County rated fair (47.9%); 2 (4.2%) are rated poor.
- 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 → (46.38731, -90.14158)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 56 ft |
| Location | 1.2M E Jct Ush 51 |
| NBI structure number | B26001200000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Iron County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Lrd Poplar St over Montreal River | 2010 | 5,593 | Fair |
| Sth 77-silver St over Montreal River | 1965 | 4,900 | Fair |
| Ush 2 over Soo Line/vaughn Creek | 1976 | 4,300 | Good |
| Ush 2 over W Br Montreal River | 1974 | 3,500 | Good |
| Ush 2 WB over Montreal River | 1961 | 3,000 | Fair |
| Ush 2 EB over Montreal River | 1961 | 3,000 | Fair |
All bridges nearby: Iron County, WI bridge conditions · every bridge in Iron County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.