Cth X over Ih Ush 51-ih 39
Columbia County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cth X over Ih Ush 51-ih 39 in Columbia 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 1966 and reconstructed in 1992, making it 59 years old at the 2025 inventory.
- It carries about 1,130 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 119 of the 182 inventoried bridges in Columbia County rated fair (65.4%); 17 (9.3%) 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 → (43.58443, -89.47011)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 176 ft |
| Location | 0.1M W Jct Cth Cx |
| NBI structure number | B11006700000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Columbia County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 39 Sb-90 Eb-ih over Sth 60 | 2024 | 30,150 | Good |
| Ih 90 Eb-ih 94 EB over Lrd Smokey Hollow Rd | 1961 | 29,350 | Fair |
| Ih 90 Wb-ih 94 WB over Br Rowan Creek | 1961 | 29,350 | Fair |
| Ih 90 Wb-ih 94 WB over Br Rowan Creek | 1961 | 29,350 | Fair |
| Ih 90 Wb-ih 94 WB over Br Rowan Creek | 1961 | 29,350 | Fair |
| Ih 90 Wb-ih 94 WB over Br Rowan Creek | 1961 | 29,350 | Fair |
All bridges nearby: Columbia County, WI bridge conditions · every bridge in Columbia County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.