Ush 18/STH 35/STH over Drainage Channel
Crawford County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ush 18/STH 35/STH over Drainage Channel in Crawford County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 6,600 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 86 of the 211 inventoried bridges in Crawford County rated fair (40.8%); 11 (5.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: culvert 5 to 6.
- Its most recent inspection on record is dated November 2024, on a 48-month routine inspection cycle.
- 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 → (43.01411, -91.09836)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 23 ft |
| Location | at Old 18 Road Int |
| NBI structure number | B12018700000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| 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 Crawford County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ush 18-sth 60 over Lrd Ia Route 76 | 1974 | 8,800 | Fair |
| Ush 18-sth 60 over Mississippi River 02 | 1974 | 8,800 | Fair |
| Ush 18/STH 35/STH over Vineyard Valley Coulee D | 2016 | 6,600 | Good |
| Ush 18/STH 35/STH over Drainage Channel | 2016 | 6,600 | Good |
| Ush 18 Eb-sth 60 E over Marais De St Friol | 1974 | 5,400 | Fair |
| Ush 61 over Wisconsin River 02 | 2000 | 5,400 | Good |
All bridges nearby: Crawford County, WI bridge conditions · every bridge in Crawford County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.