IH 41 over Neenah Slough
FairWinnebago County, Wisconsin · 5.1M N JCT Ush 45 to N · Structure no. B70005800000000
- Built
- 1975
- 50 years old, rebuilt 2010
- Condition
- Fair
- inspected June 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 43 ft
- 3 main spans
- Daily traffic
- 65,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IH 41 over Neenah Slough is a concrete continuous culvert carrying IH 41 over Neenah Slough in Winnebago County, Wisconsin. It was built in 1975 and reconstructed in 2010, so it is 50 years old, older than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 65,700 vehicles a day, roughly 11% of them trucks, projected to reach 102,020 by 2042. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 11.8 mi (19 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 41 over Neenah Slough built?
It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2010.
What condition is IH 41 over Neenah Slough in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does IH 41 over Neenah Slough carry?
About 65,700 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is IH 41 over Neenah Slough?
The structure is 43 ft (13.1 m) long with a longest span of 13 ft (4 m).
Who owns IH 41 over Neenah Slough?
It is owned by the State Highway Agency.