Sth 171 over Br Knapp Creek
GoodRichland County, Wisconsin · 1.6M E JCT Cth U to S · Structure no. B52005100000000
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 350
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 171 over Br Knapp Creek is a concrete continuous culvert carrying Sth 171 over Br Knapp Creek in Richland County, Wisconsin. It was built in 1975, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 350 vehicles a day, roughly 6% of them trucks, projected to reach 420 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 10.6 mi (17 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 171 over Br Knapp Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is Sth 171 over Br Knapp Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does Sth 171 over Br Knapp Creek carry?
About 350 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Sth 171 over Br Knapp Creek?
The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m).
Who owns Sth 171 over Br Knapp Creek?
It is owned by the State Highway Agency.