US-166 HWY over Walnut River
GoodCowley County, Kansas · 0.67 MI E of US77/US166 · Structure no. 999916600180891
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 731 ft
- 8 main spans
- Daily traffic
- 4,486
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-166 HWY over Walnut River is a prestressed concrete continuous stringer/multi-beam or girder carrying US-166 HWY over Walnut River in Cowley County, Kansas. It was built in 1996, so it is 29 years old, younger than the Kansas average of 52.8 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 4,486 vehicles a day, roughly 8% of them trucks, projected to reach 4,859 by 2044. The structure is 731 ft (222.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-166 HWY over Walnut River built?
It was built in 1996, making it 29 years old in 2025.
What condition is US-166 HWY over Walnut River 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 August 2023.
How much traffic does US-166 HWY over Walnut River carry?
About 4,486 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is US-166 HWY over Walnut River?
The structure is 731 ft (222.7 m) long with a longest span of 91 ft (27.7 m) and a deck 42 ft wide.
Who owns US-166 HWY over Walnut River?
It is owned by the State Highway Agency.