US-400 HWY over Little Walnut River Drg.
GoodButler County, Kansas · 2.86 MI E of US-77 E JCT · Structure no. 999940000080391
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 6,833
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-400 HWY over Little Walnut River Drg. is a concrete culvert carrying US-400 HWY over Little Walnut River Drg. in Butler County, Kansas. It was built in 1970, so it is 55 years old, older 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 6,833 vehicles a day, roughly 19% of them trucks, projected to reach 9,956 by 2044. The structure is 25 ft (7.6 m) long and 101 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-400 HWY over Little Walnut River Drg. built?
It was built in 1970, making it 55 years old in 2025.
What condition is US-400 HWY over Little Walnut River Drg. 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 September 2024.
How much traffic does US-400 HWY over Little Walnut River Drg. carry?
About 6,833 vehicles per day (2023 count), of which roughly 19% are trucks.
How long is US-400 HWY over Little Walnut River Drg.?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 101 ft wide.
Who owns US-400 HWY over Little Walnut River Drg.?
It is owned by the State Highway Agency.