US77 HWY over Little Walnut River
FairButler County, Kansas · 4.94 MI N Cowley Coln · Structure no. 999907700080301
- Built
- 1949
- 76 years old, rebuilt 2003
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 387 ft
- 4 main spans
- Daily traffic
- 3,068
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US77 HWY over Little Walnut River is a steel continuous stringer/multi-beam or girder carrying US77 HWY over Little Walnut River in Butler County, Kansas. It was built in 1949 and reconstructed in 2003, so it is 76 years old, older than the Kansas average of 52.8 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 3,068 vehicles a day, roughly 19% of them trucks, projected to reach 3,193 by 2044. The structure is 387 ft (118.1 m) long and 46 ft wide. If it were closed, the detour would be 16.2 mi (26 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US77 HWY over Little Walnut River built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2003.
What condition is US77 HWY over Little Walnut River 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 September 2024.
How much traffic does US77 HWY over Little Walnut River carry?
About 3,068 vehicles per day (2023 count), of which roughly 19% are trucks.
How long is US77 HWY over Little Walnut River?
The structure is 387 ft (118.1 m) long with a longest span of 108 ft (32.9 m) and a deck 46 ft wide.
Who owns US77 HWY over Little Walnut River?
It is owned by the State Highway Agency.