US77 HWY over Mill Creek
FairRiley County, Kansas · 1.57 MI N Njct US24 · Structure no. 999907700810391
- Built
- 1962
- 63 years old, rebuilt 1987
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 2,442
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US77 HWY over Mill Creek is a concrete continuous tee beam carrying US77 HWY over Mill Creek in Riley County, Kansas. It was built in 1962 and reconstructed in 1987, so it is 63 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 5 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 2,442 vehicles a day, roughly 10% of them trucks, projected to reach 3,162 by 2044. The structure is 156 ft (47.4 m) long and 32 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Mill Creek built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1987.
What condition is US77 HWY over Mill Creek 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 May 2023.
How much traffic does US77 HWY over Mill Creek carry?
About 2,442 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US77 HWY over Mill Creek?
The structure is 156 ft (47.4 m) long with a longest span of 63 ft (19.2 m) and a deck 32 ft wide.
Who owns US77 HWY over Mill Creek?
It is owned by the State Highway Agency.