K99 HWY over Stillman Creek
GoodLyon County, Kansas · 3.49 MI N I35 · Structure no. 999909900561371
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete
- Length
- 45 ft
- 2 main spans
- Daily traffic
- 1,436
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
K99 HWY over Stillman Creek is a concrete culvert carrying K99 HWY over Stillman Creek in Lyon County, Kansas. It was built in 1985, so it is 40 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 1,436 vehicles a day, roughly 13% of them trucks, projected to reach 1,823 by 2044. The structure is 45 ft (13.7 m) long and 59 ft wide. If it were closed, the detour would be 8.7 mi (14 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 K99 HWY over Stillman Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is K99 HWY over Stillman 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 June 2024.
How much traffic does K99 HWY over Stillman Creek carry?
About 1,436 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is K99 HWY over Stillman Creek?
The structure is 45 ft (13.7 m) long with a longest span of 20 ft (6.1 m) and a deck 59 ft wide.
Who owns K99 HWY over Stillman Creek?
It is owned by the State Highway Agency.