US81 HWY SB over K18 Highway
FairOttawa County, Kansas · JCT K18/US81 SB · Structure no. 999908100720031
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 242 ft
- 4 main spans
- Daily traffic
- 3,848
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US81 HWY SB over K18 Highway is a concrete continuous box beam or girders - multiple carrying US81 HWY SB over K18 Highway in Ottawa County, Kansas. It was built in 1969, so it is 56 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 3,848 vehicles a day, roughly 24% of them trucks, projected to reach 4,424 by 2044. The structure is 242 ft (73.9 m) long and 42 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US81 HWY SB over K18 Highway built?
It was built in 1969, making it 56 years old in 2025.
What condition is US81 HWY SB over K18 Highway 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 November 2024.
How much traffic does US81 HWY SB over K18 Highway carry?
About 3,848 vehicles per day (2023 count), of which roughly 24% are trucks.
How long is US81 HWY SB over K18 Highway?
The structure is 242 ft (73.9 m) long with a longest span of 67 ft (20.4 m) and a deck 42 ft wide.
Who owns US81 HWY SB over K18 Highway?
It is owned by the State Highway Agency.