2800 RD Mile 21 over Big Hill Creek
FairMontgomery County, Kansas · 3.0S 0.5E of Liberty · Structure no. 000000000630760
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected March 2023
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 167 ft
- 3 main spans
- Daily traffic
- 163
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
2800 RD Mile 21 over Big Hill Creek is a prestressed concrete continuous tee beam carrying 2800 RD Mile 21 over Big Hill Creek in Montgomery County, Kansas. It was built in 1980, so it is 45 years old, younger 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 163 vehicles a day, roughly 3% of them trucks, projected to reach 196 by 2039. The structure is 167 ft (51 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 2800 RD Mile 21 over Big Hill Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is 2800 RD Mile 21 over Big Hill 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 March 2023.
How much traffic does 2800 RD Mile 21 over Big Hill Creek carry?
About 163 vehicles per day (2010 count), of which roughly 3% are trucks.
How long is 2800 RD Mile 21 over Big Hill Creek?
The structure is 167 ft (51 m) long with a longest span of 55 ft (16.9 m) and a deck 28 ft wide.
Who owns 2800 RD Mile 21 over Big Hill Creek?
It is owned by the County Highway Agency.