Is 55 S over Illmo Br
FairScott County, Missouri · S 5 T 29 N R 14 E · Structure no. 809
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 26,540
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 55 S over Illmo Br is a concrete continuous culvert carrying Is 55 S over Illmo Br in Scott County, Missouri. It was built in 1962, so it is 63 years old, older than the Missouri average of 45.1 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 26,540 vehicles a day, roughly 31% of them trucks, projected to reach 50,426 by 2044. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 55 S over Illmo Br built?
It was built in 1962, making it 63 years old in 2025.
What condition is Is 55 S over Illmo Br 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 January 2025.
How much traffic does Is 55 S over Illmo Br carry?
About 26,540 vehicles per day (2024 count), of which roughly 31% are trucks.
How long is Is 55 S over Illmo Br?
The structure is 22 ft (6.8 m) long with a longest span of 12 ft (3.7 m).
Who owns Is 55 S over Illmo Br?
It is owned by the State Highway Agency.