Il 99 over Missouri Creek
FairBrown County, Illinois · .25 S Schuyler Line · Structure no. 005200000000000
- Built
- 1931
- 94 years old, rebuilt 1987
- Condition
- Fair
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 99 over Missouri Creek is a concrete culvert carrying Il 99 over Missouri Creek in Brown County, Illinois. It was built in 1931 and reconstructed in 1987, so it is 94 years old, older than the Illinois average of 45.3 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 500 vehicles a day, roughly 14% of them trucks, projected to reach 455 by 2046. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 14.9 mi (24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 99 over Missouri Creek built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1987.
What condition is Il 99 over Missouri 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 January 2024.
How much traffic does Il 99 over Missouri Creek carry?
About 500 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is Il 99 over Missouri Creek?
The structure is 27 ft (8.3 m) long with a longest span of 12 ft (3.7 m).
Who owns Il 99 over Missouri Creek?
It is owned by the State Highway Agency.