FAS 546(CH 21) over Illini Drain Ditch
FairMacon County, Illinois · 1 MI E Heman · Structure no. 058502300000000
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 36 ft
- 2 main spans
- Daily traffic
- 425
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
FAS 546(CH 21) over Illini Drain Ditch is a concrete culvert carrying FAS 546(CH 21) over Illini Drain Ditch in Macon County, Illinois. It was built in 1980, so it is 45 years old, younger 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 425 vehicles a day, roughly 16% of them trucks, projected to reach 429 by 2046. The structure is 36 ft (11.1 m) long. 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 |
|---|---|---|
| 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 FAS 546(CH 21) over Illini Drain Ditch built?
It was built in 1980, making it 45 years old in 2025.
What condition is FAS 546(CH 21) over Illini Drain Ditch 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 FAS 546(CH 21) over Illini Drain Ditch carry?
About 425 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is FAS 546(CH 21) over Illini Drain Ditch?
The structure is 36 ft (11.1 m) long with a longest span of 17 ft (5.2 m).
Who owns FAS 546(CH 21) over Illini Drain Ditch?
It is owned by the County Highway Agency.