FAS 546(CH 21) over Trib N Fork Creek
PoorMacon County, Illinois · 6.8 MI W of Maroa · Structure no. 058329300000000
- Built
- 1983
- 42 years old
- Condition
- Poor
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 300
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
FAS 546(CH 21) over Trib N Fork Creek is a prestressed concrete box beam or girders - multiple carrying FAS 546(CH 21) over Trib N Fork Creek in Macon County, Illinois. It was built in 1983, so it is 42 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 300 vehicles a day, roughly 11% of them trucks, projected to reach 303 by 2046. The structure is 40 ft (12.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 FAS 546(CH 21) over Trib N Fork Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is FAS 546(CH 21) over Trib N Fork Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.
How much traffic does FAS 546(CH 21) over Trib N Fork Creek carry?
About 300 vehicles per day (2020 count), of which roughly 11% are trucks.
How long is FAS 546(CH 21) over Trib N Fork Creek?
The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.5 m) and a deck 28 ft wide.
Who owns FAS 546(CH 21) over Trib N Fork Creek?
It is owned by the County Highway Agency.