Ch 21(FAS 546) over Willow Branch
PoorMacon County, Illinois · 3.9 MI SW Warrensbrg · Structure no. 058300700000000
- Built
- 1926
- 99 years old, rebuilt 1974
- Condition
- Poor
- inspected November 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 250
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 21(FAS 546) over Willow Branch is a prestressed concrete box beam or girders - multiple carrying Ch 21(FAS 546) over Willow Branch in Macon County, Illinois. It was built in 1926 and reconstructed in 1974, so it is 99 years old, older 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 253 by 2046. The structure is 33 ft (10.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 4 Poor | Advanced section loss, deterioration, 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 Ch 21(FAS 546) over Willow Branch built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1974.
What condition is Ch 21(FAS 546) over Willow Branch 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 November 2023.
How much traffic does Ch 21(FAS 546) over Willow Branch carry?
About 250 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Ch 21(FAS 546) over Willow Branch?
The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.9 m) and a deck 26 ft wide.
Who owns Ch 21(FAS 546) over Willow Branch?
It is owned by the County Highway Agency.