Illiopolis TR560 over Willow Branch
GoodSangamon County, Illinois · 1.0 S Illiopolis · Structure no. 084361700000000
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 101 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Illiopolis TR560 over Willow Branch is a prestressed concrete box beam or girders - multiple carrying Illiopolis TR560 over Willow Branch in Sangamon County, Illinois. It was built in 1982, so it is 43 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 101 ft (30.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Illiopolis TR560 over Willow Branch built?
It was built in 1982, making it 43 years old in 2025.
What condition is Illiopolis TR560 over Willow Branch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does Illiopolis TR560 over Willow Branch carry?
About 50 vehicles per day (2022 count).
How long is Illiopolis TR560 over Willow Branch?
The structure is 101 ft (30.9 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.
Who owns Illiopolis TR560 over Willow Branch?
It is owned by the Town or Township Highway Agency.