TR-239 over Harper Creek
FairJefferson County, Illinois · 1 MI NW Mt Vernon · Structure no. 041366300000000
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected December 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 77 ft
- 3 main spans
- Daily traffic
- 100
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-239 over Harper Creek is a prestressed concrete box beam or girders - multiple carrying TR-239 over Harper Creek in Jefferson County, Illinois. It was built in 1989, so it is 36 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 100 vehicles a day, roughly 11% of them trucks, projected to reach 101 by 2046. The structure is 77 ft (23.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR-239 over Harper Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is TR-239 over Harper 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 December 2024.
How much traffic does TR-239 over Harper Creek carry?
About 100 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is TR-239 over Harper Creek?
The structure is 77 ft (23.4 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.
Who owns TR-239 over Harper Creek?
It is owned by the Town or Township Highway Agency.