TR 85 over Birch Creek
FairGreene County, Illinois · 7.0 MI NE White Hall · Structure no. 031500800000000
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 89 ft
- 3 main spans
- Daily traffic
- 25
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 85 over Birch Creek is a prestressed concrete box beam or girders - multiple carrying TR 85 over Birch Creek in Greene County, Illinois. It was built in 1970, so it is 55 years old, older 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 25 vehicles a day, roughly 20% of them trucks, projected to reach 25 by 2046. The structure is 89 ft (27.1 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 85 over Birch Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is TR 85 over Birch 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 January 2023.
How much traffic does TR 85 over Birch Creek carry?
About 25 vehicles per day (2017 count), of which roughly 20% are trucks.
How long is TR 85 over Birch Creek?
The structure is 89 ft (27.1 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.
Who owns TR 85 over Birch Creek?
It is owned by the Town or Township Highway Agency.