TR 399 a over Little Wabash River
GoodShelby County, Illinois · 4 MI NW of Sigel · Structure no. 087332400000000
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected March 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 161 ft
- 3 main spans
- Daily traffic
- 275
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 399 a over Little Wabash River is a prestressed concrete box beam or girders - multiple carrying TR 399 a over Little Wabash River in Shelby County, Illinois. It was built in 1978, so it is 47 years old, older 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 275 vehicles a day, roughly 9% of them trucks, projected to reach 177 by 2046. The structure is 161 ft (49.1 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 399 a over Little Wabash River built?
It was built in 1978, making it 47 years old in 2025.
What condition is TR 399 a over Little Wabash River 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 March 2022.
How much traffic does TR 399 a over Little Wabash River carry?
About 275 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is TR 399 a over Little Wabash River?
The structure is 161 ft (49.1 m) long with a longest span of 54 ft (16.5 m) and a deck 21 ft wide.
Who owns TR 399 a over Little Wabash River?
It is owned by the Town or Township Highway Agency.