TR-83 over The Slough
GoodLawrence County, Illinois · 2.5 MI NW Petrolia · Structure no. 051323200000000
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected January 2022
- Type
- Channel Beam
- Concrete
- Length
- 78 ft
- 2 main spans
- Daily traffic
- 75
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-83 over The Slough is a concrete channel beam carrying TR-83 over The Slough in Lawrence County, Illinois. It was built in 1980, so it is 45 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 75 vehicles a day, roughly 3% of them trucks, projected to reach 76 by 2046. The structure is 78 ft (23.8 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
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 TR-83 over The Slough built?
It was built in 1980, making it 45 years old in 2025.
What condition is TR-83 over The Slough 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 January 2022.
How much traffic does TR-83 over The Slough carry?
About 75 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is TR-83 over The Slough?
The structure is 78 ft (23.8 m) long with a longest span of 37 ft (11.3 m) and a deck 26 ft wide.
Who owns TR-83 over The Slough?
It is owned by the Town or Township Highway Agency.