TR 109 a over Trib Long Pt Slough
FairMacon County, Illinois · .5 MI E of Niantic · Structure no. 058334600000000
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 75
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 109 a over Trib Long Pt Slough is a prestressed concrete box beam or girders - multiple carrying TR 109 a over Trib Long Pt Slough in Macon County, Illinois. It was built in 2001, so it is 24 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 5 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 75 vehicles a day, roughly 3% of them trucks, projected to reach 76 by 2046. The structure is 67 ft (20.4 m) long and 25 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 109 a over Trib Long Pt Slough built?
It was built in 2001, making it 24 years old in 2025.
What condition is TR 109 a over Trib Long Pt Slough 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 February 2024.
How much traffic does TR 109 a over Trib Long Pt Slough carry?
About 75 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is TR 109 a over Trib Long Pt Slough?
The structure is 67 ft (20.4 m) long with a longest span of 64 ft (19.4 m) and a deck 25 ft wide.
Who owns TR 109 a over Trib Long Pt Slough?
It is owned by the Town or Township Highway Agency.