TR 73 over Tirib Long Pt Slough
FairMacon County, Illinois · 3.5 MI NW of Niantic · Structure no. 058334900000000
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 48 ft
- 1 main span
- Daily traffic
- 25
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 73 over Tirib Long Pt Slough is a prestressed concrete box beam or girders - multiple carrying TR 73 over Tirib Long Pt Slough in Macon County, Illinois. It was built in 1999, so it is 26 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 25 vehicles a day, roughly 8% of them trucks, projected to reach 25 by 2046. The structure is 48 ft (14.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 73 over Tirib Long Pt Slough built?
It was built in 1999, making it 26 years old in 2025.
What condition is TR 73 over Tirib 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 January 2024.
How much traffic does TR 73 over Tirib Long Pt Slough carry?
About 25 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is TR 73 over Tirib Long Pt Slough?
The structure is 48 ft (14.5 m) long with a longest span of 44 ft (13.5 m) and a deck 24 ft wide.
Who owns TR 73 over Tirib Long Pt Slough?
It is owned by the Town or Township Highway Agency.