TR 580 over Trib Sangamon River
GoodMcLean County, Illinois · 1.5 MI Nnw Saybrook · Structure no. 057361600000000
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 40 ft
- 3 main spans
- Daily traffic
- 50
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 580 over Trib Sangamon River is a concrete continuous culvert carrying TR 580 over Trib Sangamon River in McLean 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 50 vehicles a day, roughly 4% of them trucks, projected to reach 51 by 2046. The structure is 40 ft (12.3 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 580 over Trib Sangamon River built?
It was built in 1980, making it 45 years old in 2025.
What condition is TR 580 over Trib Sangamon 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 2024.
How much traffic does TR 580 over Trib Sangamon River carry?
About 50 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is TR 580 over Trib Sangamon River?
The structure is 40 ft (12.3 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.
Who owns TR 580 over Trib Sangamon River?
It is owned by the Town or Township Highway Agency.