TR 171 over Trib to Spoon River
GoodKnox County, Illinois · NE-12-T11NR3E · Structure no. 048502900000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Steel
- Length
- 20 ft
- 2 main spans
- Daily traffic
- 25
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 171 over Trib to Spoon River is a steel culvert carrying TR 171 over Trib to Spoon River in Knox County, Illinois. It was built in 1996, so it is 29 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 25 vehicles a day, projected to reach 25 by 2046. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 1.9 mi (3 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 171 over Trib to Spoon River built?
It was built in 1996, making it 29 years old in 2025.
What condition is TR 171 over Trib to Spoon 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 April 2023.
How much traffic does TR 171 over Trib to Spoon River carry?
About 25 vehicles per day (2022 count).
How long is TR 171 over Trib to Spoon River?
The structure is 20 ft (6.2 m) long with a longest span of 9 ft (2.7 m).
Who owns TR 171 over Trib to Spoon River?
It is owned by the Town or Township Highway Agency.