TR 320 over Walnut Creek
GoodKnox County, Illinois · E1/2-2-T12NR4E · Structure no. 048330100000000
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 122 ft
- 3 main spans
- Daily traffic
- 25
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 320 over Walnut Creek is a prestressed concrete box beam or girders - multiple carrying TR 320 over Walnut Creek in Knox County, Illinois. It was built in 1986, so it is 39 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 8 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 122 ft (37.2 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 320 over Walnut Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is TR 320 over Walnut Creek 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 February 2023.
How much traffic does TR 320 over Walnut Creek carry?
About 25 vehicles per day (2022 count).
How long is TR 320 over Walnut Creek?
The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.
Who owns TR 320 over Walnut Creek?
It is owned by the Town or Township Highway Agency.