TR 309 over Trib to Mud CR
GoodIroquois County, Illinois · 2 7I. SE Milford · Structure no. 038473000000000
- Built
- 1960
- 65 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 82 ft
- 3 main spans
- Daily traffic
- 75
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 309 over Trib to Mud CR is a concrete slab carrying TR 309 over Trib to Mud CR in Iroquois County, Illinois. It was built in 1960, so it is 65 years old, older 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 75 vehicles a day, projected to reach 76 by 2046. The structure is 82 ft (25 m) long and 26 ft wide. 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 |
|---|---|---|
| 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 309 over Trib to Mud CR built?
It was built in 1960, making it 65 years old in 2025.
What condition is TR 309 over Trib to Mud CR 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 June 2024.
How much traffic does TR 309 over Trib to Mud CR carry?
About 75 vehicles per day (2022 count).
How long is TR 309 over Trib to Mud CR?
The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.
Who owns TR 309 over Trib to Mud CR?
It is owned by the Town or Township Highway Agency.