TR 186A over Duck Creek
GoodMercer County, Illinois · SE-26-T13NR3W · Structure no. 066431100000000
- Built
- 1958
- 67 years old, rebuilt 2004
- Condition
- Good
- inspected March 2024
- Type
- Channel Beam
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 10
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 186A over Duck Creek is a concrete channel beam carrying TR 186A over Duck Creek in Mercer County, Illinois. It was built in 1958 and reconstructed in 2004, so it is 67 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 26 ft (7.9 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 186A over Duck Creek built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2004.
What condition is TR 186A over Duck 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 March 2024.
How much traffic does TR 186A over Duck Creek carry?
About 10 vehicles per day (2024 count).
How long is TR 186A over Duck Creek?
The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7.1 m) and a deck 26 ft wide.
Who owns TR 186A over Duck Creek?
It is owned by the Town or Township Highway Agency.