TR 12 over Rock CR
GoodMcLean County, Illinois · 5.2 MI W Carlock · Structure no. 057401800000000
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 95 ft
- 3 main spans
- Daily traffic
- 25
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 12 over Rock CR is a concrete continuous slab carrying TR 12 over Rock CR in McLean County, Illinois. It was built in 1976, so it is 49 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 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, roughly 8% of them trucks, projected to reach 25 by 2046. The structure is 95 ft (29 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 12 over Rock CR built?
It was built in 1976, making it 49 years old in 2025.
What condition is TR 12 over Rock 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 July 2024.
How much traffic does TR 12 over Rock CR carry?
About 25 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is TR 12 over Rock CR?
The structure is 95 ft (29 m) long with a longest span of 35 ft (10.8 m) and a deck 26 ft wide.
Who owns TR 12 over Rock CR?
It is owned by the Town or Township Highway Agency.