Willow RD over Rock Creek
GoodCarroll County, Illinois · 2 Mi. S. of Lanark · Structure no. 008382000000000
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 56 ft
- 1 main span
- Daily traffic
- 50
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Willow RD over Rock Creek is a prestressed concrete box beam or girders - multiple carrying Willow RD over Rock Creek in Carroll County, Illinois. It was built in 1998, so it is 27 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 56 ft (17.2 m) long and 24 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 | 7 Good | Some minor problems. |
| 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 Willow RD over Rock Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is Willow RD over Rock 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 May 2023.
How much traffic does Willow RD over Rock Creek carry?
About 50 vehicles per day (2021 count).
How long is Willow RD over Rock Creek?
The structure is 56 ft (17.2 m) long with a longest span of 55 ft (16.9 m) and a deck 24 ft wide.
Who owns Willow RD over Rock Creek?
It is owned by the Town or Township Highway Agency.