Rocky Hollow RD over Willow Creek
FairOgle County, Illinois · 5.5 MI SE of Oregon · Structure no. 071328700000000
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 100
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Rocky Hollow RD over Willow Creek is a prestressed concrete box beam or girders - multiple carrying Rocky Hollow RD over Willow Creek in Ogle 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 104 by 2046. The structure is 60 ft (18.3 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rocky Hollow RD over Willow Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is Rocky Hollow RD over Willow Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Rocky Hollow RD over Willow Creek carry?
About 100 vehicles per day (2017 count), of which roughly 3% are trucks.
How long is Rocky Hollow RD over Willow Creek?
The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 24 ft wide.
Who owns Rocky Hollow RD over Willow Creek?
It is owned by the Town or Township Highway Agency.