Alpine Road over Willow Creek
FairWinnebago County, Illinois · 0.8 Mi. S Il 173 · Structure no. 101513400000000
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 53 ft
- 4 main spans
- Daily traffic
- 16,100
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Alpine Road over Willow Creek is a concrete culvert carrying Alpine Road over Willow Creek in Winnebago County, Illinois. It was built in 1989, so it is 36 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 6 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 16,100 vehicles a day, roughly 4% of them trucks, projected to reach 10,252 by 2046. The structure is 53 ft (16.1 m) long and 84 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alpine Road over Willow Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Alpine Road 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 September 2024.
How much traffic does Alpine Road over Willow Creek carry?
About 16,100 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Alpine Road over Willow Creek?
The structure is 53 ft (16.1 m) long with a longest span of 15 ft (4.6 m) and a deck 84 ft wide.
Who owns Alpine Road over Willow Creek?
It is owned by the City or Municipal Highway Agency.