Ill 100 over Walnut CR Overflow
FairScott County, Illinois · 1.5 MI N Il 106 · Structure no. 086200500000000
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 3 main spans
- Daily traffic
- 1,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 100 over Walnut CR Overflow is a concrete culvert carrying Ill 100 over Walnut CR Overflow in Scott County, Illinois. It was built in 1984, so it is 41 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 1,000 vehicles a day, roughly 30% of them trucks, projected to reach 1,010 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 11.8 mi (19 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 | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 100 over Walnut CR Overflow built?
It was built in 1984, making it 41 years old in 2025.
What condition is Ill 100 over Walnut CR Overflow 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 Ill 100 over Walnut CR Overflow carry?
About 1,000 vehicles per day (2021 count), of which roughly 30% are trucks.
How long is Ill 100 over Walnut CR Overflow?
The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).
Who owns Ill 100 over Walnut CR Overflow?
It is owned by the State Highway Agency.