Ill 161 over Ash Creek
GoodSt. Clair County, Illinois · 2.7MI W Ill 4 · Structure no. 082200300000000
- Built
- 1932
- 93 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 5,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 161 over Ash Creek is a concrete continuous culvert carrying Ill 161 over Ash Creek in St. Clair County, Illinois. It was built in 1932, so it is 93 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 5,900 vehicles a day, roughly 8% of them trucks, projected to reach 5,454 by 2046. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 9.9 mi (16 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 161 over Ash Creek built?
It was built in 1932, making it 93 years old in 2025.
What condition is Ill 161 over Ash 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 April 2023.
How much traffic does Ill 161 over Ash Creek carry?
About 5,900 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Ill 161 over Ash Creek?
The structure is 42 ft (12.8 m) long with a longest span of 13 ft (3.9 m).
Who owns Ill 161 over Ash Creek?
It is owned by the State Highway Agency.