Ill 161 over Shoal Creek
FairClinton County, Illinois · 1.5M E Germantown · Structure no. 014007000000000
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 262 ft
- 3 main spans
- Daily traffic
- 4,250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 161 over Shoal Creek is a steel continuous stringer/multi-beam or girder carrying Ill 161 over Shoal Creek in Clinton County, Illinois. It was built in 1987, so it is 38 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 4,250 vehicles a day, roughly 8% of them trucks, projected to reach 4,400 by 2046. The structure is 262 ft (79.9 m) long and 35 ft wide. If it were closed, the detour would be 44.1 mi (71 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 161 over Shoal Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Ill 161 over Shoal 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 April 2023.
How much traffic does Ill 161 over Shoal Creek carry?
About 4,250 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Ill 161 over Shoal Creek?
The structure is 262 ft (79.9 m) long with a longest span of 103 ft (31.4 m) and a deck 35 ft wide.
Who owns Ill 161 over Shoal Creek?
It is owned by the State Highway Agency.