Ill 161 over Lost Creek
FairClinton County, Illinois · 1.7 E Ill 127 · Structure no. 014002400000000
- Built
- 1937
- 88 years old, rebuilt 1987
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 309 ft
- 5 main spans
- Daily traffic
- 4,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 161 over Lost Creek is a steel continuous stringer/multi-beam or girder carrying Ill 161 over Lost Creek in Clinton County, Illinois. It was built in 1937 and reconstructed in 1987, so it is 88 years old, older 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 4,100 vehicles a day, roughly 11% of them trucks, projected to reach 4,235 by 2046. The structure is 309 ft (94.1 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 161 over Lost Creek built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1987.
What condition is Ill 161 over Lost 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 Lost Creek carry?
About 4,100 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Ill 161 over Lost Creek?
The structure is 309 ft (94.1 m) long with a longest span of 65 ft (19.8 m) and a deck 35 ft wide.
Who owns Ill 161 over Lost Creek?
It is owned by the State Highway Agency.