Ill 177 over Queens Lake
PoorPosted for loadClinton County, Illinois · W Cl New Memphis · Structure no. 014000300000000
- Built
- 1922
- 103 years old, rebuilt 1997
- Condition
- Poor
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 71 ft
- 3 main spans
- Daily traffic
- 2,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 177 over Queens Lake is a concrete continuous slab carrying Ill 177 over Queens Lake in Clinton County, Illinois. It was built in 1922 and reconstructed in 1997, so it is 103 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 2,000 vehicles a day, roughly 12% of them trucks, projected to reach 2,255 by 2046. The structure is 71 ft (21.6 m) long and 34 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 177 over Queens Lake built?
It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1997.
What condition is Ill 177 over Queens Lake in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Ill 177 over Queens Lake carry?
About 2,000 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is Ill 177 over Queens Lake?
The structure is 71 ft (21.6 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.
Who owns Ill 177 over Queens Lake?
It is owned by the State Highway Agency.