Ill 158 over Loop Creek
FairSt. Clair County, Illinois · 0.3 M N JCT Ill 177 · Structure no. 082013300000000
- Built
- 1923
- 102 years old, rebuilt 1983
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 49 ft
- 1 main span
- Daily traffic
- 5,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 158 over Loop Creek is a prestressed concrete box beam or girders - multiple carrying Ill 158 over Loop Creek in St. Clair County, Illinois. It was built in 1923 and reconstructed in 1983, so it is 102 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 5,350 vehicles a day, roughly 6% of them trucks, projected to reach 5,202 by 2046. The structure is 49 ft (14.9 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 158 over Loop Creek built?
It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1983.
What condition is Ill 158 over Loop 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 September 2024.
How much traffic does Ill 158 over Loop Creek carry?
About 5,350 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Ill 158 over Loop Creek?
The structure is 49 ft (14.9 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.
Who owns Ill 158 over Loop Creek?
It is owned by the State Highway Agency.