Ill 161 over Trib to Silver Creek
GoodPosted for loadSt. Clair County, Illinois · 0.1 MI E Ill 4 · Structure no. 082200800000000
- Built
- 1933
- 92 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 34 ft
- 2 main spans
- Daily traffic
- 6,650
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 161 over Trib to Silver Creek is a concrete continuous culvert carrying Ill 161 over Trib to Silver Creek in St. Clair County, Illinois. It was built in 1933, so it is 92 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. Its operating status is: posted for load restriction.
It carries about 6,650 vehicles a day, roughly 6% of them trucks, projected to reach 3,586 by 2046. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 11.2 mi (18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 161 over Trib to Silver Creek built?
It was built in 1933, making it 92 years old in 2025.
What condition is Ill 161 over Trib to Silver 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 2024.
How much traffic does Ill 161 over Trib to Silver Creek carry?
About 6,650 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Ill 161 over Trib to Silver Creek?
The structure is 34 ft (10.5 m) long with a longest span of 16 ft (4.8 m).
Who owns Ill 161 over Trib to Silver Creek?
It is owned by the State Highway Agency.