Il 4 over Little Silver Ck
GoodSt. Clair County, Illinois · 0.9 MI S of US 50 · Structure no. 082030000000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 240 ft
- 3 main spans
- Daily traffic
- 5,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 4 over Little Silver Ck is a steel continuous stringer/multi-beam or girder carrying Il 4 over Little Silver Ck in St. Clair County, Illinois. It was built in 1997, so it is 28 years old, younger 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.
It carries about 5,150 vehicles a day, roughly 20% of them trucks, projected to reach 5,353 by 2046. The structure is 240 ft (73.3 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 4 over Little Silver Ck built?
It was built in 1997, making it 28 years old in 2025.
What condition is Il 4 over Little Silver Ck 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 October 2023.
How much traffic does Il 4 over Little Silver Ck carry?
About 5,150 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is Il 4 over Little Silver Ck?
The structure is 240 ft (73.3 m) long with a longest span of 92 ft (27.9 m) and a deck 43 ft wide.
Who owns Il 4 over Little Silver Ck?
It is owned by the State Highway Agency.