Il 4 over Silver Creek
GoodMadison County, Illinois · 1.9MI S of Il 140 · Structure no. 060033400000000
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 328 ft
- 5 main spans
- Daily traffic
- 4,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 4 over Silver Creek is a steel continuous stringer/multi-beam or girder carrying Il 4 over Silver Creek in Madison County, Illinois. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 4,350 vehicles a day, roughly 13% of them trucks, projected to reach 3,906 by 2046. The structure is 328 ft (100 m) long and 39 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 4 over Silver Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is Il 4 over 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 October 2023.
How much traffic does Il 4 over Silver Creek carry?
About 4,350 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is Il 4 over Silver Creek?
The structure is 328 ft (100 m) long with a longest span of 74 ft (22.6 m) and a deck 39 ft wide.
Who owns Il 4 over Silver Creek?
It is owned by the State Highway Agency.