Il 143 over Silver Creek
GoodMadison County, Illinois · 3 Miles West of Il 4 · Structure no. 060034000000000
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 388 ft
- 5 main spans
- Daily traffic
- 4,650
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 143 over Silver Creek is a steel continuous stringer/multi-beam or girder carrying Il 143 over Silver Creek in Madison County, Illinois. It was built in 2007, so it is 18 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 4,650 vehicles a day, roughly 5% of them trucks, projected to reach 5,350 by 2046. The structure is 388 ft (118.3 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 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 143 over Silver Creek built?
It was built in 2007, making it 18 years old in 2025.
What condition is Il 143 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 May 2024.
How much traffic does Il 143 over Silver Creek carry?
About 4,650 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Il 143 over Silver Creek?
The structure is 388 ft (118.3 m) long with a longest span of 82 ft (25 m) and a deck 39 ft wide.
Who owns Il 143 over Silver Creek?
It is owned by the State Highway Agency.