I-57 over Copper Slough
GoodChampaign County, Illinois · .4 MI N FAI 72 Int · Structure no. 010021500000000
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 3 main spans
- Daily traffic
- 34,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-57 over Copper Slough is a concrete continuous culvert carrying I-57 over Copper Slough in Champaign County, Illinois. It was built in 1965, so it is 60 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.
It carries about 34,400 vehicles a day, roughly 36% of them trucks, projected to reach 41,410 by 2046. The structure is 22 ft (6.8 m) long.
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 I-57 over Copper Slough built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-57 over Copper Slough 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 June 2024.
How much traffic does I-57 over Copper Slough carry?
About 34,400 vehicles per day (2023 count), of which roughly 36% are trucks.
How long is I-57 over Copper Slough?
The structure is 22 ft (6.8 m) long with a longest span of 8 ft (2.4 m).
Who owns I-57 over Copper Slough?
It is owned by the State Highway Agency.