I 57 SB & US 51 SB over Cache River Overflow
FairPulaski County, Illinois · 3.2 MI S Union CO · Structure no. 077000800000000
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 300 ft
- 4 main spans
- Daily traffic
- 6,300
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 57 SB & US 51 SB over Cache River Overflow is a steel continuous stringer/multi-beam or girder carrying I 57 SB & US 51 SB over Cache River Overflow in Pulaski County, Illinois. It was built in 1964, so it is 61 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 6,300 vehicles a day, roughly 53% of them trucks, projected to reach 7,828 by 2046. The structure is 300 ft (91.3 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 57 SB & US 51 SB over Cache River Overflow built?
It was built in 1964, making it 61 years old in 2025.
What condition is I 57 SB & US 51 SB over Cache River Overflow in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does I 57 SB & US 51 SB over Cache River Overflow carry?
About 6,300 vehicles per day (2024 count), of which roughly 53% are trucks.
How long is I 57 SB & US 51 SB over Cache River Overflow?
The structure is 300 ft (91.3 m) long with a longest span of 83 ft (25.3 m) and a deck 37 ft wide.
Who owns I 57 SB & US 51 SB over Cache River Overflow?
It is owned by the State Highway Agency.