Il 56 over Salt Creek
FairDuPage County, Illinois · .3 M NE of Il 38 · Structure no. 022008600000000
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 117 ft
- 2 main spans
- Daily traffic
- 21,100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 56 over Salt Creek is a prestressed concrete stringer/multi-beam or girder carrying Il 56 over Salt Creek in DuPage 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 21,100 vehicles a day, roughly 4% of them trucks, projected to reach 14,342 by 2046. The structure is 117 ft (35.7 m) long and 70 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Il 56 over Salt Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is Il 56 over Salt Creek 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 June 2024.
How much traffic does Il 56 over Salt Creek carry?
About 21,100 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Il 56 over Salt Creek?
The structure is 117 ft (35.7 m) long with a longest span of 55 ft (16.8 m) and a deck 70 ft wide.
Who owns Il 56 over Salt Creek?
It is owned by the State Highway Agency.