I355 NB & SB over Desplaines River Val
FairCook County, Illinois · .5M S of Bluff RD · Structure no. 016262900000000
- Built
- 2007
- 18 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 6,593 ft
- 35 main spans
- Daily traffic
- 83,900
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
I355 NB & SB over Desplaines River Val is a prestressed concrete continuous stringer/multi-beam or girder carrying I355 NB & SB over Desplaines River Val in Cook 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 fair condition with a lowest component rating of 6 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 83,900 vehicles a day, roughly 16% of them trucks, projected to reach 66,559 by 2046. The structure is 6,593 ft (2,009.5 m) long and 64 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I355 NB & SB over Desplaines River Val built?
It was built in 2007, making it 18 years old in 2025.
What condition is I355 NB & SB over Desplaines River Val 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 I355 NB & SB over Desplaines River Val carry?
About 83,900 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I355 NB & SB over Desplaines River Val?
The structure is 6,593 ft (2,009.5 m) long with a longest span of 271 ft (82.5 m) and a deck 64 ft wide.
Who owns I355 NB & SB over Desplaines River Val?
It is owned by the State Toll Authority.