55th ST over I-294 Tri State Toll
FairCook County, Illinois · 2.1 M W of US 45 · Structure no. 016261000000000
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 264 ft
- 2 main spans
- Daily traffic
- 16,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
55th ST over I-294 Tri State Toll is a prestressed concrete continuous stringer/multi-beam or girder carrying 55th ST over I-294 Tri State Toll in Cook County, Illinois. It was built in 1992, so it is 33 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 16,600 vehicles a day, roughly 4% of them trucks, projected to reach 19,695 by 2046. The structure is 264 ft (80.5 m) long and 67 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 55th ST over I-294 Tri State Toll built?
It was built in 1992, making it 33 years old in 2025.
What condition is 55th ST over I-294 Tri State Toll 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 March 2023.
How much traffic does 55th ST over I-294 Tri State Toll carry?
About 16,600 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is 55th ST over I-294 Tri State Toll?
The structure is 264 ft (80.5 m) long with a longest span of 109 ft (33.2 m) and a deck 67 ft wide.
Who owns 55th ST over I-294 Tri State Toll?
It is owned by the State Highway Agency.