I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts
FairPosted for loadSt. Clair County, Illinois · Pier A1 to Abut A46 · Structure no. 082014100000000
- Built
- 1968
- 57 years old, rebuilt 2008
- Condition
- Fair
- inspected February 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 4,531 ft
- 46 main spans
- Daily traffic
- 3,600
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts is a steel continuous girder and floorbeam system carrying I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts in St. Clair County, Illinois. It was built in 1968 and reconstructed in 2008, so it is 57 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. Its operating status is: posted for load restriction.
It carries about 3,600 vehicles a day, roughly 6% of them trucks, projected to reach 3,636 by 2046. The structure is 4,531 ft (1,381 m) long and 36 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2008.
What condition is I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts 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 February 2023.
How much traffic does I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts carry?
About 3,600 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts?
The structure is 4,531 ft (1,381 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.
Who owns I-55/64 WB Cd "a" over UPRR O2 B C H 4 Esl Sts?
It is owned by the State Highway Agency.