Cass Ave over I- 55
PoorDuPage County, Illinois · 1.7 M W Il 83 · Structure no. 022007200000000
- Built
- 1960
- 65 years old, rebuilt 2000
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 272 ft
- 4 main spans
- Daily traffic
- 14,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Cass Ave over I- 55 is a steel continuous stringer/multi-beam or girder carrying Cass Ave over I- 55 in DuPage County, Illinois. It was built in 1960 and reconstructed in 2000, so it is 65 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 14,000 vehicles a day, roughly 7% of them trucks, projected to reach 12,625 by 2046. The structure is 272 ft (82.9 m) long and 112 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 Cass Ave over I- 55 built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2000.
What condition is Cass Ave over I- 55 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Cass Ave over I- 55 carry?
About 14,000 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is Cass Ave over I- 55?
The structure is 272 ft (82.9 m) long with a longest span of 88 ft (26.8 m) and a deck 112 ft wide.
Who owns Cass Ave over I- 55?
It is owned by the State Highway Agency.