Ill 54 over I 57
PoorIroquois County, Illinois · Onarga Interchange · Structure no. 038004800000000
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 222 ft
- 4 main spans
- Daily traffic
- 1,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 54 over I 57 is a steel continuous stringer/multi-beam or girder carrying Ill 54 over I 57 in Iroquois County, Illinois. It was built in 1967, so it is 58 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 1,150 vehicles a day, roughly 18% of them trucks, projected to reach 1,263 by 2046. The structure is 222 ft (67.7 m) long and 58 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Ill 54 over I 57 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Ill 54 over I 57 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 January 2024.
How much traffic does Ill 54 over I 57 carry?
About 1,150 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is Ill 54 over I 57?
The structure is 222 ft (67.7 m) long with a longest span of 67 ft (20.4 m) and a deck 58 ft wide.
Who owns Ill 54 over I 57?
It is owned by the State Highway Agency.