US 52 over Iroquois River
FairIroquois County, Illinois · 1.73 MI E of Ill 49 · Structure no. 038010300000000
- Built
- 1929
- 96 years old, rebuilt 1984
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 410 ft
- 6 main spans
- Daily traffic
- 1,750
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 52 over Iroquois River is a steel continuous stringer/multi-beam or girder carrying US 52 over Iroquois River in Iroquois County, Illinois. It was built in 1929 and reconstructed in 1984, so it is 96 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 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 1,750 vehicles a day, roughly 18% of them trucks, projected to reach 1,768 by 2046. The structure is 410 ft (125 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 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 US 52 over Iroquois River built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1984.
What condition is US 52 over Iroquois River 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 US 52 over Iroquois River carry?
About 1,750 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is US 52 over Iroquois River?
The structure is 410 ft (125 m) long with a longest span of 81 ft (24.7 m) and a deck 35 ft wide.
Who owns US 52 over Iroquois River?
It is owned by the State Highway Agency.