Ch 37 over Iroquois R
PoorKankakee County, Illinois · 5.3 MI W St. Anne · Structure no. 046334300000000
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 511 ft
- 4 main spans
- Daily traffic
- 1,150
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 37 over Iroquois R is a steel continuous stringer/multi-beam or girder carrying Ch 37 over Iroquois R in Kankakee County, Illinois. It was built in 1979, so it is 46 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 3 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 11% of them trucks, projected to reach 1,173 by 2046. The structure is 511 ft (155.8 m) long and 36 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 37 over Iroquois R built?
It was built in 1979, making it 46 years old in 2025.
What condition is Ch 37 over Iroquois R 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 July 2024.
How much traffic does Ch 37 over Iroquois R carry?
About 1,150 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is Ch 37 over Iroquois R?
The structure is 511 ft (155.8 m) long with a longest span of 142 ft (43.3 m) and a deck 36 ft wide.
Who owns Ch 37 over Iroquois R?
It is owned by the County Highway Agency.