Calhoun ST over Ill Michigan Canal
PoorGrundy County, Illinois · Calhoun ST Ov I&m C · Structure no. 032700500000000
- Built
- 1930
- 95 years old
- Condition
- Poor
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 71 ft
- 1 main span
- Daily traffic
- 825
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Calhoun ST over Ill Michigan Canal is a steel stringer/multi-beam or girder carrying Calhoun ST over Ill Michigan Canal in Grundy County, Illinois. It was built in 1930, so it is 95 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 825 vehicles a day, roughly 53% of them trucks, projected to reach 1,080 by 2046. The structure is 71 ft (21.6 m) long and 26 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Calhoun ST over Ill Michigan Canal built?
It was built in 1930, making it 95 years old in 2025.
What condition is Calhoun ST over Ill Michigan Canal 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 June 2023.
How much traffic does Calhoun ST over Ill Michigan Canal carry?
About 825 vehicles per day (2024 count), of which roughly 53% are trucks.
How long is Calhoun ST over Ill Michigan Canal?
The structure is 71 ft (21.6 m) long with a longest span of 64 ft (19.5 m) and a deck 26 ft wide.
Who owns Calhoun ST over Ill Michigan Canal?
It is owned by the City or Municipal Highway Agency.