Il 47 over Kishwaukee River
GoodMcHenry County, Illinois · 4.7M S of US14 · Structure no. 056031600000000
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 88 ft
- 1 main span
- Daily traffic
- 18,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 47 over Kishwaukee River is a prestressed concrete stringer/multi-beam or girder carrying Il 47 over Kishwaukee River in McHenry County, Illinois. It was built in 2021, so it is 4 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,600 vehicles a day, roughly 6% of them trucks, projected to reach 22,150 by 2040. The structure is 88 ft (26.8 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 47 over Kishwaukee River built?
It was built in 2021, making it 4 years old in 2025.
What condition is Il 47 over Kishwaukee River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.
How much traffic does Il 47 over Kishwaukee River carry?
About 18,600 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Il 47 over Kishwaukee River?
The structure is 88 ft (26.8 m) long with a longest span of 84 ft (25.6 m) and a deck 60 ft wide.
Who owns Il 47 over Kishwaukee River?
It is owned by the State Highway Agency.