North Union Road over Kishwaukee River
PoorMcHenry County, Illinois · 0.3 MI W of Il 47 · Structure no. 056309400000000
- Built
- 1959
- 66 years old
- Condition
- Poor
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 54 ft
- 2 main spans
- Daily traffic
- 875
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
North Union Road over Kishwaukee River is a prestressed concrete box beam or girders - multiple carrying North Union Road over Kishwaukee River in McHenry County, Illinois. It was built in 1959, so it is 66 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 875 vehicles a day, roughly 7% of them trucks, projected to reach 1,050 by 2046. The structure is 54 ft (16.5 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 North Union Road over Kishwaukee River built?
It was built in 1959, making it 66 years old in 2025.
What condition is North Union Road over Kishwaukee River 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 October 2024.
How much traffic does North Union Road over Kishwaukee River carry?
About 875 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is North Union Road over Kishwaukee River?
The structure is 54 ft (16.5 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.
Who owns North Union Road over Kishwaukee River?
It is owned by the Town or Township Highway Agency.