Grange RD over Coon Creek
FairMcHenry County, Illinois · 0.1 MI W of Burma RD · Structure no. 056313100000000
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 150
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Grange RD over Coon Creek is a prestressed concrete box beam or girders - multiple carrying Grange RD over Coon Creek in McHenry 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 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 150 vehicles a day, roughly 16% of them trucks, projected to reach 180 by 2046. The structure is 128 ft (39 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grange RD over Coon Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is Grange RD over Coon Creek 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 October 2024.
How much traffic does Grange RD over Coon Creek carry?
About 150 vehicles per day (2021 count), of which roughly 16% are trucks.
How long is Grange RD over Coon Creek?
The structure is 128 ft (39 m) long with a longest span of 41 ft (12.5 m) and a deck 27 ft wide.
Who owns Grange RD over Coon Creek?
It is owned by the Town or Township Highway Agency.