Allen RD over Coon Ck
FairKane County, Illinois · NE SEC19 T42N R6E · Structure no. 045314900000000
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 77 ft
- 3 main spans
- Daily traffic
- 325
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Allen RD over Coon Ck is a prestressed concrete box beam or girders - multiple carrying Allen RD over Coon Ck in Kane County, Illinois. It was built in 1999, so it is 26 years old, younger 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 325 vehicles a day, roughly 9% of them trucks, projected to reach 397 by 2046. The structure is 77 ft (23.5 m) long and 32 ft wide.
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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Allen RD over Coon Ck built?
It was built in 1999, making it 26 years old in 2025.
What condition is Allen RD over Coon Ck 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 January 2024.
How much traffic does Allen RD over Coon Ck carry?
About 325 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is Allen RD over Coon Ck?
The structure is 77 ft (23.5 m) long with a longest span of 24 ft (7.2 m) and a deck 32 ft wide.
Who owns Allen RD over Coon Ck?
It is owned by the County Highway Agency.