Corneils Rd/Ms 320 over Rob Roy Creek
FairKendall County, Illinois · In Yorkville · Structure no. 047315500000000
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 72 ft
- 1 main span
- Daily traffic
- 700
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Corneils Rd/Ms 320 over Rob Roy Creek is a prestressed concrete box beam or girders - multiple carrying Corneils Rd/Ms 320 over Rob Roy Creek in Kendall 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 5 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 700 vehicles a day, roughly 4% of them trucks, projected to reach 1,397 by 2046. The structure is 72 ft (21.8 m) long and 30 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 Corneils Rd/Ms 320 over Rob Roy Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is Corneils Rd/Ms 320 over Rob Roy 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 August 2024.
How much traffic does Corneils Rd/Ms 320 over Rob Roy Creek carry?
About 700 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Corneils Rd/Ms 320 over Rob Roy Creek?
The structure is 72 ft (21.8 m) long with a longest span of 69 ft (21 m) and a deck 30 ft wide.
Who owns Corneils Rd/Ms 320 over Rob Roy Creek?
It is owned by the City or Municipal Highway Agency.