US 20 WB over S Appleton RD
FairBoone County, Illinois · SW Edge Belvidere · Structure no. 004000600000000
- Built
- 1966
- 59 years old, rebuilt 2000
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 282 ft
- 6 main spans
- Daily traffic
- 13,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 WB over S Appleton RD is a steel continuous stringer/multi-beam or girder carrying US 20 WB over S Appleton RD in Boone County, Illinois. It was built in 1966 and reconstructed in 2000, so it is 59 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 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 13,700 vehicles a day, roughly 12% of them trucks, projected to reach 6,760 by 2046. The structure is 282 ft (86 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 WB over S Appleton RD built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2000.
What condition is US 20 WB over S Appleton RD 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 2025.
How much traffic does US 20 WB over S Appleton RD carry?
About 13,700 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 20 WB over S Appleton RD?
The structure is 282 ft (86 m) long with a longest span of 54 ft (16.5 m) and a deck 50 ft wide.
Who owns US 20 WB over S Appleton RD?
It is owned by the State Highway Agency.