Knab Roadtr 209 over West Fork Ck
GoodSt. Clair County, Illinois · 2 MI W Il 159 · Structure no. 082411500000000
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected February 2023
- Type
- Channel Beam
- Concrete
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 950
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Knab Roadtr 209 over West Fork Ck is a concrete channel beam carrying Knab Roadtr 209 over West Fork Ck in St. Clair County, Illinois. It was built in 1984, so it is 41 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 950 vehicles a day, roughly 6% of them trucks, projected to reach 707 by 2046. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Knab Roadtr 209 over West Fork Ck built?
It was built in 1984, making it 41 years old in 2025.
What condition is Knab Roadtr 209 over West Fork Ck in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.
How much traffic does Knab Roadtr 209 over West Fork Ck carry?
About 950 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Knab Roadtr 209 over West Fork Ck?
The structure is 90 ft (27.4 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.
Who owns Knab Roadtr 209 over West Fork Ck?
It is owned by the Town or Township Highway Agency.