US 51 (fap 322) over East Fork Kaskaskia
FairMarion County, Illinois · 10 MI S Fayette CO L · Structure no. 061000500000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 144 ft
- 3 main spans
- Daily traffic
- 2,750
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 51 (fap 322) over East Fork Kaskaskia is a steel continuous stringer/multi-beam or girder carrying US 51 (fap 322) over East Fork Kaskaskia in Marion County, Illinois. It was built in 1958, so it is 67 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 2,750 vehicles a day, roughly 18% of them trucks, projected to reach 2,828 by 2046. The structure is 144 ft (43.9 m) long and 36 ft wide. If it were closed, the detour would be 51 mi (82 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 US 51 (fap 322) over East Fork Kaskaskia built?
It was built in 1958, making it 67 years old in 2025.
What condition is US 51 (fap 322) over East Fork Kaskaskia 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 51 (fap 322) over East Fork Kaskaskia carry?
About 2,750 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is US 51 (fap 322) over East Fork Kaskaskia?
The structure is 144 ft (43.9 m) long with a longest span of 52 ft (15.7 m) and a deck 36 ft wide.
Who owns US 51 (fap 322) over East Fork Kaskaskia?
It is owned by the State Highway Agency.