Chalker
Key Takeaway
Chalker is classified as high hazard in Pennsylvania. It was completed in 1984 and is 42 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 21 ft (taller than 46.9% in PA) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1984 (42 years old) |
| NID ID | PA01208 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
GEORGE W. CHALKER
Private
Nearby Dams
Griffis
Susquehanna, PA
Significant Hazard 17 ftLee Smith Dam
Susquehanna, PA
Low Hazard 18 ftForest Lake
Susquehanna, PA
Significant Hazard 12 ftDuffield Pond
Susquehanna, PA
Significant Hazard 25 ftLake Courtland
Susquehanna, PA
High Hazard 21 ftLake Timberline
Susquehanna, PA
Low Hazard 14 ftBig Elk Lake
Susquehanna, PA
Significant Hazard 12 ftCranberry Lake
Susquehanna, PA
Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Chalker?
Chalker is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Chalker?
Chalker is owned by GEORGE W. CHALKER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Chalker built?
Chalker was completed in 1984, making it 42 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Chalker?
Chalker serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Chalker?
Chalker has a dam height of 21 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Chalker last inspected?
Chalker was last inspected on October 26, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.