Mariaville Lake Dam
Key Takeaway
Mariaville Lake Dam is classified as high hazard in New York. It was completed in 1925 and is 101 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 | 16 ft (taller than 42.9% in NY) |
| Dam Length | 136 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 958 acre-ft |
| Surface Area | 201 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1925 (101 years old) |
| NID ID | NY00169 |
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
MARIAVILLE CIVIC ASSOCIATION;SCHENECTADY COUNTY
Local Government
Nearby Dams
Duanesburg Reservoir Dam
Schenectady, NY
Low Hazard 15 ftCollins Pond Dam
Schenectady, NY
Low Hazard 14 ftDelanson Reservoir Dam
Schenectady, NY
Low Hazard 30 ftDuane Lake Outfall Dam
Schenectady, NY
Low Hazard 10 ftDuane Lake Dam
Schenectady, NY
Low Hazard 20 ftLock E10 Cranesville
Montgomery, NY
Low Hazard 15 ftLock E9 Rotterdam Junction
Schenectady, NY
Low Hazard 15 ftSmeallie Dam
Montgomery, NY
Significant Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Mariaville Lake Dam?
Mariaville Lake Dam 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 Mariaville Lake Dam?
Mariaville Lake Dam is owned by MARIAVILLE CIVIC ASSOCIATION;SCHENECTADY COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mariaville Lake Dam built?
Mariaville Lake Dam was completed in 1925, making it 101 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 Mariaville Lake Dam?
Mariaville Lake Dam 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 Mariaville Lake Dam?
Mariaville Lake Dam has a dam height of 16 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 Mariaville Lake Dam last inspected?
Mariaville Lake Dam was last inspected on March 4, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.