Peconic Lake Dam
Key Takeaway
Peconic Lake Dam is classified as low hazard in New York. It was completed in 1915 and is 111 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 29.9% in NY) |
| Dam Length | 636 ft |
| Dam Type | Earth |
| Max Storage | 83 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 25 acres |
| Year Completed | 1915 (111 years old) |
| NID ID | NY01513 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
SUFFOLK COUNTY DEPARTMENT OF PUBLIC WORKS;TOWN OF BROOKHAVEN
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Peconic Lake Dam?
Peconic Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Peconic Lake Dam?
Peconic Lake Dam is owned by SUFFOLK COUNTY DEPARTMENT OF PUBLIC WORKS;TOWN OF BROOKHAVEN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Peconic Lake Dam built?
Peconic Lake Dam was completed in 1915, making it 111 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 Peconic Lake Dam?
Peconic 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 Peconic Lake Dam?
Peconic Lake Dam has a dam height of 13 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 Peconic Lake Dam last inspected?
Peconic Lake Dam was last inspected on May 1, 2007. Inspection dates indicate when a formal review occurred, not the results of that inspection.