Mogisca Lake Dam

TR-DELAWARE RIVER· Sullivan, New York· Built 1976· Earth· 36 ft tall
Significant Hazard Recreation Private

Key Takeaway

Mogisca Lake Dam is classified as significant hazard in New York. It was completed in 1976 and is 50 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 36 ft (taller than 85.3% in NY)
Dam Length1,200 ft
Dam TypeEarth
Max Storage487 acre-ft
Normal Storage319 acre-ft
Surface Area21 acres
Drainage Area1 sq mi
Year Completed1976 (50 years old)
NID IDNY00504

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 13, 2017
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

MORRY'S CAMP INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mogisca Lake Dam?

Mogisca Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Mogisca Lake Dam?

Mogisca Lake Dam is owned by MORRY'S CAMP INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mogisca Lake Dam built?

Mogisca Lake Dam was completed in 1976, making it 50 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 Mogisca Lake Dam?

Mogisca 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 Mogisca Lake Dam?

Mogisca Lake Dam has a dam height of 36 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 Mogisca Lake Dam last inspected?

Mogisca Lake Dam was last inspected on June 13, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.