Mance Pond Dam

TR-TREMPER KILL· Delaware, New York· Built 1991· Earth· 12 ft tall
Low Hazard Recreation Private

Key Takeaway

Mance Pond Dam is classified as low hazard in New York. It was completed in 1991 and is 35 years old. Its primary use is recreation.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length470 ft
Dam TypeEarth
Max Storage79 acre-ft
Normal Storage30 acre-ft
Surface Area9 acres
Drainage Area1 sq mi
Year Completed1991 (35 years old)
NID IDNY14756

Safety Information

Low Hazard

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?

Emergency Action Plan: No
Last Inspection: April 26, 2006
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

DAVID MANCE

Private

Nearby Dams

Lake Delaware Dam

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Low Hazard 9 ft

Jerome J Roach Dam

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Significant Hazard 26 ft

Kazam Pond Dam

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Significant Hazard 35 ft

Geiger Dam

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Low Hazard 10 ft

Tanglewood Lake Dam

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Robert L Bishop Duck Marsh Dam

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Low Hazard 16 ft

Robert L Bishop Dam

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Significant Hazard 34 ft

Waldemar Derke Pond Dam

Delaware, NY

Significant Hazard 11 ft

Frequently Asked Questions

What is the hazard classification of Mance Pond Dam?

Mance Pond 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 Mance Pond Dam?

Mance Pond Dam is owned by DAVID MANCE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mance Pond Dam built?

Mance Pond Dam was completed in 1991, making it 35 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 Mance Pond Dam?

Mance Pond 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 Mance Pond Dam?

Mance Pond Dam has a dam height of 12 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 Mance Pond Dam last inspected?

Mance Pond Dam was last inspected on April 26, 2006. 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.