Masonville Dam

EAST MASONVILLE CREEK· Delaware, New York· Earth· 30 ft tall
Low Hazard Recreation Private

Key Takeaway

Masonville Dam is classified as low hazard in New York. Its primary use is recreation.

Physical Details

Dam Height 30 ft (taller than 78.3% in NY)
Dam Length65 ft
Dam TypeEarth
Max Storage230 acre-ft
Normal Storage230 acre-ft
Surface Area21 acres
NID IDNY01475

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: December 18, 1996
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

R SEIBERT

Private

Nearby Dams

Gifford, Kahabka & Rutenber Dam

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Bishop & Chase Marsh Dam & Dike

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Sidney Reservoir #5 Dam

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Significant Hazard 77 ft

Buck Horn Lake Dam

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Scotty's Dam

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High Hazard 18 ft

East Sidney Dam

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High Hazard 130 ft

Cornelius S Smith Dam & Dike

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Significant Hazard 17 ft

Lower Cornelius S Smith Dam

Delaware, NY

Significant Hazard 15 ft

Frequently Asked Questions

What is the hazard classification of Masonville Dam?

Masonville 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 Masonville Dam?

Masonville Dam is owned by R SEIBERT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Masonville Dam?

Masonville 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 Masonville Dam?

Masonville Dam has a dam height of 30 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 Masonville Dam last inspected?

Masonville Dam was last inspected on December 18, 1996. 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.