Maple Lake Dam

MUSKRAT BROOK· Herkimer, New York· Built 1905· Earth· 12 ft tall
Low Hazard Recreation Private

Key Takeaway

Maple Lake Dam is classified as low hazard in New York. It was completed in 1905 and is 121 years old. Its primary use is recreation.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length250 ft
Dam TypeEarth
Max Storage77 acre-ft
Normal Storage77 acre-ft
Surface Area19 acres
Year Completed1905 (121 years old)
NID IDNY01344

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: November 29, 1988
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

George Mandes

Private

Nearby Dams

Evans Pond Dam

Oneida, NY

Low Hazard 10 ft

Snow Bird Lake Dam

Oneida, NY

Low Hazard 18 ft

Finches Pond Lower Dam

Herkimer, NY

Significant Hazard 20 ft

Finches Pond Upper Dam

Herkimer, NY

Significant Hazard 18 ft

Hinckley

Herkimer, NY

High Hazard 83 ft

Prospect

Herkimer, NY

High Hazard 52 ft

Kayuta

Oneida, NY

High Hazard 19 ft

Forestport

Oneida, NY

High Hazard 27 ft

Frequently Asked Questions

What is the hazard classification of Maple Lake Dam?

Maple 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 Maple Lake Dam?

Maple Lake Dam is owned by George Mandes (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Maple Lake Dam built?

Maple Lake Dam was completed in 1905, making it 121 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 Maple Lake Dam?

Maple 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 Maple Lake Dam?

Maple Lake 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 Maple Lake Dam last inspected?

Maple Lake Dam was last inspected on November 29, 1988. 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.