Spruce Lake Dam

SPRUCE CREEK· Herkimer, New York· Built 1897· Masonry· 18 ft tall
Significant Hazard Water Supply Local Government

Key Takeaway

Spruce Lake Dam is classified as significant hazard in New York. It was completed in 1897 and is 129 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 18 ft (taller than 49.5% in NY)
Dam Length120 ft
Dam TypeMasonry
Max Storage1.1K acre-ft
Normal Storage460 acre-ft
Surface Area100 acres
Drainage Area36 sq mi
Year Completed1897 (129 years old)
NID IDNY00189

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: November 19, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

CITY OF LITTLE FALLS

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Spruce Lake Dam?

Spruce 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 Spruce Lake Dam?

Spruce Lake Dam is owned by CITY OF LITTLE FALLS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Spruce Lake Dam built?

Spruce Lake Dam was completed in 1897, making it 129 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 Spruce Lake Dam?

Spruce Lake Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Spruce Lake Dam?

Spruce Lake Dam has a dam height of 18 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 Spruce Lake Dam last inspected?

Spruce Lake Dam was last inspected on November 19, 2019. 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.