Rock City Saw Mill Dam

TR-LAKES KILL· Dutchess, New York· Built 1900· Masonry· 12 ft tall
Significant Hazard Recreation Private

Key Takeaway

Rock City Saw Mill Dam is classified as significant hazard in New York. It was completed in 1900 and is 126 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length86 ft
Dam TypeMasonry
Max Storage11 acre-ft
Normal Storage4 acre-ft
Surface Area1 acres
Drainage Area6 sq mi
Max Discharge135 cfs
Year Completed1900 (126 years old)
NID IDNY13439

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: No
Last Inspection: June 3, 2020
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

EDWARD KOVACH

Private

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Frequently Asked Questions

What is the hazard classification of Rock City Saw Mill Dam?

Rock City Saw Mill 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 Rock City Saw Mill Dam?

Rock City Saw Mill Dam is owned by EDWARD KOVACH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Rock City Saw Mill Dam built?

Rock City Saw Mill Dam was completed in 1900, making it 126 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 Rock City Saw Mill Dam?

Rock City Saw Mill 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 Rock City Saw Mill Dam?

Rock City Saw Mill 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 Rock City Saw Mill Dam last inspected?

Rock City Saw Mill Dam was last inspected on June 3, 2020. 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.