Dieterich Dam #2

MILL BROOK· Dutchess, New York· Built 1910· Masonry· 14 ft tall
Significant Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Dieterich Dam #2 is classified as significant hazard in New York. It was completed in 1910 and is 116 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 14 ft (taller than 33.5% in NY)
Dam Length525 ft
Dam TypeMasonry
Max Storage14 acre-ft
Normal Storage12 acre-ft
Surface Area3 acres
Max Discharge1,150 cfs
Year Completed1910 (116 years old)
NID IDNY13821

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: April 16, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

Madapen Farm LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dieterich Dam #2?

Dieterich Dam #2 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 Dieterich Dam #2?

Dieterich Dam #2 is owned by Madapen Farm LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dieterich Dam #2 built?

Dieterich Dam #2 was completed in 1910, making it 116 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 Dieterich Dam #2?

Dieterich Dam #2 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Dieterich Dam #2?

Dieterich Dam #2 has a dam height of 14 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 Dieterich Dam #2 last inspected?

Dieterich Dam #2 was last inspected on April 16, 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.