Dover Greens Dam

TR-SWAMP RIVER· Dutchess, New York· Built 1918· Concrete· 60 ft tall
High Hazard Water Supply Private

Key Takeaway

Dover Greens Dam is classified as high hazard in New York. It was completed in 1918 and is 108 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 60 ft (taller than 94.6% in NY)
Dam Length240 ft
Dam TypeConcrete
Max Storage222 acre-ft
Normal Storage175 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge1,114 cfs
Year Completed1918 (108 years old)
NID IDNY00273

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: August 2, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

Dover Greens, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dover Greens Dam?

Dover Greens Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Dover Greens Dam?

Dover Greens Dam is owned by Dover Greens, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dover Greens Dam built?

Dover Greens Dam was completed in 1918, making it 108 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 Dover Greens Dam?

Dover Greens 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 Dover Greens Dam?

Dover Greens Dam has a dam height of 60 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 Dover Greens Dam last inspected?

Dover Greens Dam was last inspected on August 2, 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.