Great Pond Dam

NORWALK RIVER TRIB· Fairfield, Connecticut· Earth· 20 ft tall

High Hazard Other Local Government

Key Takeaway

Great Pond Dam is classified as high hazard in Connecticut. Its primary use is other. 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	20 ft (taller than 72.5% in CT)
Dam Length	150 ft
Dam Type	Earth
Max Storage	221 acre-ft
Normal Storage	200 acre-ft

Surface Area	21 acres
Drainage Area	0 sq mi
NID ID	CT50020

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: April 22, 2020

State Regulated: Yes

Regulatory Agency: DEEP

Ownership

Town of Ridgefield

Local Government

Nearby Dams

Field Dam

Fairfield, CT

Significant Hazard 8 ft

Saugatuck River Dam

Fairfield, CT

Significant Hazard 10 ft

Taylors Pond Dam

Fairfield, CT

Significant Hazard 9 ft

Great Swamp Flood Control Dam

Fairfield, CT

High Hazard 12 ft

Millers Pond Dam #1

Fairfield, CT

Significant Hazard 13 ft

Steichens Pond Dam

Fairfield, CT

Significant Hazard 10 ft

Waubeeka Lake Dam

Fairfield, CT

Significant Hazard 10 ft

Wataba Lake Dam

Fairfield, CT

Significant Hazard 10 ft

Frequently Asked Questions

What is the hazard classification of Great Pond Dam?

Great Pond 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 Great Pond Dam?

Great Pond Dam is owned by Town of Ridgefield (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Great Pond Dam?

Great Pond Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Great Pond Dam?

Great Pond Dam has a dam height of 20 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 Great Pond Dam last inspected?

Great Pond Dam was last inspected on April 22, 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.