Quinebaug

Quinebaug River· Windham, Connecticut· Built 1855· Masonry· 14 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Quinebaug is classified as low hazard in Connecticut. It was completed in 1855 and is 171 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 14 ft (taller than 54.3% in CT)
Dam Length250 ft
Dam TypeMasonry
Max Storage283 acre-ft
Normal Storage283 acre-ft
Surface Area85 acres
Drainage Area384 sq mi
Max Discharge6,934 cfs
Year Completed1855 (171 years old)
NID IDCT00513

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: September 12, 2022
State Regulated: No

Ownership

Quinebaug Associates, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Quinebaug?

Quinebaug is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Quinebaug?

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

When was Quinebaug built?

Quinebaug was completed in 1855, making it 171 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 Quinebaug?

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

How tall is Quinebaug?

Quinebaug 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 Quinebaug last inspected?

Quinebaug was last inspected on September 12, 2022. 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.