Quassett Lake Road Dam

MILL BROOK TRIB· Windham, Connecticut· Built 1855· Earth· 14 ft tall
Significant Hazard Recreation Private

Key Takeaway

Quassett Lake Road Dam is classified as significant hazard in Connecticut. It was completed in 1855 and is 171 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 14 ft (taller than 54.3% in CT)
Dam Length320 ft
Dam TypeEarth
Max Storage478 acre-ft
Normal Storage478 acre-ft
Surface Area91 acres
Drainage Area1 sq mi
Max Discharge156 cfs
Year Completed1855 (171 years old)
NID IDCT00442

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: Yes
Last Inspection: October 27, 2016
State Regulated: Yes
Regulatory Agency: DEEP

Ownership

Quasset Lake District

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Quassett Lake Road Dam?

Quassett Lake Road 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 Quassett Lake Road Dam?

Quassett Lake Road Dam is owned by Quasset Lake District (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Quassett Lake Road Dam built?

Quassett Lake Road Dam 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 Quassett Lake Road Dam?

Quassett Lake Road 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 Quassett Lake Road Dam?

Quassett Lake Road Dam 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 Quassett Lake Road Dam last inspected?

Quassett Lake Road Dam was last inspected on October 27, 2016. 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.