Crystal Lake Dam

CRYSTAL LAKE BROOK· Tolland, Connecticut· Built 1900· Earth· 11 ft tall
Significant Hazard Recreation Private

Key Takeaway

Crystal Lake Dam is classified as significant hazard in Connecticut. It was completed in 1900 and is 126 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 11 ft (taller than 37.9% in CT)
Dam Length250 ft
Dam TypeEarth
Max Storage1.5K acre-ft
Normal Storage1.5K acre-ft
Surface Area178 acres
Drainage Area3 sq mi
Max Discharge350 cfs
Year Completed1900 (126 years old)
Year Modified2016
NID IDCT00341

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
State Regulated: Yes
Regulatory Agency: DEEP

Ownership

Roberson

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Crystal Lake Dam?

Crystal Lake 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 Crystal Lake Dam?

Crystal Lake Dam is owned by Roberson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Crystal Lake Dam built?

Crystal Lake Dam was completed in 1900, making it 126 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 Crystal Lake Dam?

Crystal Lake 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 Crystal Lake Dam?

Crystal Lake Dam has a dam height of 11 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.

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.