Chalkers Millpond Dam

OYSTER RIVER· Middlesex, Connecticut· Built 1845· Earth· 5 ft tall
Significant Hazard Recreation Private

Key Takeaway

Chalkers Millpond Dam is classified as significant hazard in Connecticut. It was completed in 1845 and is 181 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 5 ft (taller than 5.1% in CT)
Dam Length325 ft
Dam TypeEarth
Max Storage55 acre-ft
Normal Storage55 acre-ft
Surface Area11 acres
Drainage Area2 sq mi
Max Discharge46 cfs
Year Completed1845 (181 years old)
NID IDCT00415

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: December 30, 2014
State Regulated: Yes
Regulatory Agency: DEEP

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Chalkers Millpond Dam?

Chalkers Millpond 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 Chalkers Millpond Dam?

Chalkers Millpond Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Chalkers Millpond Dam built?

Chalkers Millpond Dam was completed in 1845, making it 181 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 Chalkers Millpond Dam?

Chalkers Millpond 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 Chalkers Millpond Dam?

Chalkers Millpond Dam has a dam height of 5 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 Chalkers Millpond Dam last inspected?

Chalkers Millpond Dam was last inspected on December 30, 2014. 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.