Marcalus Manufacturing Company Dam

STONY BROOK· Hampshire, Massachusetts· Concrete· 27 ft tall
High Hazard Recreation Private

Key Takeaway

Marcalus Manufacturing Company Dam is classified as high hazard in Massachusetts. Its primary use is recreation. 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 27 ft (taller than 82.9% in MA)
Dam Length84 ft
Dam TypeConcrete
Max Storage19 acre-ft
Normal Storage11 acre-ft
Surface Area2 acres
Drainage Area20 sq mi
NID IDMA00585

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: January 19, 2017
State Regulated: Yes
Regulatory Agency: DEPARTMENT OF CONSERVATION AND RECREATION

Ownership

THE MILL AT STONEY BROOK CONDO ASSOCIATION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Marcalus Manufacturing Company Dam?

Marcalus Manufacturing Company 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 Marcalus Manufacturing Company Dam?

Marcalus Manufacturing Company Dam is owned by THE MILL AT STONEY BROOK CONDO ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Marcalus Manufacturing Company Dam?

Marcalus Manufacturing Company 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 Marcalus Manufacturing Company Dam?

Marcalus Manufacturing Company Dam has a dam height of 27 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 Marcalus Manufacturing Company Dam last inspected?

Marcalus Manufacturing Company Dam was last inspected on January 19, 2017. 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.