Crosby Pond Dam

MILL BROOK· Middlesex, Massachusetts· Concrete· 9 ft tall
Significant Hazard Recreation Private

Key Takeaway

Crosby Pond Dam is classified as significant hazard in Massachusetts. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 9 ft (taller than 12.4% in MA)
Dam Length80 ft
Dam TypeConcrete
Max Storage30 acre-ft
Normal Storage30 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
NID IDMA01535

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
Last Inspection: May 14, 2012
State Regulated: Yes
Regulatory Agency: DEPARTMENT OF CONSERVATION AND RECREATION

Ownership

JOHN H. CROSBY

Private

Nearby Dams

Estabrook Farm Pond Dam

Middlesex, MA

Low Hazard 22 ft

Farrar Pond Dam

Middlesex, MA

Low Hazard 9 ft

Valley Pond Dam

Middlesex, MA

Significant Hazard 14 ft

Valley Pond Dike

Middlesex, MA

Significant Hazard 11 ft

Barretts Mill Road Dam

Middlesex, MA

Low Hazard 9 ft

Cambridge Reservoir Dam

Middlesex, MA

High Hazard 31 ft

Warners Pond Dam

Middlesex, MA

Significant Hazard 9 ft

Hobbs Pond Dam

Middlesex, MA

Low Hazard 9 ft

Frequently Asked Questions

What is the hazard classification of Crosby Pond Dam?

Crosby Pond 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 Crosby Pond Dam?

Crosby Pond Dam is owned by JOHN H. CROSBY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Crosby Pond Dam?

Crosby Pond 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 Crosby Pond Dam?

Crosby Pond Dam has a dam height of 9 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 Crosby Pond Dam last inspected?

Crosby Pond Dam was last inspected on May 14, 2012. 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.