Hollingsworth & Vose Co. Dam

SQUANNACOOK RIVER· Middlesex, Massachusetts· Built 1900· Earth· 17 ft tall
Low Hazard Water Supply Private

Key Takeaway

Hollingsworth & Vose Co. Dam is classified as low hazard in Massachusetts. It was completed in 1900 and is 126 years old. Its primary use is water supply.

Physical Details

Dam Height 17 ft (taller than 60.3% in MA)
Dam Length150 ft
Dam TypeEarth
Max Storage350 acre-ft
Normal Storage156 acre-ft
Surface Area22 acres
Drainage Area68 sq mi
Year Completed1900 (126 years old)
NID IDMA00443

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: November 7, 2014
State Regulated: Yes
Regulatory Agency: DEPARTMENT OF CONSERVATION AND RECREATION

Ownership

HOLLINGSWORTH & VOSE COMPANY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hollingsworth & Vose Co. Dam?

Hollingsworth & Vose Co. Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Hollingsworth & Vose Co. Dam?

Hollingsworth & Vose Co. Dam is owned by HOLLINGSWORTH & VOSE COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hollingsworth & Vose Co. Dam built?

Hollingsworth & Vose Co. 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 Hollingsworth & Vose Co. Dam?

Hollingsworth & Vose Co. Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hollingsworth & Vose Co. Dam?

Hollingsworth & Vose Co. Dam has a dam height of 17 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 Hollingsworth & Vose Co. Dam last inspected?

Hollingsworth & Vose Co. Dam was last inspected on November 7, 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.