Pepperell Paper

Nashua River· Middlesex, Massachusetts· Built 1918· 24 ft tall
High Hazard Hydroelectric Private

Key Takeaway

Pepperell Paper is classified as high hazard in Massachusetts. It was completed in 1918 and is 108 years old. Its primary use is hydroelectric. 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 24 ft (taller than 77.7% in MA)
Dam Length251 ft
Max Storage6.6K acre-ft
Normal Storage4.5K acre-ft
Surface Area294 acres
Drainage Area316 sq mi
Year Completed1918 (108 years old)
NID IDMA00373

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: June 16, 2022
State Regulated: No

Ownership

Pepperell Hydro Company, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pepperell Paper?

Pepperell Paper 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 Pepperell Paper?

Pepperell Paper is owned by Pepperell Hydro Company, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Pepperell Paper built?

Pepperell Paper was completed in 1918, making it 108 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 Pepperell Paper?

Pepperell Paper serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Pepperell Paper?

Pepperell Paper has a dam height of 24 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 Pepperell Paper last inspected?

Pepperell Paper was last inspected on June 16, 2022. 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.