Beaver Brook Dam

BEAVER BROOK· Rockingham, New Hampshire· Built 1929· Stone· 7 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Beaver Brook Dam is classified as low hazard in New Hampshire. It was completed in 1929 and is 97 years old. Its primary use is recreation.

Physical Details

Dam Height 7 ft (taller than 1.4% in NH)
Dam Length150 ft
Dam TypeStone
Max Storage107 acre-ft
Normal Storage67 acre-ft
Surface Area40 acres
Drainage Area11 sq mi
Max Discharge1,572 cfs
Year Completed1929 (97 years old)
Year Modified2013
NID IDNH00436

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: October 3, 2019
State Regulated: Yes
Regulatory Agency: NH DES

Ownership

TOWN OF DERRY

Local Government

Nearby Dams

Hoods Pond Dam

Rockingham, NH

High Hazard 27 ft

Derry Waste Lagoon Dam

Rockingham, NH

Significant Hazard 21 ft

Harantis Lake Dam

Rockingham, NH

Significant Hazard 14 ft

Skating Pond Dam

Rockingham, NH

Unknown 8 ft

Century Village Dam

Rockingham, NH

Significant Hazard 8 ft

Winding Brook Road Dam

Rockingham, NH

Significant Hazard 8 ft

Ballard Pond Upper Dam

Rockingham, NH

Low Hazard 7 ft

Kendall Pond Dam

Rockingham, NH

Low Hazard 12 ft

Frequently Asked Questions

What is the hazard classification of Beaver Brook Dam?

Beaver Brook 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 Beaver Brook Dam?

Beaver Brook Dam is owned by TOWN OF DERRY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Beaver Brook Dam built?

Beaver Brook Dam was completed in 1929, making it 97 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 Beaver Brook Dam?

Beaver Brook 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 Beaver Brook Dam?

Beaver Brook Dam has a dam height of 7 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 Beaver Brook Dam last inspected?

Beaver Brook Dam was last inspected on October 3, 2019. 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.