Morrill Mill Pond Dam

CRANE NECK BROOK· Merrimack, New Hampshire· Built 1800· Earth· 11 ft tall
Low Hazard Fish And Wildlife Pond State Government

Key Takeaway

Morrill Mill Pond Dam is classified as low hazard in New Hampshire. It was completed in 1800 and is 226 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 11 ft (taller than 23.8% in NH)
Dam Length150 ft
Dam TypeEarth
Max Storage114 acre-ft
Normal Storage102 acre-ft
Surface Area29 acres
Drainage Area3 sq mi
Max Discharge593 cfs
Year Completed1800 (226 years old)
Year Modified1996
NID IDNH01032

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: September 26, 2019
State Regulated: Yes
Regulatory Agency: NH DES

Ownership

NH FISH AND GAME DEPARTMENT

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Morrill Mill Pond Dam?

Morrill Mill Pond 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 Morrill Mill Pond Dam?

Morrill Mill Pond Dam is owned by NH FISH AND GAME DEPARTMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Morrill Mill Pond Dam built?

Morrill Mill Pond Dam was completed in 1800, making it 226 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 Morrill Mill Pond Dam?

Morrill Mill Pond Dam serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Morrill Mill Pond Dam?

Morrill Mill Pond Dam has a dam height of 11 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 Morrill Mill Pond Dam last inspected?

Morrill Mill Pond Dam was last inspected on September 26, 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.