North Harwich Reservoir Dam

Barnstable, Massachusetts· Concrete· 8 ft tall
Low Hazard Irrigation Local Government

Key Takeaway

North Harwich Reservoir Dam is classified as low hazard in Massachusetts. Its primary use is irrigation.

Physical Details

Dam Height 8 ft (taller than 6.7% in MA)
Dam TypeConcrete
Max Storage216 acre-ft
Normal Storage180 acre-ft
Surface Area0 acres
Drainage Area2 sq mi
NID IDMA02423

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: August 25, 2009
State Regulated: Yes
Regulatory Agency: DEPARTMENT OF CONSERVATION AND RECREATION

Ownership

TOWN OF HARWICH, BOARD OF SELECTMEN

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of North Harwich Reservoir Dam?

North Harwich Reservoir 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 North Harwich Reservoir Dam?

North Harwich Reservoir Dam is owned by TOWN OF HARWICH, BOARD OF SELECTMEN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of North Harwich Reservoir Dam?

North Harwich Reservoir Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is North Harwich Reservoir Dam?

North Harwich Reservoir Dam has a dam height of 8 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 North Harwich Reservoir Dam last inspected?

North Harwich Reservoir Dam was last inspected on August 25, 2009. 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.