Millbrook Pond

CONGDON RIVER· Washington, Rhode Island· Built 1895· Rockfill· 7 ft tall
Low Hazard Recreation Private

Key Takeaway

Millbrook Pond is classified as low hazard in Rhode Island. It was completed in 1895 and is 131 years old. Its primary use is recreation.

Physical Details

Dam Height 7 ft (taller than 8.1% in RI)
Dam Length95 ft
Dam TypeRockfill
Max Storage234 acre-ft
Normal Storage175 acre-ft
Surface Area35 acres
Drainage Area2 sq mi
Max Discharge75 cfs
Year Completed1895 (131 years old)
NID IDRI01101

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
State Regulated: No

Ownership

THREEBROOK LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Millbrook Pond?

Millbrook Pond 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 Millbrook Pond?

Millbrook Pond is owned by THREEBROOK LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Millbrook Pond built?

Millbrook Pond was completed in 1895, making it 131 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 Millbrook Pond?

Millbrook Pond 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 Millbrook Pond?

Millbrook Pond 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.

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.