Deweys Mills

OTTAUQUECHEE RIVER· Windsor, Vermont· Built 1900· Concrete· 25 ft tall
Low Hazard Hydroelectric Federal Government

Key Takeaway

Deweys Mills is classified as low hazard in Vermont. It was completed in 1900 and is 126 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 25 ft (taller than 66% in VT)
Dam Length395 ft
Dam TypeConcrete
Max Storage1.0K acre-ft
Normal Storage0 acre-ft
Surface Area56 acres
Drainage Area207 sq mi
Year Completed1900 (126 years old)
NID IDVT00155

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: May 9, 2000
State Regulated: No

Ownership

US ARMY CORPS OF ENGINEERS - NAE

Federal Government

Nearby Dams

Deweys Pond

Windsor, VT

Low Hazard 7 ft

Downers Mill

Windsor, VT

Low Hazard 14 ft

Lake Pinneo

Windsor, VT

Low Hazard 10 ft

Hurricane Lower Reservoir

Windsor, VT

Significant Hazard 40 ft

Wright Reservoir

Windsor, VT

Significant Hazard 36 ft

North Hartland Dam

Windsor, VT

High Hazard 182 ft

Taftsville

Windsor, VT

Low Hazard 18 ft

Ottauquechee West Dam

Windsor, VT

Low Hazard 7 ft

Frequently Asked Questions

What is the hazard classification of Deweys Mills?

Deweys Mills 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 Deweys Mills?

Deweys Mills is owned by US ARMY CORPS OF ENGINEERS - NAE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Deweys Mills built?

Deweys Mills was completed in 1900, making it 126 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 Deweys Mills?

Deweys Mills 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 Deweys Mills?

Deweys Mills has a dam height of 25 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 Deweys Mills last inspected?

Deweys Mills was last inspected on May 9, 2000. 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.