Comtu Falls

Comtu Falls is a gravity dam located in Windsor County, Vermont, built in 1902. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Comtu Falls

The primary purpose of Comtu Falls is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Comtu Falls Corporation (private). It impounds the Black River.

The dam stands 4 feet tall and stretches 140 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 2 acre-feet, and collects water from a drainage area of 190 square miles. Completed in 1902, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/12/2022.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateVermont
CountyWindsor
River/StreamBlack River
Coordinates43.29880, -72.48280

Physical Characteristics

Dam TypeGravity
NID Height4 ft
Dam Height4 ft
Dam Length140 ft
Year Completed1902 (124 years old)

Storage & Hydraulics

NID Storage2 acre-ft
Max Storage2 acre-ft
Normal Storage2 acre-ft
Surface Area1 acres
Drainage Area190 sq mi
Max Discharge13,534 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerComtu Falls Corporation
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection08/12/2022
Emergency Action PlanYes

Identifiers

NID IDVT83029
Federal IDVT83029
More InfoState Dam Safety Program

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