D Mill At Ticonderoga Dam

D Mill At Ticonderoga Dam is a concrete dam located in Essex County, New York, built in 1981. It carries a Significant hazard potential classification.

About D Mill At Ticonderoga Dam

The primary purpose of D Mill At Ticonderoga Dam 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 Central Rivers Power, Llc (private). It impounds the Lachute River near Ticonderoga.

The dam stands 20 feet tall and stretches 363 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 14 acre-feet. Completed in 1981, the structure is 45 years 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. The most recent inspection on record was 09/01/2022.

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Significant HazardNot Rated ConditionEmergency Action Plan: No

Location

StateNew York
CountyEssex
Nearest CityTiconderoga
River/StreamLachute River
Coordinates43.84639, -73.42833

Physical Characteristics

Dam TypeConcrete
NID Height20 ft
Dam Height20 ft
Dam Length363 ft
Year Completed1981 (45 years old)

Storage & Hydraulics

NID Storage14 acre-ft
Max Storage14 acre-ft
Normal Storage13 acre-ft
Surface Area2 acres
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerCentral Rivers Power, LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection09/01/2022
Emergency Action PlanNo

Identifiers

NID IDNY14017
Federal IDNY14017
More InfoState Dam Safety Program

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