Cold Brook Reservoir Dam

Cold Brook Reservoir Dam is an earth dam located in Fulton County, New York, built in 1878. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Cold Brook Reservoir Dam

The primary purpose of Cold Brook Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Johnstown Water Board (local government). It impounds the Cold Brook near Johnstown.

The dam stands 18 feet tall and stretches 135 feet across, creates a reservoir covering 1 acres, and has a maximum storage capacity of 6 acre-feet. Completed in 1878, 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 04/20/2023.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyFulton
Nearest CityJohnstown
River/StreamCold Brook
Coordinates43.02972, -74.42833

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length135 ft
Year Completed1878 (148 years old)

Storage & Hydraulics

NID Storage6 acre-ft
Max Storage6 acre-ft
Normal Storage5 acre-ft
Surface Area1 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCITY OF JOHNSTOWN WATER BOARD
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/20/2023
Emergency Action PlanYes

Identifiers

NID IDNY12843
Federal IDNY12843
More InfoState Dam Safety Program

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