Mountain Lake Dam

Mountain Lake Dam is an earth dam located in Litchfield County, Connecticut, built in 1956. It carries a Significant hazard potential classification and has a poor condition assessment.

About Mountain Lake Dam

The primary purpose of Mountain Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Christian Youth Fellowship Inc (private). It impounds the Trib To Lake Waramaug Brook near Warren.

The dam stands 8 feet tall and stretches 465 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1956, the structure is well into its service life at over 50 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/22/2023.

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Significant HazardPoor ConditionEmergency Action Plan: No

Location

StateConnecticut
CountyLitchfield
Nearest CityWarren
River/StreamTrib To Lake Waramaug Brook
Coordinates41.72055, -73.37573

Physical Characteristics

Dam TypeEarth
NID Height8 ft
Dam Height8 ft
Dam Length465 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage66 acre-ft
Max Storage66 acre-ft
Normal Storage66 acre-ft
Surface Area17 acres
Drainage Area0 sq mi
Max Discharge343 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerChristian Youth Fellowship Inc
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection08/22/2023
Emergency Action PlanNo

Identifiers

NID IDCT00635
Federal IDCT00635
More InfoState Dam Safety Program

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