Lake Triangle Camp Jewell Dam

Lake Triangle Camp Jewell Dam is an earth dam located in Litchfield County, Connecticut, built in 1952. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Lake Triangle Camp Jewell Dam

The primary purpose of Lake Triangle Camp Jewell Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Greater Hartford Ymca (private). It impounds the North Brook near Colebrook.

The dam stands 10 feet tall and stretches 300 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 365 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1952, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/25/2024.

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Significant HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateConnecticut
CountyLitchfield
Nearest CityColebrook
River/StreamNorth Brook
Coordinates42.02178, -73.10260

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length300 ft
Year Completed1952 (74 years old)

Storage & Hydraulics

NID Storage365 acre-ft
Max Storage365 acre-ft
Normal Storage365 acre-ft
Surface Area50 acres
Drainage Area3 sq mi
Max Discharge790 cfs

Ownership & Safety

PurposeRecreation
OwnerGreater Hartford YMCA
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection06/25/2024
Emergency Action PlanNo

Identifiers

NID IDCT00455
Federal IDCT00455
More InfoState Dam Safety Program

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