Willimantic Reservoir Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateConnecticut
CountyWindham
Nearest CityWILLIMANTIC
River/StreamNATCHAUG RIVER
Coordinates41.74046, -72.19485

Physical Characteristics

Dam TypeConcrete
NID Height29 ft
Dam Height29 ft
Dam Length491.3 ft
Year Completed1885 (141 years old)

Storage & Hydraulics

NID Storage1,670 acre-ft
Max Storage1,670 acre-ft
Normal Storage750 acre-ft
Surface Area100 acres
Drainage Area166 sq mi
Max Discharge38,125 cfs

Ownership & Safety

PurposeWater Supply
OwnerWillimantic Water Works Dept.
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection11/02/2023
Emergency Action PlanYes

Identifiers

NID IDCT00198
Federal IDCT00198
More InfoState Dam Safety Program

Nearby Dams

Mansfield Hollow Dam - Dike C 1.8 mi High Potash Pond Dam 2.8 mi Significant Mansfield Recreation Pond 3.1 mi Significant Bibbins Pond Dam 3.6 mi Significant Smith Pond Dam 3.6 mi Significant Lake Marie Dam 3.7 mi Significant Frog Pond Dam 4.1 mi Significant Decew South Coventry Pond Dam 4.3 mi Significant Cavanaughs Pond Dam 4.3 mi Significant Hansens Pond Dam 4.4 mi Significant