Upper Unionville Reservoir Dam

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateConnecticut
CountyHartford
Nearest CityUNIONVILLE
River/StreamHAWLEY BROOK
Coordinates41.78607, -72.90919

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length220 ft
Year Completed1909 (117 years old)

Storage & Hydraulics

NID Storage18 acre-ft
Max Storage18 acre-ft
Normal Storage17 acre-ft
Surface Area1 acres
Drainage Area0 sq mi
Max Discharge100 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTown of Avon
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection12/03/2024
Emergency Action PlanYes

Identifiers

NID IDCT00267
Federal IDCT00267
More InfoState Dam Safety Program

Nearby Dams

Lower Unionville Reservoir Dam 0.1 mi Significant Lovely Pond Dam 1.0 mi Significant Punch Brook Pond Dam 1.3 mi Significant Collins Company Lower Dam 1.4 mi Significant Henry's Pond #2 Dam 1.4 mi Significant Paparrazzo Dam 1.6 mi Significant Ratlum Fish And Game Club Pond Dam 1.8 mi Significant Bradley Pond Dam 1.8 mi Significant Upper Collinsville 1.9 mi Significant Nepaug East Dike 2.8 mi High