Patch Reservoir Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyWorcester
Nearest CityWorcester
River/StreamTatnuck Brook
Coordinates42.26850, -71.85135

Physical Characteristics

Dam TypeMasonry
NID Height8 ft
Dam Length70 ft
Year Completed1896 (130 years old)

Storage & Hydraulics

NID Storage187 acre-ft
Max Storage187 acre-ft
Normal Storage85 acre-ft
Surface Area34 acres
Drainage Area9 sq mi
Max Discharge950 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCity of Worcester
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection05/01/2023
Emergency Action PlanYes

Identifiers

NID IDMA00122
Federal IDMA00122
More InfoState Dam Safety Program

Nearby Dams

Patch Pond Dam 0.4 mi High Smith Mill Pond Dam 0.5 mi Significant Cook's Pond Dam 1.1 mi High Coes Reservoir Dam 1.4 mi High Lynde Brook Reservoir Dike 1.6 mi High Coes Lower Pond Dam 1.6 mi Significant Parsons Reservoir Dam 1.7 mi Significant Lynde Brook Reservoir Dam 1.7 mi High Curtis Ponds Dam 1.9 mi Significant Holden Reservoir Dam No. 2 2.1 mi High