Onota Lake Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyBerkshire
Nearest CityPittsfield
River/StreamPecks/Onota Brook
Coordinates42.47626, -73.26719

Physical Characteristics

Dam TypeConcrete
NID Height18 ft
Dam Length240 ft
Year Completed1865 (161 years old)

Storage & Hydraulics

NID Storage6,800 acre-ft
Max Storage6,800 acre-ft
Normal Storage3,300 acre-ft
Surface Area660 acres
Drainage Area10 sq mi
Max Discharge2,400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCity of Pittsfield
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/11/2023
Emergency Action PlanYes

Identifiers

NID IDMA00016
Federal IDMA00016
More InfoState Dam Safety Program

Nearby Dams

Pecks Lower Pond Dam 0.4 mi Significant Bel Air Dam 1.0 mi High Pontoosuc Lake Dam 1.2 mi High Wild Acres Pond No. 2 Dam 3.6 mi Low Government Mill Dam 3.8 mi Significant Richmond Pond Dam 4.9 mi Significant Byron Weston Dam No. 1 5.6 mi Significant Upper Sackett Reservoir Dam 6.5 mi High Farnham Reservoir Dam 6.7 mi High Egypt Reservoir Dam 6.7 mi High