Morony

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMontana
CountyCascade
Nearest CityFort Benton
River/StreamMissouri River
Coordinates47.58140, -111.05990

Physical Characteristics

Dam TypeGravity
NID Height107 ft
Dam Height70 ft
Dam Length842 ft
Year Completed1929 (97 years old)

Storage & Hydraulics

NID Storage13,889 acre-ft
Max Storage13,889 acre-ft
Normal Storage13,598 acre-ft
Surface Area304 acres
Drainage Area23,292 sq mi
Max Discharge153,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerNorthWestern Energy
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection09/10/2024
Emergency Action PlanYes

Identifiers

NID IDMT00563
Federal IDMT00563
More InfoState Dam Safety Program

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