Jim Detention Dam

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyValley
Nearest CityNASHUA
River/StreamWILLOW CK./MILK RIVER
Coordinates48.02709, -107.06314

Physical Characteristics

Dam TypeGravity
NID Height19 ft
Dam Length1,150 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage1,380 acre-ft
Max Storage1,320 acre-ft
Normal Storage1,380 acre-ft
Surface Area163 acres
Drainage Area25 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/24/2017
Emergency Action PlanNot Required

Identifiers

NID IDMT00735
Federal IDMT00735
More InfoState Dam Safety Program

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