Big Casino Creek Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMontana
CountyFergus
Nearest CityLEWISTOWN
River/StreamBIG CASINO CREEK
Coordinates47.03680, -109.43010

Physical Characteristics

Dam TypeEarth
NID Height80 ft
Dam Height68 ft
Dam Length1,056 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage2,063 acre-ft
Max Storage2,063 acre-ft
Normal Storage124 acre-ft
Surface Area72 acres
Drainage Area19 sq mi
Max Discharge16,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCITY OF LEWISTOWN
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection06/15/2020
Emergency Action PlanYes

Identifiers

NID IDMT01569
Federal IDMT01569
More InfoState Dam Safety Program

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