Jawbone Dam #1

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMontana
CountyWheatland
Nearest CityHARLOWTON
River/StreamJAWBONE CREEK
Coordinates46.44510, -109.83960

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height31 ft
Dam Length650 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage1,933 acre-ft
Max Storage1,933 acre-ft
Drainage Area1 sq mi
Max Discharge140 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerCITY OF HARLOWTON
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/01/2020
Emergency Action PlanYes

Identifiers

NID IDMT00070
Federal IDMT00070
More InfoState Dam Safety Program

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