Lark Detention Dam

Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyPhillips
Nearest CityFORT PECK
River/StreamROCK CK./MISSOURI RIVER
Coordinates47.74068, -108.53115

Physical Characteristics

Dam TypeGravity
NID Height41 ft
Dam Length513 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage215 acre-ft
Max Storage215 acre-ft
Surface Area12 acres
Drainage Area1 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/15/2016
Emergency Action PlanNot Required

Identifiers

NID IDMT00726
Federal IDMT00726
More InfoState Dam Safety Program

Nearby Dams

Lazy J-d #4 1.7 mi Low Bar Island Detention Dam 2.1 mi Low Seven-up Detention Dam 2.6 mi Low Square Butte Detention Dam 2.9 mi Low Gull Wing Detention Dam 3.6 mi Low Little Bunny Detention Dam 4.1 mi Low Lazy J-d #1 4.3 mi Low Lazy J-d #2 4.4 mi Low Sentinel Detention Dam 4.9 mi Low Sagebrush #2 5.6 mi Low