Little Sioux Dam

Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyHarrison
Nearest CityLITTLE SIOUX
River/StreamLITTLE SIOUX RIVER
Coordinates41.85780, -96.10980

Physical Characteristics

Dam TypeGravity
NID Height7 ft
Dam Height7 ft
Dam Length200 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage500 acre-ft
Max Storage500 acre-ft
Normal Storage500 acre-ft
Surface Area143 acres
Drainage Area4,507 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
OwnerLittle Sioux Inter-County Drainage District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA03062
Federal IDIA03062
More InfoState Dam Safety Program

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