Eilen Wpa

Eilen Wpa is an earth dam located in Deuel County, South Dakota, built in 1989. It carries a Low hazard potential classification.

About Eilen Wpa

The primary purpose of Eilen Wpa is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Usfws (federal). It impounds the Monighan Creek.

The dam stands 9 feet tall and stretches 266 feet across, creates a reservoir covering 89 acres, has a maximum storage capacity of 725 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1989, the structure is 37 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateSouth Dakota
CountyDeuel
River/StreamMonighan Creek
Coordinates44.80074, -96.55456

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length266 ft
Year Completed1989 (37 years old)

Storage & Hydraulics

NID Storage725 acre-ft
Max Storage725 acre-ft
Normal Storage257 acre-ft
Surface Area89 acres
Drainage Area22 sq mi
Max Discharge3,475 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerUSFWS
Owner TypeFederal
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDSD02520
Federal IDSD02520
More InfoState Dam Safety Program

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