Mormon Trail Lake Dam

Mormon Trail Lake Dam is an earth dam located in Adair County, Iowa, built in 1965. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Mormon Trail Lake Dam

The primary purpose of Mormon Trail Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Adair County Conservation Board (local government). It impounds the Tr-west Fork Nodaway near Mt. Etna.

The dam stands 46 feet tall and stretches 928 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 585 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/23/2014. That was over 11 years ago.

At 46 feet, this dam is taller than 91% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyAdair
Nearest CityMt. Etna
River/StreamTr-west Fork Nodaway
Coordinates41.24310, -94.63650

Physical Characteristics

Dam TypeEarth
NID Height46 ft
Dam Height46 ft
Dam Length928 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage585 acre-ft
Max Storage585 acre-ft
Normal Storage394 acre-ft
Surface Area33 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerAdair County Conservation Board
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/23/2014
Emergency Action PlanNot Required

Identifiers

NID IDIA00021
Federal IDIA00021
More InfoState Dam Safety Program

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