Mc Millan Dam

Mc Millan Dam is an earth dam located in Decatur County, Iowa, built in 1987. It carries a Low hazard potential classification.

About Mc Millan Dam

The primary purpose of Mc Millan Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Thomas Mcmillan (private). It impounds the Tr- Little near State Of Missouri.

The dam stands 28 feet tall and stretches 510 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 71 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1987, the structure is 39 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 HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyDecatur
Nearest CityState Of Missouri
River/StreamTr- Little
Coordinates40.73100, -93.76850

Physical Characteristics

Dam TypeEarth
NID Height28 ft
Dam Height28 ft
Dam Length510 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage71 acre-ft
Max Storage71 acre-ft
Normal Storage42 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerThomas McMillan
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA02513
Federal IDIA02513
More InfoState Dam Safety Program

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