Lannom Dam

Lannom Dam is an earth dam located in Poweshiek County, Iowa, built in 1990. It carries a Low hazard potential classification.

About Lannom Dam

The primary purpose of Lannom 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 Sharp Lannom (private). It impounds the Tr- Sugar Creek near Union Mills.

The dam stands 30 feet tall and stretches 400 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1990, the structure is 36 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
CountyPoweshiek
Nearest CityUnion Mills
River/StreamTr- Sugar Creek
Coordinates41.67000, -92.75370

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length400 ft
Year Completed1990 (36 years old)

Storage & Hydraulics

NID Storage141 acre-ft
Max Storage141 acre-ft
Normal Storage66 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDIA02552
Federal IDIA02552
More InfoState Dam Safety Program

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