Larson Dam

Larson Dam is an earth dam located in Boone County, Iowa, built in 2001. It carries a Low hazard potential classification.

About Larson Dam

The primary purpose of Larson 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 Larson Family Farms Ltd (private). It impounds the Tr- Big Creek near Big Creek Reservoir.

The dam stands 33 feet tall and stretches 680 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 239 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2001, the structure is relatively new.

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.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyBoone
Nearest CityBig Creek Reservoir
River/StreamTr- Big Creek
Coordinates41.88670, -93.74330

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length680 ft
Year Completed2001 (25 years old)

Storage & Hydraulics

NID Storage239 acre-ft
Max Storage239 acre-ft
Normal Storage132 acre-ft
Surface Area14 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerLarson Family Farms Ltd
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA03580
Federal IDIA03580
More InfoState Dam Safety Program

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