Iowa Noname20

Iowa Noname20 is an earth dam located in Humboldt County, Iowa, built in 1968. It carries a Low hazard potential classification.

About Iowa Noname20

The primary purpose of Iowa Noname20 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 Humboldt County Board Of Supervisors (local government). It impounds the Tr-east Branch Des Moines Riv near Dakota City.

The dam stands 21 feet tall and stretches 360 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 81 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1968, 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. The most recent inspection on record was 09/12/1963. That was over 62 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyHumboldt
Nearest CityDakota City
River/StreamTr-east Branch Des Moines Riv
Coordinates42.78220, -94.11850

Physical Characteristics

Dam TypeEarth
NID Height21 ft
Dam Height21 ft
Dam Length360 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage81 acre-ft
Max Storage81 acre-ft
Normal Storage31 acre-ft
Surface Area4 acres
Drainage Area1 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerHumboldt County Board of Supervisors
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/12/1963
Emergency Action PlanNot Required

Identifiers

NID IDIA00497
Federal IDIA00497
More InfoState Dam Safety Program

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