Nelson Dam

Nelson Dam is an earth dam located in Des Moines County, Iowa, built in 1966. It carries a Low hazard potential classification.

About Nelson Dam

The primary purpose of Nelson 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 Donald Nelson (private). It impounds the Tr-little Flint River near Mississippi River.

The dam stands 24 feet tall and stretches 362 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyDes Moines
Nearest CityMississippi River
River/StreamTr-little Flint River
Coordinates40.86620, -91.27850

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Dam Length362 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage50 acre-ft
Max Storage50 acre-ft
Normal Storage21 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDIA00355
Federal IDIA00355
More InfoState Dam Safety Program

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