Spencer Dam

Spencer Dam is an earth dam located in Harrison County, Iowa, built in 2007. It carries a Low hazard potential classification.

About Spencer Dam

The primary purpose of Spencer 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 Ralph E Spencer Iii (private). It impounds the Tr- Harris Grove Creek near Missouri Valley.

The dam stands 47 feet tall and stretches 378 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 93 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2007, 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 47 feet, this dam is taller than 92% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyHarrison
Nearest CityMissouri Valley
River/StreamTr- Harris Grove Creek
Coordinates41.58590, -95.73340

Physical Characteristics

Dam TypeEarth
NID Height47 ft
Dam Height47 ft
Dam Length378 ft
Year Completed2007 (19 years old)

Storage & Hydraulics

NID Storage93 acre-ft
Max Storage93 acre-ft
Normal Storage57 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerRalph E Spencer III
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA03669
Federal IDIA03669
More InfoState Dam Safety Program

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