Giesking Dam

Giesking Dam is an earth dam located in Tama County, Iowa, built in 2022. It carries a Low hazard potential classification.

About Giesking Dam

The primary purpose of Giesking Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Wendell Giesking (private). It impounds the Unnamed Tributary To Twelvemile Creek near Traer.

The dam stands 18 feet tall and stretches 523 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 77 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2022, 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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyTama
Nearest CityTraer
River/StreamUnnamed Tributary To Twelvemile Creek
Coordinates42.23670, -92.59320

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length523 ft
Year Completed2022 (4 years old)

Storage & Hydraulics

NID Storage77 acre-ft
Max Storage77 acre-ft
Normal Storage39 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerWendell Giesking
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDIA04346
Federal IDIA04346
More InfoState Dam Safety Program

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