Big Coon Subwatershed Site 6h-2

Big Coon Subwatershed Site 6h-2 is an earth dam located in Woodbury County, Iowa, built in 1999. It carries a Low hazard potential classification.

About Big Coon Subwatershed Site 6h-2

The primary purpose of Big Coon Subwatershed Site 6h-2 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 Woodbury County Swcd (local government). It impounds the Tr- Big Creek near Anthon.

The dam stands 33 feet tall and stretches 430 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 78 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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.

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
CountyWoodbury
Nearest CityAnthon
River/StreamTr- Big Creek
Coordinates42.35940, -95.75240

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length430 ft
Year Completed1999 (27 years old)

Storage & Hydraulics

NID Storage78 acre-ft
Max Storage78 acre-ft
Normal Storage29 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerWoodbury County SWCD
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA03433
Federal IDIA03433
More InfoState Dam Safety Program

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