Moulton Watershed Site B-9

Moulton Watershed Site B-9 is an earth dam located in Appanoose County, Iowa, built in 1963. It carries a Low hazard potential classification.

About Moulton Watershed Site B-9

The primary purpose of Moulton Watershed Site B-9 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 Appanoose County Board Of Supervisors (local government). It impounds the Tr-chariton River near Sedan.

The dam stands 22 feet tall and stretches 437 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 61 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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
CountyAppanoose
Nearest CitySedan
River/StreamTr-chariton River
Coordinates40.67760, -92.73300

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height22 ft
Dam Length437 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage61 acre-ft
Max Storage61 acre-ft
Normal Storage14 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerAppanoose County Board of Supervisors
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA00106
Federal IDIA00106
More InfoState Dam Safety Program

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