Big Sand Watershed Structure Y-32-14 Dam

Big Sand Watershed Structure Y-32-14 Dam is an earth dam located in Carroll County, Mississippi, built in 1966. It carries a Low hazard potential classification.

About Big Sand Watershed Structure Y-32-14 Dam

The primary purpose of Big Sand Watershed Structure Y-32-14 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 local government-owned. It impounds the Unt Of Sand Creek near Malmaison.

The dam stands 33 feet tall and stretches 472 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 434 acre-feet, and collects water from a drainage area of 1 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. The most recent inspection on record was 12/16/2019.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMississippi
CountyCarroll
Nearest CityMalmaison
River/StreamUnt Of Sand Creek
Coordinates33.52635, -90.02212

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length472 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage434 acre-ft
Max Storage434 acre-ft
Normal Storage105 acre-ft
Surface Area14 acres
Drainage Area1 sq mi
Max Discharge371 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
Owner TypeLocal Government
Hazard ClassificationLow
Last Inspection12/16/2019
Emergency Action PlanNot Required

Identifiers

NID IDMS01062
Federal IDMS01062
More InfoState Dam Safety Program

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