Beckwith Dam

Beckwith Dam is an earth dam located in Haakon County, South Dakota, built in 1977. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height75 ft
Built197749 years ago

Dam profile

NID height · 75 ft
75 FT TEN-STORY BUILDINGMEDIAN U.S. DAM · 24 FT

75 ft tall and 600 ft long, taller than 97% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.

About Beckwith Dam

The primary purpose of Beckwith 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 James Beckwith (private). It impounds the W. Fork Hermaphrodite Creek-tr.

The dam stands 75 feet tall and stretches 600 feet across, and has a maximum storage capacity of 400 acre-feet. Completed in 1977, the structure is 49 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 75 feet, this dam is taller than 97% of all dams in the United States.

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Location

StateSouth Dakota
CountyHaakon
Nearest CityNone
River/StreamW. Fork Hermaphrodite Creek-tr
Coordinates44.57709, -101.26245

Physical Characteristics

Dam TypeEarth
NID Height75 ft
Dam Height75 ft
Dam Length600 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage400 acre-ft
Max Storage400 acre-ft
Normal Storage200 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerJames Beckwith
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDSD02184
Federal IDSD02184
More InfoState Dam Safety Program