Dolezal No. 6

Dolezal No. 6 is an earth dam located in Mellette County, South Dakota, built in 1968. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height29 ft
Built196858 years ago

Dam profile

NID height · 29 ft
29 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

29 ft tall and 380 ft long, taller than 65% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Dolezal No. 6

The primary purpose of Dolezal No. 6 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 John Dolezal (private). It impounds the Trib. Little White River.

The dam stands 29 feet tall and stretches 380 feet across, and has a maximum storage capacity of 40 acre-feet. Completed in 1968, 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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Location

StateSouth Dakota
CountyMellette
Nearest CityNone
River/StreamTrib. Little White River
Coordinates43.57833, -100.69666

Physical Characteristics

Dam TypeEarth
NID Height29 ft
Dam Height29 ft
Dam Length380 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage40 acre-ft
Max Storage40 acre-ft
Normal Storage30 acre-ft
Max Discharge1,155 cfs

Ownership & Safety

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

Identifiers

NID IDSD01276
Federal IDSD01276
More InfoState Dam Safety Program