Randall Rc&d Ca-1-bh

Randall Rc&d Ca-1-bh is an earth dam located in Bon Homme County, South Dakota, built in 1967. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection04/07/1981
Height25 ft
Built196759 years ago

Dam profile

NID height · 25 ft
25 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

25 ft tall and 290 ft long, taller than 50% 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 Randall Rc&d Ca-1-bh

The primary purpose of Randall Rc&d Ca-1-bh is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by John Nagel (local government). It impounds the Coffee Creek-tr near Niobrara Ne.

The dam stands 25 feet tall and stretches 290 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 37 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1967, 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 04/07/1981. That was over 45 years ago.

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Location

StateSouth Dakota
CountyBon Homme
Nearest CityNiobrara Ne
River/StreamCoffee Creek-tr
Coordinates42.84338, -98.08430

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length290 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage37 acre-ft
Max Storage37 acre-ft
Normal Storage5 acre-ft
Surface Area1 acres
Drainage Area1 sq mi
Max Discharge1,112 cfs

Ownership & Safety

PurposeGrade Stabilization
OwnerJohn Nagel
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection04/07/1981
Emergency Action PlanNot Required

Identifiers

NID IDSD02273
Federal IDSD02273
More InfoState Dam Safety Program