Rowan Dam (18-34-17w)

Rowan Dam (18-34-17w) is an earth dam located in Keya Paha County, Nebraska, built in 1977. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection05/15/2019
Height42 ft
Built197749 years ago

Dam profile

NID height · 42 ft
42 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

42 ft tall and 392 ft long, taller than 88% 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 Rowan Dam (18-34-17w)

The primary purpose of Rowan Dam (18-34-17w) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Andrew F III & Sandra L Rowan (private). It impounds the Coon Creek near Brocksburg.

The dam stands 42 feet tall and stretches 392 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 388 acre-feet, and collects water from a drainage area of 4 square miles. 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. The most recent inspection on record was 05/15/2019.

At 42 feet, this dam is taller than 88% of dams nationwide.

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Location

StateNebraska
CountyKeya Paha
Nearest CityBrocksburg
River/StreamCoon Creek
Coordinates42.92468, -99.36819

Physical Characteristics

Dam TypeEarth
NID Height42 ft
Dam Height42 ft
Dam Length392 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage388 acre-ft
Max Storage388 acre-ft
Normal Storage220 acre-ft
Surface Area15 acres
Drainage Area4 sq mi
Max Discharge2,070 cfs

Ownership & Safety

PurposeIrrigation
OwnerAndrew F III & Sandra L Rowan
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection05/15/2019
Emergency Action PlanNot Required

Identifiers

NID IDNE01698
Federal IDNE01698
More InfoState Dam Safety Program