Lady Emma

Lady Emma is an earth dam located in Natrona County, Wyoming, built in 1917. It carries a Low hazard potential classification.

About Lady Emma

The primary purpose of Lady Emma is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Circle Bar Ranch, Attn: Lois Blasberg (private). It impounds the Brush Creek near Hyw 220.

The dam stands 23 feet tall and stretches 465 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 52 acre-feet. Completed in 1917, the structure is over a century 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 10/05/2021.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyNatrona
Nearest CityHyw 220
River/StreamBrush Creek
Coordinates42.77700, -107.35580

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length465 ft
Year Completed1917 (109 years old)

Storage & Hydraulics

NID Storage52 acre-ft
Max Storage52 acre-ft
Normal Storage32 acre-ft
Surface Area4 acres
Max Discharge906 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCIRCLE BAR RANCH, ATTN: LOIS BLASBERG
Owner TypePrivate
Hazard ClassificationLow
Last Inspection10/05/2021
Emergency Action PlanNot Required

Identifiers

NID IDWY01733
Federal IDWY01733
More InfoState Dam Safety Program

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