Speas Dam

Speas Dam is an earth dam located in Sioux County, Nebraska, built in 1952. It carries a Low hazard potential classification and has a poor condition assessment.

About Speas Dam

The primary purpose of Speas 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 Lonnie D & Verona J Douthit (private). It impounds the Tr-little Cottonwood Creek near Whitney.

The dam stands 40 feet tall and stretches 255 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 22 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1952, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/06/2022.

At 40 feet, this dam is taller than 87% of dams nationwide.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountySioux
Nearest CityWhitney
River/StreamTr-little Cottonwood Creek
Coordinates42.76079, -103.57084

Physical Characteristics

Dam TypeEarth
NID Height40 ft
Dam Height37 ft
Dam Length255 ft
Year Completed1952 (74 years old)

Storage & Hydraulics

NID Storage22 acre-ft
Max Storage22 acre-ft
Normal Storage14 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge250 cfs

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerLonnie D & Verona J Douthit
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection04/06/2022
Emergency Action PlanNot Required

Identifiers

NID IDNE01114
Federal IDNE01114
More InfoState Dam Safety Program

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