Mallory Tank

Mallory Tank is an earth dam located in Apache County, Arizona, built in 1918. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection10/16/2009
Height13 ft
Built1918108 years ago

Dam profile

NID height · 13 ft
13 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

13 ft tall and 296 ft long. 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 Mallory Tank

The primary purpose of Mallory Tank 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 Arizona State Land Department;norman Brown (private). It impounds the Mallory Draw near No Data.

The dam stands 13 feet tall and stretches 296 feet across, creates a reservoir covering 27 acres, and has a storage capacity of 113 acre-feet. Completed in 1918, 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 10/16/2009. That was over 16 years ago.

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Location

StateArizona
CountyApache
Nearest CityNo Data
River/StreamMallory Draw
Coordinates34.29167, -109.50278

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Height13 ft
Dam Length296 ft
Year Completed1918 (108 years old)

Storage & Hydraulics

NID Storage113 acre-ft
Normal Storage113 acre-ft
Surface Area27 acres
Spillway TypeNone

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerArizona State Land Department;norman Brown
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection10/16/2009
Emergency Action PlanNot Required

Identifiers

NID IDAZ00291
Federal IDAZ00291
More InfoState Dam Safety Program