Allison Dam

Allison Dam is a gravity dam located in Concho County, Texas, built in 1918. It carries a Low hazard potential classification.

About Allison Dam

The primary purpose of Allison Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mc Vinson (private). It impounds the Concho River near Paint Rock.

The dam stands 10 feet tall and stretches 216 feet across, and has a maximum storage capacity of 450 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 05/28/1976. That was over 49 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateTexas
CountyConcho
Nearest CityPaint Rock
River/StreamConcho River
Coordinates31.51717, -99.97836

Physical Characteristics

Dam TypeGravity
NID Height10 ft
Dam Height10 ft
Dam Length216 ft
Year Completed1918 (108 years old)

Storage & Hydraulics

NID Storage450 acre-ft
Max Storage450 acre-ft
Normal Storage450 acre-ft
Spillway TypeNone

Ownership & Safety

PurposeIrrigation
OwnerMC VINSON
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection05/28/1976
Emergency Action PlanNot Required

Identifiers

NID IDTX01652
Federal IDTX01652
More InfoState Dam Safety Program

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