Tmpa Gibbons Creek Mine Dam Sp-64

Tmpa Gibbons Creek Mine Dam Sp-64 is an earth dam located in Grimes County, Texas, built in 1995. It carries a Low hazard potential classification.

About Tmpa Gibbons Creek Mine Dam Sp-64

The primary purpose of Tmpa Gibbons Creek Mine Dam Sp-64 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Texas Municipal Power Agency (local government). It impounds the Tr-sulphur Creek.

The dam stands 21 feet tall and stretches 1,200 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 68 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1995, the structure is 31 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateTexas
CountyGrimes
River/StreamTr-sulphur Creek
Coordinates30.62361, -96.02667

Physical Characteristics

Dam TypeEarth
NID Height21 ft
Dam Height21 ft
Dam Length1,200 ft
Year Completed1995 (31 years old)

Storage & Hydraulics

NID Storage68 acre-ft
Max Storage68 acre-ft
Normal Storage5 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Spillway TypeNone

Ownership & Safety

PurposeTailings
OwnerTEXAS MUNICIPAL POWER AGENCY
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDTX07044
Federal IDTX07044
More InfoState Dam Safety Program

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