Lake San Tana Dam

Lake San Tana Dam is an earth dam located in Coleman County, Texas, built in 1923. It carries a Low hazard potential classification.

About Lake San Tana Dam

The primary purpose of Lake San Tana Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Santa Anna (local government). It impounds the Tr-mud Creek.

The dam stands 41 feet tall and stretches 450 feet across, and has a maximum storage capacity of 1,063 acre-feet. Completed in 1923, 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 10/02/1984. That was over 41 years ago.

At 41 feet, this dam is taller than 88% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateTexas
CountyColeman
River/StreamTr-mud Creek
Coordinates31.77092, -99.28720

Physical Characteristics

Dam TypeEarth
NID Height41 ft
Dam Height41 ft
Dam Length450 ft
Year Completed1923 (103 years old)

Storage & Hydraulics

NID Storage1,063 acre-ft
Max Storage1,063 acre-ft
Normal Storage703 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCITY OF SANTA ANNA
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection10/02/1984
Emergency Action PlanNot Required

Identifiers

NID IDTX02221
Federal IDTX02221
More InfoState Dam Safety Program

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