Thompson Lake Dam

Thompson Lake Dam is an earth dam located in McLennan County, Texas, built in 1975. It carries a Low hazard potential classification.

About Thompson Lake Dam

The primary purpose of Thompson Lake 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 Thompson Properties (private). It impounds the Tr-north Bosque River.

The dam stands 31 feet tall and stretches 528 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 171 acre-feet. Completed in 1975, 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateTexas
CountyMcLennan
River/StreamTr-north Bosque River
Coordinates31.65877, -97.35983

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Dam Length528 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage171 acre-ft
Max Storage171 acre-ft
Normal Storage132 acre-ft
Surface Area12 acres
Spillway TypeNone

Ownership & Safety

PurposeWater Supply
OwnerTHOMPSON PROPERTIES
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDTX05085
Federal IDTX05085
More InfoState Dam Safety Program

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