Lake Ann Dam

Lake Ann Dam is an earth dam located in Montgomery County, Texas, built in 1969. It carries a Low hazard potential classification.

About Lake Ann Dam

The primary purpose of Lake Ann Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by San Jacinto Girl Scout Council (private). It impounds the Tr-weirs Creek.

The dam stands 16 feet tall and stretches 857 feet across, and has a maximum storage capacity of 60 acre-feet. Completed in 1969, 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
CountyMontgomery
River/StreamTr-weirs Creek
Coordinates30.45118, -95.50227

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length857 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage28 acre-ft
Spillway TypeNone

Ownership & Safety

PurposeRecreation
OwnerSAN JACINTO GIRL SCOUT COUNCIL
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDTX05264
Federal IDTX05264
More InfoState Dam Safety Program

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