Flag Lake Levee

Flag Lake Levee is an earth dam located in Brazoria County, Texas, built in 1953. It carries a Low hazard potential classification.

About Flag Lake Levee

The primary purpose of Flag Lake Levee is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bar X Development (private). It impounds the Tr-mill Creek.

The dam stands 8 feet tall and stretches 11,068 feet across, and has a maximum storage capacity of 530 acre-feet. Completed in 1953, 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
CountyBrazoria
River/StreamTr-mill Creek
Coordinates29.13455, -95.54489

Physical Characteristics

Dam TypeEarth
NID Height8 ft
Dam Height8 ft
Dam Length11,068 ft
Year Completed1953 (73 years old)

Storage & Hydraulics

NID Storage530 acre-ft
Max Storage530 acre-ft
Normal Storage380 acre-ft
Spillway TypeNone

Ownership & Safety

PurposeIrrigation
OwnerBAR X DEVELOPMENT
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDTX06298
Federal IDTX06298
More InfoState Dam Safety Program

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