Big Lake Los Manzanos Dam

Big Lake Los Manzanos Dam is an earth dam located in Kerr County, Texas, built in 1968. It carries a Significant hazard potential classification.

About Big Lake Los Manzanos Dam

The primary purpose of Big Lake Los Manzanos 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 Fronie Shelton (private). It impounds the Johnson Creek near Ingram.

The dam stands 13 feet tall and stretches 300 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 189 acre-feet. Completed in 1968, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 04/13/2009. That was over 16 years ago.

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Significant HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateTexas
CountyKerr
Nearest CityIngram
River/StreamJohnson Creek
Coordinates30.15730, -99.35375

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Height13 ft
Dam Length300 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage189 acre-ft
Max Storage189 acre-ft
Normal Storage112 acre-ft
Surface Area13 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerFRONIE SHELTON
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection04/13/2009
Emergency Action PlanNot Required

Identifiers

NID IDTX04863
Federal IDTX04863
More InfoState Dam Safety Program

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