Alkek Lake No 2 Dam

Alkek Lake No 2 Dam is an earth dam located in Bandera County, Texas, built in 1940. It carries a Significant hazard potential classification.

Hazard potentialSignificantFailure could cause major damage
ConditionNot assessed
Emergency action planOn file
Last inspection03/22/2011
Height27 ft
Built194086 years ago

Dam profile

NID height · 27 ft
27 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

27 ft tall and 340 ft long, taller than 59% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Alkek Lake No 2 Dam

The primary purpose of Alkek Lake No 2 Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Charles Williams (private). It impounds the San Julian Creek near Bandera.

The dam stands 27 feet tall and stretches 340 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 192 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.

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. An emergency action plan is in place for this dam. The most recent inspection on record was 03/22/2011. That was over 15 years ago.

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Location

StateTexas
CountyBandera
Nearest CityBandera
River/StreamSan Julian Creek
Coordinates29.69578, -99.04587

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length340 ft
Year Completed1940 (86 years old)

Storage & Hydraulics

NID Storage192 acre-ft
Max Storage192 acre-ft
Normal Storage63 acre-ft
Surface Area11 acres
Drainage Area11 sq mi
Max Discharge10,744 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerCharles Williams
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot assessed
Last Inspection03/22/2011
Emergency Action PlanYes

Identifiers

NID IDTX02897
Federal IDTX02897
More InfoState Dam Safety Program