Dry Devils And Lowrey Ws Scs Site 12 Dam

Dry Devils And Lowrey Ws Scs Site 12 Dam is an earth dam located in Sutton County, Texas, built in 1959. It carries a High hazard potential classification.

About Dry Devils And Lowrey Ws Scs Site 12 Dam

The primary purpose of Dry Devils And Lowrey Ws Scs Site 12 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Edwards Plateau Swcd;sutton County (local government). It impounds the Tr-lowrey Draw near Sonora.

The dam stands 37 feet tall and stretches 1,475 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 2,076 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1959, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 11/13/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

At 37 feet, this dam is taller than 84% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateTexas
CountySutton
Nearest CitySonora
River/StreamTr-lowrey Draw
Coordinates30.59265, -100.61363

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length1,475 ft
Year Completed1959 (67 years old)

Storage & Hydraulics

NID Storage2,076 acre-ft
Max Storage2,076 acre-ft
Normal Storage68 acre-ft
Surface Area20 acres
Drainage Area4 sq mi
Max Discharge2,076 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerEDWARDS PLATEAU SWCD;SUTTON COUNTY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection11/13/2018
Emergency Action PlanYes

Identifiers

NID IDTX02307
Federal IDTX02307
More InfoState Dam Safety Program

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