Dry Devils And Lowrey Ws Scs Site 8 Dam

Dry Devils And Lowrey Ws Scs Site 8 Dam is an earth dam located in Sutton County, Texas, built in 1960. It carries a High hazard potential classification.

About Dry Devils And Lowrey Ws Scs Site 8 Dam

The primary purpose of Dry Devils And Lowrey Ws Scs Site 8 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-dry Devils River near Sonora.

The dam stands 34 feet tall and stretches 1,674 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 3,981 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1960, 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 11/14/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

At 34 feet, this dam is taller than 80% 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-dry Devils River
Coordinates30.60005, -100.65068

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length1,674 ft
Year Completed1960 (66 years old)

Storage & Hydraulics

NID Storage3,981 acre-ft
Max Storage3,981 acre-ft
Normal Storage151 acre-ft
Surface Area33 acres
Drainage Area7 sq mi
Max Discharge11,831 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerEDWARDS PLATEAU SWCD;SUTTON COUNTY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection11/14/2018
Emergency Action PlanYes

Identifiers

NID IDTX02309
Federal IDTX02309
More InfoState Dam Safety Program

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