Sanderson Canyon Ws Scs Site 8 Dam

Sanderson Canyon Ws Scs Site 8 Dam is an earth dam located in Terrell County, Texas, built in 1978. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Sanderson Canyon Ws Scs Site 8 Dam

The primary purpose of Sanderson Canyon 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 Big Bend Swcd;brewster County;pecos County;terrell County;trans Pecos Swcd (local government). It impounds the Tr-threemile Draw near Sanderson.

The dam stands 48 feet tall and stretches 2,363 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 1,738 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1978, the structure is 48 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 01/21/2020.

At 48 feet, this dam is taller than 92% 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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyTerrell
Nearest CitySanderson
River/StreamTr-threemile Draw
Coordinates30.21176, -102.42555

Physical Characteristics

Dam TypeEarth
NID Height48 ft
Dam Height48 ft
Dam Length2,363 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage1,738 acre-ft
Max Storage1,738 acre-ft
Normal Storage79 acre-ft
Surface Area22 acres
Drainage Area3 sq mi
Max Discharge23,658 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerBIG BEND SWCD;BREWSTER COUNTY;PECOS COUNTY;TERRELL COUNTY;TRANS PECOS SWCD
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection01/21/2020
Emergency Action PlanYes

Identifiers

NID IDTX04589
Federal IDTX04589
More InfoState Dam Safety Program

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