Sanderson Canyon Ws Scs Site 1 Dam

Sanderson Canyon Ws Scs Site 1 Dam is an earth dam located in Brewster County, Texas, built in 1986. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Sanderson Canyon Ws Scs Site 1 Dam

The primary purpose of Sanderson Canyon Ws Scs Site 1 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;rio Grande-pecos River Swcd;terrell County;trans Pecos Swcd (local government). It impounds the Unnamed Tributary near Sanderson.

The dam stands 68 feet tall and stretches 3,120 feet across, creates a reservoir covering 41 acres, has a maximum storage capacity of 6,109 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 1986, the structure is 40 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. 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 01/23/2020.

At 68 feet, this dam is taller than 96% of all dams in the United States.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyBrewster
Nearest CitySanderson
River/StreamUnnamed Tributary
Coordinates30.13173, -102.73019

Physical Characteristics

Dam TypeEarth
NID Height68 ft
Dam Height50 ft
Dam Length3,120 ft
Year Completed1986 (40 years old)

Storage & Hydraulics

NID Storage6,109 acre-ft
Max Storage6,109 acre-ft
Normal Storage198 acre-ft
Surface Area41 acres
Drainage Area19 sq mi
Max Discharge21,751 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerBIG BEND SWCD;BREWSTER COUNTY;PECOS COUNTY;RIO GRANDE-PECOS RIVER SWCD;TERRELL COUNTY;TRANS PECOS SWCD
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection01/23/2020
Emergency Action PlanYes

Identifiers

NID IDTX06604
Federal IDTX06604
More InfoState Dam Safety Program

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