San Diego-rosita Cks Ws Scs Site 7 Dam

San Diego-rosita Cks Ws Scs Site 7 Dam is an earth dam located in Duval County, Texas, built in 1964. It carries a High hazard potential classification and has a fair condition assessment.

About San Diego-rosita Cks Ws Scs Site 7 Dam

The primary purpose of San Diego-rosita Cks Ws Scs Site 7 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 Agua Poquita Swcd;duval County (local government). It impounds the Tarancahuas Creek near San Diego.

The dam stands 35 feet tall and stretches 4,020 feet across, creates a reservoir covering 63 acres, has a maximum storage capacity of 9,007 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1964, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 02/16/2022.

At 35 feet, this dam is taller than 82% 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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyDuval
Nearest CitySan Diego
River/StreamTarancahuas Creek
Coordinates27.85315, -98.51581

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length4,020 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage9,007 acre-ft
Max Storage9,007 acre-ft
Normal Storage269 acre-ft
Surface Area63 acres
Drainage Area22 sq mi
Max Discharge14,393 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerAGUA POQUITA SWCD;DUVAL COUNTY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection02/16/2022
Emergency Action PlanYes

Identifiers

NID IDTX01921
Federal IDTX01921
More InfoState Dam Safety Program

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