Data App: Track Texas Reservoir Levels

Texas endured the most intense drought in recorded state history in 2011, and it has yet to bounce back. Water levels at a number of reservoirs remain significantly low, particularly in West Texas, which is drier than East Texas.

Using data collected from the Texas Water Development Board's reservoir status tracker, we have built a map that visualizes the current state of Texas’ reservoirs. The map auto-updates daily with fresh data. Each icon on the map represents an individual reservoir, color-coded based on how full it is currently.

Hover over a marker to see the name of the reservoir, or click on the marker to see its total capacity and how much it currently holds.

Editor's Note: The location of a reservoir marker on the map is determined by the location of the device that measures that reservoir’s water levels. Elephant Butte Lake is included on this map because although it is in New Mexico, it supplies some of El Paso’s water.

Hover over a reservoir's marker to see details

Current Reservoir Status
(Percent Full)
  •   0 to 25%
  •   25 to 50%
  •   50 to 75%
  •   75 to 100%
  •   Flood Control *
Acre-Foot - An acre-foot is a unit of volume used to reference to large water resources. It is defined by the volume of one acre of surface area to a depth of one foot. One acre-foot of water is equal to 325,851 gallons, or about the annual consumption of two to three Texas households.
* Flood Control Reservoir - These reservoirs are intended to be used as flood control, and their normal condition is empty except during flood events.

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