TEXAS RESERVOIR REPORT

Last Updated: December 20, 2025

Texas has over 100 major reservoirs and dams, providing water for irrigation, municipal use, and recreation. Some of the largest reservoirs in the state include Lake Texoma, Lake Ray Roberts, and Lake Lewisville. These reservoirs are primarily fed by the Red River and its tributaries, as well as the Trinity River. Snowpack and mountains are not major factors in Texas' hydrology, as the state is mostly flat and lacks significant mountain ranges. However, drought conditions can have a major impact on water levels in reservoirs. Texas experienced a severe drought from 2010-2015, which led to record low levels in many reservoirs. Seasonal trends also play a role in Texas' hydrology, with most rainfall occurring in the spring and fall. The summer months are typically drier, which can lead to decreased water levels in reservoirs. However, hurricanes and tropical storms can bring heavy rainfall and flooding in late summer and early fall. Overall, reservoirs and dams play a critical role in Texas' water supply, but are vulnerable to drought and seasonal fluctuations.

Texas has over 100 major reservoirs and dams, providing water for irrigation, municipal use, and recreation. Some of the largest reservoirs in the state include Lake Texoma, Lake Ray Roberts, and Lake Lewisville. These reservoirs are primarily fed by the Red River and its tributaries, as well as the Trinity River.

Snowpack and mountains are not major factors in Texas' hydrology, as the state is mostly flat and lacks significant mountain ranges. However, drought conditions can have a major impact on water levels in reservoirs. Texas experienced a severe drought from 2010-2015, which led to record low levels in many reservoirs.

Seasonal trends also play a role in Texas' hydrology, with most rainfall occurring in the spring and fall. The summer months are typically drier, which can lead to decreased water levels in reservoirs. However, hurricanes and tropical storms can bring heavy rainfall and flooding in late summer and early fall.

Overall, reservoirs and dams play a critical role in Texas' water supply, but are vulnerable to drought and seasonal fluctuations.