LOUISIANA RESERVOIR REPORT

Last Updated: December 5, 2025

Louisiana is home to several major reservoirs, including Toledo Bend Reservoir, Catahoula Lake, and Lake Pontchartrain. Toledo Bend Reservoir is one of the largest man-made reservoirs in the country and is fed by the Sabine River. Catahoula Lake is a natural lake that is fed by several creeks and streams, while Lake Pontchartrain is a brackish estuary that is fed by several rivers, including the Mississippi River. Due to its low elevation and flat topography, Louisiana does not receive significant snowfall or have any relevant mountains that contribute to its reservoirs. However, the state experiences a humid subtropical climate, with abundant rainfall throughout the year. In recent years, Louisiana has experienced several record-breaking floods, particularly along the Mississippi River and its tributaries. Drought conditions have also been an issue in certain parts of the state during the summer and fall months. Overall, the hydrology of Louisiana is heavily influenced by its proximity to the Gulf of Mexico and the various rivers and streams that flow through the state.

Louisiana is home to several major reservoirs, including Toledo Bend Reservoir, Catahoula Lake, and Lake Pontchartrain. Toledo Bend Reservoir is one of the largest man-made reservoirs in the country and is fed by the Sabine River. Catahoula Lake is a natural lake that is fed by several creeks and streams, while Lake Pontchartrain is a brackish estuary that is fed by several rivers, including the Mississippi River.

Due to its low elevation and flat topography, Louisiana does not receive significant snowfall or have any relevant mountains that contribute to its reservoirs. However, the state experiences a humid subtropical climate, with abundant rainfall throughout the year.

In recent years, Louisiana has experienced several record-breaking floods, particularly along the Mississippi River and its tributaries. Drought conditions have also been an issue in certain parts of the state during the summer and fall months. Overall, the hydrology of Louisiana is heavily influenced by its proximity to the Gulf of Mexico and the various rivers and streams that flow through the state.