Abstract: The Mississippi River Southwest Hydrographic Surveys are compiled in order to monitor and maintain Mississippi River Channel conditions at South and Southwest Passes ans Pass A Loutre.
Purpose: The purpose of the Mississippi River Southwest Pass Hydrographic Surveys are to provide a current survey and map of the Mississippi River for the purpose of recording changes in channel conditions, secondarily as an aid to navigation, and to be used as an engineering and planning tool for future Flood Control, Navigation, and Hurricane Protection projects.

Progress: Complete
Update Frequency: Daily.

Theme Keywords: none, Boundaries, Hydrography
Place Keywords: Mississippi River, New Orleans, Southwest Pass, South Pass, Pass A Loutre

Access Constraints: None.
Usage Constraints: This survey information is accurate as of the date of publication. Hydrographic survey data is subject to change rapidly due to several factors including but not limited to dredging activity and natural shoaling scouring processes. The U. S. Army Corps of Engineers accepts no responsibility for changes in the hydrographical conditions which develop after the date of publication. This information is intended for the internal use of the U. S. Army Corps of Engineers and it is being provided for external use as a public service. This agency accepts no responsibility for errors or omissions contained in this data. The accuracy of this data is therefore not guaranteed, and prudent mariners should not rely solely upon it.