Survey data is referenced to Louisiana South State Plane Coordinates North American Datum 1983 with soundings referenced below Mean Low Gulf in U.S. Survey Feet.

Baton Rouge Harbor Area
   Survey title Survey date
       Sheet Name    Stationing PDF XYZ SHP
   Baton Rouge Harbor (Devil's Swamp) 09/14/2017
       BH_01_DEV    0+00 - 132+00 PDF XYZ Shape
   Port Allen Lock Forebay 10/05/2017
       LK_04_PAL    0+00 - 20+00 PDF XYZ Shape