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.

Mermentau River
   Survey title Survey date
       Sheet Name    River Mile PDF XYZ SHP
   Bar - Sh. 1 07/12/2017
       MM_01_BAR    MM 1.2 to 2.5 PDF XYZ Shape
   Bar - Sh. 2 07/12/2017
       MM_02_BAR    MM 2.5 to 3.5 PDF XYZ Shape
   Bay - Sh. 3 04/26/2017
       MM_03_BAY    MM 4 to 5 PDF XYZ Shape
   Bay - Sh. 4 04/26/2017
       MM_04_BAY    MM 5 to 6.2 PDF XYZ Shape
   Lower - Sh. 5 04/26/2017
       MM_05_LWR    MM 7 to 8 PDF XYZ Shape
   Lower - Sh. 6 04/26/2017
       MM_06_LWR    MM 9 PDF XYZ Shape
   Lower - Sh. 7 10/25/2016
       MM_07_LWR    MM 10 to 11 PDF XYZ Shape
   Lower - Sh. 8 10/25/2016
       MM_08_LWR    MM 12 PDF XYZ Shape
   Lower - Sh. 9 10/26/2016
       MM_09_LWR    MM 13 PDF XYZ Shape
   Lower - Sh. 10 10/26/2016
       MM_10_LWR    MM 14 to 15 PDF XYZ Shape
   Lower - Sh. 11 10/26/2016
       MM_11_LWR    MM 15 to 16 PDF XYZ Shape
   Lower - Sh. 12 10/26/2016
       MM_12_LWR    MM 17 PDF XYZ Shape
   Lower - Sh. 13 10/26/2016
       MM_13_LWR    MM 18 to 19 PDF XYZ Shape
   Lower - Sh. 14 10/26/2016
       MM_14_LWR    MM 19 to 21 PDF XYZ Shape
   Lower - Sh. 15 10/26/2016
       MM_15_LWR    MM 22 to 23 PDF XYZ Shape
   Catfish Lock - Sh. 16 10/26/2016
       MM_16_CFL    MM 24 PDF XYZ Shape
   Grand Lake - Sh. 17 10/09/2014
       MM_17_GLK    MM 25 PDF XYZ Shape
   Grand Lake - Sh. 18 10/09/2014
       MM_18_GLK    MM 26 to 27 PDF XYZ Shape
   Grand Lake - Sh. 19 10/09/2014
       MM_19_GLK    MM 28 PDF XYZ Shape
   Grand Lake - Sh. 20 10/09/2014
       MM_20_GLK    MM 29 PDF XYZ Shape
   Grand Lake - Sh. 21 10/09/2014
       MM_21_GLK    MM 30 to 31 PDF XYZ Shape
   Upper - Sh. 22 10/09/2014
       MM_22_UPR    MM 31 to 32 PDF XYZ Shape
   Upper - Sh. 23 mm/dd/yyyy
       MM_23_UPR    MM 33 PDF XYZ Shape
   Upper - Sh. 24 mm/dd/yyyy
       MM_24_UPR    MM 34 PDF XYZ Shape
   Upper - Sh. 25 mm/dd/yyyy
       MM_25_UPR    MM 35 to 36 PDF XYZ Shape