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.

Houma Navigation Canal
   Survey title Survey date
       Sheet Name    River mile PDF XYZ SHP
Bayou Lecarpe
   GIWW Intersection - Sh. 1 03/03/2017
       HN_20_LEC    Sta. 0+00 to 38+00 PDF XYZ Shape
   Lecarpe and Short Cut - Sh. 2 03/03/2017
       HN_21_LEC    Sta. 38+00 to 84+50 PDF XYZ Shape
   Short Cut - Sh. 3 03/03/2017
       HN_22_LEC    N/A PDF XYZ Shape
Houma Navigation Canal
   Lower - Sh. 1 01/10/2017
       HN_01_LWR    MM 36.5 to 35.5 PDF XYZ Shape
   Lower - Sh. 2 01/10/2017
       HN_02_LWR    MM 35.5 to 33.4 PDF XYZ Shape
   Lower - Sh. 3 01/10/2017
       HN_03_LWR    MM 33.4 to 31.0 PDF XYZ Shape
   Lower - Sh. 4 01/09/2017
       HN_04_LWR    MM 31.0 to 28.6 PDF XYZ Shape
   Lower - Sh. 5 01/09/2017
       HN_05_LWR    MM 28.6 to 26.1 PDF XYZ Shape
   Lower - Sh. 6 01/09/2017
       HN_06_LWR    MM 26.1 to 23.6 PDF XYZ Shape
   Lower - Sh. 7 01/09/2017
       HN_07_LWR    MM 23.6 to 21.3 PDF XYZ Shape
   Lower - Sh. 8 01/09/2017
       HN_08_LWR    MM 21.3 to 19.3 PDF XYZ Shape
   Lower - Sh. 9 01/10/2017
       HN_09_LWR    MM 19.3 to 17.0 PDF XYZ Shape
   Lower - Sh. 10 01/10/2017
       HN_10_LWR    MM 17.0 to 14.5 PDF XYZ Shape
   Lower - Sh. 11 03/17/2017
       HN_11_LWR    MM 14.5 to 12.2 PDF XYZ Shape
   Bay - Sh. 12 06/28/2017
       HN_12_BAY    MM 12.2 to10.0 PDF XYZ Shape
   Bay - Sh. 13 06/28/2017
       HN_13_BAY    MM 10.0 to 7.7 PDF XYZ Shape
   Bay - Sh. 14 06/28/2017
       HN_14_BAY    MM 7.7 to 5.3 PDF XYZ Shape
   Bay - Sh. 15 06/28/2017
       HN_15_BAY    MM 5.3 to 3.0 PDF XYZ Shape
   Bay - Sh. 16 07/05/2017
       HN_16_BAY    MM 3.0 to 0.7 PDF XYZ Shape
   Bar - Sh. 17 07/05/2017
       HN_17_BAR    MM 0.7 to (-1.5) PDF XYZ Shape
   Bar - Sh. 18 07/05/2017
       HN_18_BAR    MM (-1.5) to (-3.8) PDF XYZ Shape
   Bar - Sh. 19 06/27/2017
       HN_19_BAR    MM (-3.8) to (-6.0) PDF XYZ Shape