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.

Bayou Lafourche
   Survey title Survey date
       Sheet Name    River mile PDF XYZ SHP
   Jetties/Bar - Sh. 1 02/09/2022
       LF_01_BAR    MM 0.0 to (-2.0) PDF XYZ Shape
   Port Fourchon - Sh. 2 11/10/2021
       LF_02_LWR    MM 2.5 to 0.0 PDF XYZ Shape
   Port Fourchon - Sh. 3 11/10/2021
       LF_03_LWR    MM 4.5 to 2.5 PDF XYZ Shape
   P.F. to Leesville - Sh. 4 09/04/2021
       LF_04_LWR    MM 7.0 to 4.5 PDF XYZ Shape
   P.F. to Leesville - Sh. 5 09/04/2021
       LF_05_LWR    MM 9.0 to 7.0 PDF XYZ Shape
   P.F. to Leesville - Sh. 6 09/04/2021
       LF_06_LWR    MM 11.5 to 9.0 PDF XYZ Shape
   Leesville - Sh. 7 09/04/2021
       LF_07_LWR    MM 13.0 to 11.5 PDF XYZ Shape
   Leesville to Golden Meadow - Sh. 8 09/04/2021
       LF_08_LWR    MM 15.0 to 13.0 PDF XYZ Shape
   Leesville to Golden Meadow - Sh. 9 09/04/2021
       LF_09_LWR    MM 17.0 to 15.0 PDF XYZ Shape
   Leesville to Golden Meadow - Sh. 10 09/04/2021
       LF_10_LWR    MM 19.0 to 17.0 PDF XYZ Shape
   Golden Meadow F.G. - Sh. 11 09/04/2021
       LF_11_LWR    MM 21.0 to 19.0 PDF XYZ Shape
   Golden Meadow - Sh. 12 09/04/2021
       LF_12_LWR    MM 23.0 to 21.0 PDF XYZ Shape
   Larose to Lockport - Sh. 20 10/03/2021
       LF_20_LWR    MM 39.0 to 37.0 PDF XYZ Shape
   Larose to Lockport - Sh. 21 10/03/2021
       LF_21_UPR    MM 41.0 to 39.0 PDF XYZ Shape
   Larose to Lockport - Sh. 22 10/03/2021
       LF_22_UPR    MM 43.0 to 41.0 PDF XYZ Shape
   Larose to Lockport - Sh. 23 10/03/2021
       LF_23_UPR    MM 45.0 to 43.0 PDF XYZ Shape
   Larose to Lockport - Sh. 24 10/03/2021
       LF_24_UPR    MM 47.0 to 45.0 PDF XYZ Shape