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.
| Old River Lock Area | |||
| Survey title | Survey date | ||
| Sheet Name Stationing | XYZ | SHP | |
| Old River Lock Forebay | 10/22/2025 | ||
| OR_01_LFB 0+00 - 54+00 | XYZ | Shape | |
| Old River Lock Tailbay | 10/22/2025 | ||
| OR_02_LTB 70+00 - 179+50 | XYZ | Shape | |
| Three Rivers - Sh. 3 | 10/22/2025 | ||
| OR_03_3R1 179+50 - 258+00 | XYZ | Shape | |
| Three Rivers - Sh. 4 | 10/22/2025 | ||
| OR_04_3R2 258+00 - 369+85 | XYZ | Shape | |