This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Please recognize the U.S. Geological Survey (USGS) and the Southwest Washington Coastal Erosion Study (SWWCES) as the source of this information.
Data were reprojected to Washington Stateplane South-NAD83, FIPS 4602 and MLLW meters.
DATA SET SPECIFIC INFORMATION:
The vertical datum relative to NAVD88 is: -0.16 meters The conversion applied to charted depths: +0.19 meters
All original soundings obtained from USACE are included in this data set. Vertical adjustments were applied to all NAVD88 converted depths as discussed in Buijsman, et al. 2002