Coastal National Elevation Database (CoNED)

The USGS CoNED Project integrates disparate light detection and ranging (LiDAR) and bathymetric data sources into a common database aligned both vertically and horizontally to a common reference system.  The resolution on land is much better than in the water.

Limited coverage, but includes Chesapeake Bay

The files are very big, so consider carefully the areas you select.  You will need GDAL to use them.

Viewer and download:

Last revision 3/17/2021