Rosollia, thanks for the link to the editor.  I downloaded it for future use. 
 
Andy, yeah not having a dedicated backup was a big mistake.  I won't do THAT again.
 
John, yes I saved it, reopened that save & reset the map size. Thanks for the tip on the bridges.
 
Thanks for the help and suggestions.  
 
I just ended up starting over from scratch.  I built a generic open water base map to use in the future and saved that first.  I was hoping to convert all of the map edges to open water, but the build beach option only clears the left and right edges.  That should be good enough.