Hey @Adam Franco  

Thanks for pointing that out.  I proposed that we should exclude the waterway link from the waterway length and end of waterway calculations since it's sole purpose is to have a route-able link for paddle routes.

https://github.com/amandasaurus/waterwaymap.org/issues/34

In the meantime, i reversed this link as anyway it seems to be the convention created by quincylvania and it's functionally identical. 

https://www.openstreetmap.org/changeset/146874546

cheers,
scarapella