[Talk-us] Best practices for coastline to Inland Bay / River transition

[Christoph Hormann]

On Thursday 07 January 2016, Elliott Plack wrote:
>
> What are the current accepts best practices for determining where to
> "cut off" the coastline and to begin a river or bay type feature? The
> wiki seems to be in disagreement about this, and I've read chatter
> about switching to ocean polygons.
>
> Let's take the mighty Potomac River. It is tidal from the mouth to
> points upstream from Washinton, DC, yet at some point it switches to
> waterway areas and relations.

See:

http://wiki.openstreetmap.org/wiki/Proposed_Features/Coastline-River_transit_placement

Current placement at the Potomac is completely fine - i would see room 
for moving it both downstream to near the bridge north of Colonial 
Beach or upstream to Alexandria but no particular need for either.

I would strongly suggest keeping Chesapeake Bay mapped as coastline.  
While this is very shallow ecologically it has largely maritime 
characteristics.

-- 
Christoph Hormann
http://www.imagico.de/