Hi all, This proposal is now available for voting https://wiki.openstreetmap.org/wiki/Proposed_features/Hydropower_water_supplies
This picture summarizes the topic a bit https://wiki.openstreetmap.org/wiki/File:Waterway_flows.png Main goal is to involve pressurized waterways in the global hydrographic graph and ease access of water data with the use of existing waterway key. Waterway=* use to be used about free flowing features, but actually isn't restricted to. Despite its title, this proposal deals about a much more wide family of pressurized waterways, including natural siphons for speleologists. Thanks in advance for your time, all the best François
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