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Create reach polylines for sites along your river network

Screen shot showing what downstream reaches look like.
A screen shot showing what an upstream nearby network looks like

Create downstream nearby network

Create upstream nearby network

Create downstream reach

Create upstream reach

Create site centred reach

Using snapped sites as a starting point, RivEX can generate reach polylines in an upstream, downstream or both directions. Such polylines can be used to map zones of sedimentation upstream of a weir, impact zones downstream of a barrier, limits of movement for a species.  Reaches track along a single channel.

If you need to understand an impact for all possible routes then you can use the nearby network tools.

Available tools are:
5Km upstream nearby
network extracted
Downstream 1Km
reach extracted
More advice about reach tools is given in the manual.