![]() Using the Sample line command, create polylines that will represent the cross-sections along the stream alignment. I would recommend to create the alignment starting from downstream to upstream.Ģ. *Tip: Since the current version of HEC-RAS is still having some issues with regards to importing geo files from Civil3D. ![]() From Civil3D, create an alignment along the river or stream adjacent to the land or development being analyze.
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