The 16.0 version of RiverCAD is provided as a free download on our website. The actual developer of the program is BOSS International, Inc. RiverCAD lies within Photo & Graphics Tools, more precisely 3D Design. Our antivirus scan shows that this download is virus free.
From the developer:
RiverCAD ® is a sophisticated river modeling software that completely supports HEC-RAS and HEC-2 within AutoCAD.
You may want to check out more software, such as 3D Studio VIZ R3, P-CAD 2004 Viewer or Win4D Advance, which might be related to RiverCAD.