RiverCAD® is a sophisticated river modeling software that completely supports HEC-RAS and HEC-2 within AutoCAD or its own stand-alone CAD environment. RiverCAD makes it even easier to compute water surface profiles for modeling bridges, culverts, spillways, levees, bridge scour, floodway delineation, floodplain reclamation, stream diversions, channel improvements, and split flows. RiverCAD reads and writes data from the latest versions of HEC-RAS and HEC-2.