The HydroCAD Menu is primarily designed for use with the
HydroCAD Stormwater Modeling software, but can be used without
it. Only two commands on the HydroCAD Menu are not found in
other locations within other Carlson menus; HydroNet Explorer and
HydroCAD. The HydroCAD command on the HydroCAD Menu simply
provides a way to start HydroCAD. The HydroNet Explorer is a
new "docked dialog" that opens on the left side of the drawing
screen, and is used to create and edit four types of components of
a hydrologic project; subcatchments, ponds, reaches, and
links.
Documentation on the Define Watershed Layers and Watershed Analysis commands is under the Watershed Menu topics.