Civil Engineering hydraulics design calculation software - covers calculations for hydrology, open channels, stormwater run-off, culverts, gravity sewer (sanitary and storm sewer), water pipeline design, sewer force mains, unit conversions. Supports 32 bit,( x86) and 64 bit (x64) architecture for Windows Operating Systems. Program has built in reference manuals, and coefficient tables for a stand-alone design application. Can open multiple windows to perform multiple calculations at one time and solve complex civil engineering design problems.