FESWMS is a hydrodynamic modeling code that supports both super and subcritical flow analyses, including area wetting and drying. It has been developed under funding by the U.S. Federal Highways Administration (FHWA) by Dr. Dave Froelich PE. FESWMS is specifically suited for modeling regions involving flow control structures, such as are encountered at the intersection of roadways and waterways. Specifically, the FESWMS model allows the user to include weirs, culverts, drop inlets, and bridge piers into a standard 2D finite element model. SMS provides graphical tools for defining these structures and controlling analysis using the FESWMS model. Both pre- and post-processing capabilities are included in the interface.