Waterway Opening Rating Table

The waterway opening data is provided by the user as a set of elevation vs structure waterway area pairs in ascending order. This program can be used to model either culverts or bridges. The first elevation must be the invert elevation of the structure opening and the last elevation must be the crown elevation or low chord of the structure opening. The program provides a tool to generate this data set in a format similar to the HEC-RAS program. That is, the user inputs the downstream stream cross section data together with the high chord and low chord elevation of the bridge opening. Input the low chord elevation to a value below that of the stream cross section to block the flow through the area (embankments, abutments and piers). If the user is working with a HEC-RAS program, this information can be imported directly from the HEC-RAS project file. TIDEROUT2 will use this information to generate both the waterway opening rating table and the roadway profile.