Feature Summary

The interface of the program allows the user to easily input and save the data, get help, view and print out the results both in a text form and in a graphic form. It also includes a hydrograph generation unit to generate a hydrograph based on TR-20 single area model. The bridge opening data and roadway data can be generated in a similar input form as the HECRAS program. The program also provides the capability to import the bridge opening and roadway profile from the existing HECRAS project file.

The output of the program is designed to allow the user to check the results by hand. It provides all the data required to check the continuity equation at any time step in the process. The program also provides tools to interpolate the basin area and the bridge opening area at given elevation. The user can reverse the process by providing either the basin area or the bridge opening area to obtain the water elevation.

The graphical portion of the program allows the user to draw the basin and bridge opening rating curves, the riverine and tidal hydrographs and also the headwater and tailwater elevations as a function of time. These graphs enable the user to visualize the entire tide routing process, including the effects of riverine flow, storage, downstream tide cycle and structure waterway area on the flow through the bridge.