Once the HY8 data have been entered you must save the input file using the Save input file button in the main dialog. You will not have the opportunity to specify a directory since the current implementation of HY8 in WMS requires that the input file be saved in the same directory where the HY8 executables reside. Once WMS is installed the HY8 directory will be created in the main WMS directory (the same directory where the WMS executable resides).
The input file name should be saved with a .inp extension. If you do not save the input file prior to computing the culvert hydraulics you will be prompted to do so. You may also read in an existing input file using the file browser button found near the top of the main dialog.
Related Topics:
Culvert Calculator with HY8