Hi,
I reviewed the model and the problem is that all the pipes "Inlet Offset" and "Outlet Offset" are actually defined as "Inlet Elevation" and "Outlet Elevation". Please draw the profile plot and you will be able to see the problem.
So, for example Pipe # L17, has "Inlet Offset" and "Outlet Offset" defined as 805.33 ft and 801.190 ft. They should be 0 ft and 0 ft respectively.
Thanks,
Debajit Basu Ray
debajit@bossintl.com