This thread is for the development group at Bentley. For years I have been trying to find someone who will inlcude shear calculations for ditch linings in InRoads Storm and Sanitary. Currently I have to use the HYCHL program in HYDRAIN. The program uses HEC-15 to calculate the shear on linings (grass, riprap, mattresses). I'm inclusing a link so you can look at incorporating it into your own program
http://www.fhwa.dot.gov/engineering/hydraulics/pubs/05114/hec1501.cfm
The reason I bring this up is that in it's current state, the channel portion of S&S is a limited tool for analysis, and I am forced to iterate between MicroStation/InRoads and HYCHL.
PLEASE HELP!!!! Anyone else that has this problems, feel free to comment!!!