Encroachments - Specify Left and Let HEC-RAS Calulate Right

[woodmatt]

I am doing a floodway analysis and i was wondering if there was any way to specify either the left or right encroachment and to let ras calculate the opposite encroachment using method 4 (specify water level increase).

I have run method 4 on all of my cross-sections using equal conveyance reduction and propotional conveyance reduction and am not happy with the floodway it produces.

For example:
I have a section where the channel almost runs up against the left valley wall. The method 4 encroachment specifies a large encroachment along the right floodplain but not all the way to the channel and a small encroachment on the left side. I would like to force hec ras to continue encroaching on the right floodplain before encroaching on the left.

Thanks

[MattZ]

I hate to be the bearer of bad news, but I think you are going to be stuck with working with Method 1 and supplying the encroachment stations yourself. It certainly will be tedious, but you can get the floodway exactly where you want it.