I am trying to run a steady flow analysis and I have been getting an error which says “Left Bank Manning’s n not set” but when I go through the cross sections it says have this problem and, indeed, all my cross sections, I have set manning’s values on all of them. have added a bridge and culverts along this road. If anyone can help, I appreciate it.
This issue wasted my time a lot. This is how I get rid of that. Go to Mapper-> Geometry->cross section drop drown select Edge Line-> Right click- Start edit->again right click –> Compute Edge lines at XS limits
This worked for me. Just sharing if some one search for a solution for this issue ( even though the Becky has posted this in 2018)