"Diagonal Diverting" & "Dirt Blocking the Breach" in Church Dam Break DrainSim?

Obviously I love this map and I like to try out all kind of possibilities. In the last video I placed a dirt barrier straight in front of the Church, but this time I try a diagonal approach. At the last moment it also slipped in my mind what would happen if we tried to place a dirt wall in the breach itself while it actually happens.