don't forget to make allowance for water from within the wall to egress or be safely stored during flooding. Remember the joke about the brick wall around new zealand and the aussie says to the genie: 'now fill it with water'...
Also you may have an issue with making flooding conditions worse...
YAR! designing a debris deflector structure for a very steep stream. bed grades along the base of the deflector in the order of 15%. It is a constant flow stream and I am concerned about scour of a concrete slab proposed for the creek bed. I'm fishing for advice on permissible velocities vs...
