Rip Rap Gradation

One of the field offices in the North Area was asking me to explain rock rip rap and this video is my best, most simple explanation of rock gradation. I hope it helps you all...

[@biniyammulugeta587]

How yo determine riprap rock size gradation D50?

[@golagha1959]

do you also have design guidelines for riprap?

[@QudratillaUlashov]

Please show how to calculate reservoir bank erosion in HEC-RAS