presTitle=Mark Weinhold: Culvert Substrate Design&presSubTitle=&labelList=Culvert Substrate Design||Analysis Process||Analysis Process Cont...||Steady Uniform Flow||Substrate Design Options||Reference Reach||Typical Shear Stress Approach||Costa (1983)||Adapted from Costa (1983)||Bathurst (1987)||Critical Unit Discharge||Conventional Riprap Sizing Techniques||Bed Material Distribution||Construction Gradation Curve||Summary&valueList=1||16||42||57||141||200||225||295||340||404||426||479||518||560||581&credittext=Production By Mike Furniss and Jeff Guntle