Applied Shear Stress

Vegetation Dissipated Shear Stress

Product Dissipated Shear Stress

Maximum Permissible Soil Shear Stress

CFveg

CFprodFS

CFveg and CFprod are Combined to Compute CFTRM

Tau-s

Tau-lTau-p

Q / b / z / So

Manning’s n Tau-a

FS

Retardance Class

Sod or BuchManning’s n

Coverage

Tau-pFS

Q / b / z / So

Tau-s

Manning’s n

Tau