Monopile Scour Depth Calculator

Coastal & Geotechnical: Calculate equilibrium seabed scour depth ($S_{eq}$) under waves/currents and size rock armor rip-rap protection ($D_{50}$).

Monopile Diameter $D$ (m):

Seabed Current Speed $U_c$ (m/s):

Near-Bed Wave Orbital Vel $U_m$ (m/s):

Wave Period $T$ (s):

Rock Armor Density $ ho_s$ ($ ext{kg/m}^3$):

Shields Parameter $ heta_{cr}$:

Equilibrium Scour ($S_{eq}$)

-- m

Relative Scour ($S/D$)

Median Rock ($D_{50}$)

-- m

Total Rock Armor Mass

-- t

• Keulegan-Carpenter Number ($KC = U_m T / D$): --

• Armor Layer Thickness ($2.5 D_{50}$): -- m

• Armor Outer Extent Radius ($R_{ext} = 4.5 D$): -- m

• Required Rip-Rap Volume: -- m³

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