🪨 USACE Coastal Engineering (Hudson Equation Armor Stone Weight Tons, Wave Height H)

Coastal Rock Riprap Revetment Calculator

Size quarrystone armor rock revetments protecting coastal shoreline embankments from storm wave erosion using the classical Hudson Equation ($W = [gamma_r imes H^3] / [K_D imes (S_r - 1)^3 imes cot heta]$): calculate median armor rock weight ($W_{50}$ in metric tons), underlayer stone grading, toe scour trench depth, and coastal heavy civil contracting margins.

1. Project & Operating Inputs

Shoreline Revetment Length (Linear Feet e.g. 1,200 Linear Feet Revetment)

Design Breaking Wave Height (Feet e.g. 8.5 ft 50-Year Design Wave)

Customer Bid Price for Supplied & Excavator Placed Armor Rock ($ / Ton)

3-5 Ton Granite Armor Stone, Geotextile Filter Fabric, Excavators ($ / Ton)

2. Financial Breakdown & Yield

HUDSON FORMULA SHORELINE REVETMENT

Turnkey Coastal Shoreline Revetment Profit

Heavy Marine Earthwork Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost