In this tool (breakwater design) you can compute required dimensions, overtopping, cross-sections and costs of rubble mound breakwaters.
The tool requires at least a breakwater and bathymetry data (you can inspect the generic data availability in the top panel of the tool).
Optionally, any generic wave data can also be used, in order to fill the wave condition fields.
Computations of breakwater dimensions and costs are based on rough guidelines in the Rock manual.
Results of the breakwater tool should therefore be interpreted with a considerable range of uncertainty.