BLUEWater Design Group was selected by the Minnesota
Department of Natural Resources (State) to prepare the analyses, calculations
and preliminary designs for the City’s marina basin including
a Rubble Mound Breakwater. Numerical modeling methods were employed
to determine the optimum alignment for the rubble mound breakwater.
Wave environments were modeled for operational and extreme conditions
on Lake Superior to determine corresponding conditions within the marina
basin given alternative breakwater alignments. With the preferred breakwater
alignment, dock layout and internal basin designs were then prepared.
The preliminary designs were approved by the City and the State, then
provided to the US Corps of Engineers to prepare final construction