The heaviest duty version of the DOT turbidity curtains, Type 3 curtains are meant to withstand stronger winds, waves, and faster currents. You'll most often find these curtains in or around shorelines or fast, deep rivers. These curtains are built with the thickest fabric, and have the highest load-bearing capacity as well as breaking point. They'll often involve a secondary steel cable that runs throughout the top and bottom of the curtain, providing extra structure.
These also come in standard sizes, with adjustments possible for particular depths or extenuating circumstances. Their floats will often be larger than those of the other types, allowing for stronger waves and higher tides without being submerged.
