U.S. Barricades Type III DOT Turbidity Curtain or Silt Fence consist of a top flotation boom, impervious fabric curtain extending downward under water and galvanized steel chain sealed into a hem along the entire bottom of the curtain. This will provide ballast to keep the curtain vertical in the water under heavy current. End hems are sealed around a rope and grommets added to allow attachment to each other with rope or bolt/nuts/washers.
Type III DOT Turbidity Curtain are use in fast-moving, heavy-duty, tidal waters such as harbors, ports, shoreline and offshore where wind, current and tide changes require a heavy duty, dual cable barrier.
Turbidity curtains are manufactured in three basic types for different water conditions and project needs - Type I, II and III for slow, medium, and fast moving waters, respectively. Depending on the state or locale, variations to these basic types/specifications exist and are often tailored for specific project needs. U.S. Barricades manufactures turbidity curtains to specification for many state DOT requirements in addition to the standard types. Turbidity curtains and silt fence are made in the United States.