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Floating Turbidity Control Curtains
Turbidity Curtain, Silt Curtain, Curtain Floating. For protection of marine life while dredging. PVC coated floatations - ultraviolet resistant. Geotextile fabric screens. Chain ballast with connectors. Double sewn seams with grommets. Depths per requirements `50` sections; 1`-12`deep 12`-24` deep 24`-36` deep 36`-48` deep.
Floating Turbidity Control Curtains are impermeable barriers* constructed of a flexible reinforced thermoplastic material dielectrically welded to provide an upper hem for enclosing flotation material and a lower hem for enclosing ballast material. The skirt depth of the silt curtain is the material vertically below the upper hem. The length of the turbidity curtain is the horizontal distance between ends. Additional construction features are dependent on silt curtain design.
Curtain Floating Barriers are designed to control the settling of solids (silt) suspended in water by providing a controlled area of containment. This condition of suspension (turbidity) is usually created by disrupting natural conditions through construction or dredging in the marine environment. The containment of settleable solids is desirable to reduce the impact area of these solids.
Although the Silt Curtains listed are standard, Boom Environmental can custom design specific floating booms to solve unique problems. What this means is that the standard designs are available with a variety of fabric options, flotation sizes, load-bearing and ballast members, connectors and lengths. When a variation on a standard design won`t work, Boom Environmental engineers can design to meet the requirements.
Lightweight Turbidity Curtain
Application: Calm waters with little current, such as lakes, ponds, canals and shoreline areas.
Specifications
- Fabric - Polyester reinforced vinyl high visibility yellow
- Connector - Sections are laced together through grommets and load lines are bolted together.
- Flotation - 6" expanded polystyrene over 9 lbs./ft. buoyancy.
- Ballast - 1/4" galvanized chain (.7 lbs/ft).
Middleweight Turbidity Curtain
Application: Rivers, streams, open lakes and exposed shorelines with moderate current moving in one direction.
Specifications
- Fabric - Polyester reinforced vinyl high visibility yellow 18 oz/yd2 weight.
- Connector - Shackled and bolted load lines.
- Flotation - 8" expanded polystyrene over 19 lbs/ft buoyancy.
- Ballast Line/Ballast - 5/16" galvanized chain (1.1 lbs/ft).
- Top Load Line - 5/16" galvanized wire rope enclosed in heavy tubing.
Heavyweight Turbidity Curtain
Application: Exposed areas subject to current, wind and tides.
Specifications
- Fabric - High strength nylon reinforced vinyl high visibility yellow 22 oz/yd2 weight.
- Connector - Snap hooks and rings connect load lines with slotted reinforced PVC pipe for fabric closure. *Optional extruded aluminum connectors.
- Flotation - 12" expanded polystyrene over 29 lbs./Ft buoyancy.
- Ballast - 5/16" galvanized chain (1.1 lbs/ft).
- Load Lines - Dual 5/16" galvanized wire ropes with heavy vinyl coating.
