Use the turbidity curtain selection guide below to help you find the best option for your project. Which type of turbidity curtain do you need? There are many important factors to consider when selecting the type and grade of turbidity curtain for your application.
Be sure to consider the type of turbidity curtain you are installing when formulating your floating turbidity barrier plan. The type of turbidity curtain will determine what types of floating barrier marine accessories are necessary to ensure successful deployment.
Turbidity barriers are floating barriers designed to contain and control the dispersion of silt suspended within the water column. We also manufacture products for other types of marine applications, such as Boom for surface debris, pollutants, and oil. Water Baffles are another compliance solution for directing or slowing water for sedimentation, and Diffusion Mats are for minimizing the impact of water and resulting turbidity.
Turbidity Curtain Selection Guide
TYPE 1 SILT CURTAIN*: For still water areas with calm wind conditions, and where there is no current. See Type 1 Silt Barriers Detail Specs.
|Model||Water Depth||Fabric||Flotation||Ballast Chain|
|Type 1 Geo Permeable||4'-10'||8 oz Nonwoven Geo||4" or 6"||5/16"|
|Type 1 Contractor||4'-10'||13 oz PVC||4"||3/16"|
|Type 1 Economy||4'-21'||13 oz PVC||6" or 8"||3/16"|
|Type 1 DOT||4'-21'||18 oz PVC||6" or 8"||1/4"|
TYPE 2 SILT CURTAIN*: For conditions where waves are less than 2 feet, with calm to moderate wind, and current is no more than 1 knot. See Type 2 Silt Barriers Detail Specs.
|Type 2 Contractor||4'-11'||13 oz PVC||4"|
|Type 2 DOT||4'-21'||18 oz PVC||6" or 8"|
|Type 2 HD||4'-101'||22 oz PVC||6", 8" or 12"|
|Type 2 Permeable||4'-101'||22 oz PVC w/ Monofilament Fabric||6", 8" or 12"|
TYPE 3 SILT CURTAIN*: For conditions where waves are less than 2 feet, wind is calm to moderate, and current is no more than 1.5 knots (or 2.5 fps). See Type 3 Silt Barriers Detail Specs
|Type 3 DOT
(3' to 20' Draft)
|4'-11'||18 oz PVC w/Monofilament Fabric||6" or 8"|
|Type 3 HD Impermeable
(3' to 100' Draft)
|4'-21'||22 oz PVC||12"|
|Type 3 HD Permeable||4'-101'||22 oz PVC w/ Monofilament Fabric||12"|
* Mechanical conditions and construction factors may affect product performance and maintenance. In addition, special anchoring methods may be required.
Turbidity curtains will also require the proper accessories to ensure it is installed and maintained correctly. One such accessory is a curtain ballast. A curtain ballast offsets some of the billowing of the turbidity curtain without completely stopping it. How the curtain ballast will perform will depend on site conditions. See: turbidity curtain installation accessories.
NOTE: Turbidity curtains also are known by many other names, such as: turbidity barriers, silt curtains, sediment barriers, floating silt fence, filter fence, and filter curtain!