Knowledgebase
Welcome to the BTL Knowledgebase. Ever since we started lining ponds, creating covers, and helping people with their projects, we've gotten asked a lot of questions. Many of these questions are repeatedly asked, so we put together the BTL knowledgebase to help answer any questions you had about a particular subject. We are adding new questions every month, so continue to check back often!
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How Much Does it Cost to Install a Silt Curtain?
Depending on your project size, factors like waves, currents, and wind, and the type of curtain you’re using: you can expect to pay between $400 and $800 for a 50 foot section to be installed.
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What Happens if I Don't Use a Turbidity Curtain?
While some States or local governments require that a certain level of sediment control be maintained, it is also beneficial to any body of water to decrease turbidity in order to improve looks, the health of the water, and protect the life within.
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Where Do You Place a Turbidity Curtain?
You’ll want to place your silt curtain parallel to the current, in the water directly downstream from your job site.
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Are Turbidity Curtains Permanent?
Turbidity curtains are typically employed at job or construction sites in order to control sediment discharge while soil may be disturbed or exposed to erosion -- while these can last a long time with proper maintenance, they are usually removed at the en
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When is a Silt Curtain Required?
You’ll want to employ a silt curtain at your project when you’re unable to use other forms of erosion control, and when constructing near or within the bank of a river or near a shoreline.
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How Do You Maintain a Silt Curtain?
Silt Curtain maintenance is best achieved when the curtain is properly installed in the first place, and an eye is kept on the physical curtain throughout the project and after every storm.
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What's the Matter if Dirt Washes Into a River?
Dirt included in runoff from construction sites or urban areas into rivers can increase erosion, harm wildlife, and be full of toxic chemicals and pollutants.
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What is the Difference Between Erosion and Sediment Control?
Erosion control involves the prevention of particles being affected by incoming rain; if this fails, Sediment control is meant to catch the already moving particles by blocking runoff.
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What Are Methods of Controlling Erosion?
Erosion is reduced by increasing soil stability, which can come in the form of plant life to provide vegetation cover, mulching, tarps, or redirecting runoff.
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What Fabric is Used in Turbidity Curtains?
Turbidity curtains are typically made from an impermeable geotextile fabric or curtain; or a porous, filtering fabric that allows water to pass through.
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What Makes Water Turbid?
Turbidity is caused by floating particles that restrict and scatter light throughout the water -- erosion and the resulting silt and sediment, algae, and other solids all contribute to turbidity.
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How Much Does a Turbidity Curtain Cost?
Depending on your needs, the different class of turbidity curtains and the fabric you use can widely vary in style and cost; you'll want to determine what your requirements are first
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How Do You Control Sediment in a River?
As in most things, the key to controlling an unfavorable consequence is to prevent it from happening in the first place.
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Should I Dig Out the Silt That My Silt Curtain Catches?
The vast majority of settled sediment in a waterway remains that way, so the process of detaining additional silt and sediment and giving it a chance to settle is usually enough to maintain water quality.
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When Should I Remove a Floating Silt Barrier?
This is a great question, and it may surprise you to know that removing a silt curtain can require nearly as much care and planning as installing one.
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What is Silt Protection?
Silt protection encompasses several types of tools that prevent the movement of silt and sediment into and through bodies of water, usually from construction sites or other activities that disturb the soil.
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How Many Feet Wide Should A Turbidity Curtain Be?
In any but the most limited barrier setups, the engineer that designs your system will be able to calculate how much play your curtain should have as well as how that will affect your anchoring strategy.
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How Do Silt Barriers/Turbidity Curtains Work?
Turbidity curtains are used to prevent the movement of silt and sediment outside the immediate area where silt and sediment are stirred up by construction, dredging, or other activities.
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What Depth Should My Silt Curtain Be?
Silt curtains are usually manufactured to hang down to about 1 foot from the bottom of the water bed.
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How Do You Use Turbidity Curtains When the Bottom Isn't Even?
It’s fairly common to use turbidity curtains where the depth varies across the containment area - not many rivers have a flat bottom, after all.
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Do You Manufacture Your Turbidity Curtains and Boom?
Absolutely. In fact, BTL Liners specializes in manufacturing turbidity curtains to custom specs based on your engineer’s build drawings.
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Can a Silt Curtain be Repaired?
Silt or Turbidity curtains can be repaired, but the process requires that the panel in question be removed from the water, which can be a significant undertaking
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Do You Keep Turbidity Curtains in Stock?
That’s a great question. BTL Liners specializes in fabricating turbidity curtains to custom specs based on an engineer’s build drawings.
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