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Turbidity Curtain Barrier - Type 1 DOT - 10' x 50'

$1,114.95

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SKU TUR-10X50-1-DOT

Turbidity Curtain Barrier - Type 1 DOT - 10' x 50'

Model: 
TC-10X50-D
Brand: Tough Guy / AER-FLO

Size: 10' x 50'
Product Specifications:  Download Printable Spec Sheet >

Note: This Turbidity Curtain is a stock item and typically ships within one business day. 
 

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PRODUCT INFO:

  • This is the most frequently specified barrier in the TOUGH GUY® barrier line. It is recommended for construction sites located in protected areas that are exposed only to light winds and to current velocities of less than one foot per second.
  • This type of site may include ponds, shallow lakes, small streams and marshes.
  • Anchorage consisting of stakes or concrete blocks may be required to maintain the barrier in its required position. Barrier sections are connected by rope lacing or nylon ties and supplied separately.

Why Buy Turbidity Curtains from Paramount Materials?

  • We only sell the Tough Guy brand commercial-grade curtains which are made in the USA. Widely regarded as the “go to brand” for quality and strict adherence to stated specifications.
  • We do not sell "no-name" or "off-brand" curtains. These economy curtains often claim to meet spec but due to oversees manufacturing variances sometimes do not, leaving the installer exposed to potential fines and project delays.
  • When you call, we answer. When you call Paramount Materials you get a live person quickly, ready to help with product or order questions. (M-F 5:00 am - 3:00 pm Pacific Time)

Tough Guy® Floating Turbidity Barrier Type 1.DOT

Specifications (ST: 10/08)

Fabric - 18 oz. nominal laminated vinyl/polyester having the following characteristics:

Construction - vinyl laminate on 9X9 1000 x 1300 denier polyester scrim Weight – 18.5 oz. per sq. yd. (434 gr./sq. m.)

Adhesion – 24 x 20 lb./2”

Grab Tensile – 410 x 410 lb./in. (430 x 421 daN/5cm.)

Tongue Tear – 100 x 100 lb. (95 x 95 daN)

Hydrostatic - 600 psi (4167 kPa) Cold resistance to crack: -40° F/C

All seams heat sealed

5/8 inch diameter poly rope reinforced vertical edges

#4 brass grommets

1/4 in. galvanized chain ballast

EPS flotation, 6 in. x 6 in., 13.5 lb./ft. buoyancy in fresh water and 14.4 lb./ft buoyancy in saltwater.

Looking for a Custom Depth Or Length Barrier?

Custom sizes are available on orders of 5+ barriers. Request Quote >

Type 1 Turbidity Curtains

Type 1 Turbidity Curtains

Type 2 Turbidity Curtains

Type 2 Turbidity Curtains

Type 3 Turbidity Curtains

Type 3 Turbidity Curtains

What Is Turbidity?

Broadening or deepening an area and depositing of the dredged material in open water will generate turbidity by suspending fine-grained particles of the material in the water columns. Water columns are ways to measure pressure and they run from the surface of the water to the bottom. The effects of various levels of turbidity, whether direct or indirect, have not been measured, but the effects of discoloration of the water and lack of clarity can be unpleasant.Turbidity can be limited under certain circumstances by using the right turbidity curtain. These curtains, or silt curtains, are vertical barriers designed to hold the turbid water created by the dredging process. The curtain is manufactured for a variety of depths.

Basically, turbidity curtains offer a barrier that extends from the surface of the water to several feet below the surface to prevent the turbid water from reaching the water's surface and spreading by dispersion or by the flow of the current.  In the case of shallow water, the barrier will extend from the surface to the bottom bed. The effectiveness of the curtain is determined by the level of turbidity reduction outside versus inside the curtain's enclosure.

Turbdity Curtain Installed Near Dock

Floating Turbidity Curtain Installed Near Dock

Turbidity curtains are used on a wide variety of engineering and construction projects. These curtains are also used for more than dredging such as being placed across ditches and spillways and on marine construction undertakings including outfalls, pile driving, highways, and for bridges crossing a lake, as baffling with several tires across the mouth of a canal to enclose discharge from a confined disposal area. They are also used to combat the flow inside the disposal area. During the dredging and open water disposal operations, these curtains are distributed to surround the discharge mark or to form a barrier downstream of the turbid area.

Note: This is also a good time to do pier maintenance. If you haven’t installed a dock piling wrap to protect your pilings from UV, and marine damage, we have multiple size and width options available.

Turbidity curtains are used on a wide variety of engineering and construction projects. These curtains are also used for more than dredging such as being placed across ditches and spillways and on marine construction undertakings including outfalls, pile driving, highways, and for bridges crossing a lake, as baffling with several tires across the mouth of a canal to enclose discharge from a confined disposal area. They are also used to combat the flow inside the disposal area. During the dredging and open water disposal operations, these curtains are distributed to surround the discharge mark or to form a barrier downstream of the turbid area.

Turbidity curtains are also called silt curtains, silt screens, silt barriers, or turbidity barriers are floating barriers used during machine construction, dredging, and remediation projects to control silt and sediments in the water  In one particular case, the waves onsite were crashing against the shoreline. The winds were so strong our plastic covers were being blown around. The turbidity curtain stayed intact and during dredging operations, there were no visible signs of turbidity outside of the curtain. The curtain performed perfectly! All waters whether a lake, ocean, stream, or river have their own natural sediment at their base. Sediment is a natural element of the body of water but when it becomes stirred up caused by construction or excavation work, it can become overwhelming to the all-natural atmosphere.

Turbidity Curtain Installed Near Construction Site

Type 1 Turbidity Barrier Installed Near
Construction Site

Occasionally, debris including concrete, dust, foreign soil, metals, and oils will find their way into the water when construction materials are carried out nearby.

Turbidity curtains and silt curtains are powerful enough to retain debris out of the water completely or include it in places where performance is being completed in the water itself. Turbidity curtains float on the surface of the water and create a barrier to control how far debris or silts can spread. These barriers can be customized in length so they can encompass a large or modest area including a shoreline. The curtains are laid out in order to float on the water. As debris is brought up from the floor of the water, or if the debris comes into the water from land, the curtains will catch it and prevent it from spreading.

One of the biggest reasons for using turbidity curtains or silt curtains is protecting organic water resources. There's a lot of silt and sediment on the floor of a body of water but they are not all-natural to the organic area. Water is good for removing pollutants and debris from the air but many particles settle on the bottom of the water and are components of the sediment layer. To make sure that protected layers are not stirred up during operations, it's our responsibility to get help from appropriate turbidity curtains or silt curtains because water is not able to do it alone.

Turbidity Barrier Installed in Open Water

A turbidity curtain is literally a floating geotextile material that is in place to minimize sediments moving from an adjacent area or within a body of water. This includes non-tidal and tidal waterways where invasion into the water by construction activities and subsequent sediment movement are taking place. The overall goal of recent studies is to understand the functional capabilities and performance of turbidity curtains to control the level and extent of turbidity. Turbidity is a hazy, cloudy appearance of water from individual particles that are invisible to the naked eye.

Project Configurations

Type I -

The configuration should be used in protected areas where there is no current and the area is sheltered from both wind and waves.

Turbidity Barrier Containing Sediment Near a Commercial Jobsite

Type II -

The configuration should be used in areas where the currents are slow or moderate. This would be 2 knots or 3.5 feet per second. The wind and waves can affect the curtain.

Type III -

This configuration should be used in areas with the potential of currents up to 3 knots or 5 feet per second and in areas where wind and waves are present.

Turbidity curtains should extend the entire depth of the waterway whenever the area is not subject to tidal activities or significant wind or wave forces. In tidal or wind and wave activities, the curtain should never be long enough to touch the bottom.

A one-foot gap should be in place between the ballast and the bottom of the skirt which would be during low water. Movement of the lower skirt over the bottom caused by tidal reverses or wind wave activities in the flotation system could fan and stir up settled sediments.

In tidal or wind and wave situations, it's not practical to extend a turbidity curtain depth lower than 10 to 12 feet below the surface, even in deep water. Curtains installed deeper than that will suffer from large loads and stress on the curtain material as well as the mooring system. Also, a curtain installed in this manner can billow up toward the surface under the pressure of the moving water. This will result in an affected depth that is significantly less than the skirt depth.

The turbidity curtains should be placed parallel to the direction of the water's flow.



Type 1 Turbidity Curtain Installed

Turbidity Curtain Installed in Shallow Water

When measuring the length of the curtain, you should allow for an additional 10 to 20% deviation in a straight line. This will compensate for measuring errors and make installation easier while reducing stress from potential waves during high winds. You should try to avoid an exorbitant number of joints.

For reasons of stability, it's good practice to have a maximum span of 100 feet between joints (anchors or stake locations)  The ends of the curtain, both floating upper and weighted lower, should extend well up into the shoreline, especially if there are high water conditions. The ends should be secured firmly to the shoreline, especially with rigid bodies, such as trees, to completely enclose the area where sediment may enter the water. If there is a specific need to extend the curtain to the bottom of the waterway during tidal or moving water situations, a heavy woven filter fabric may be substituted for the recommended impenetrable geotextile.  This can create a flow-through medium that will significantly reduce the pressure on the curtain and keep it in the same location and slope during times when the water rises and falls.