Accessories for Containment Boom and Turbidity Curtain Installations

Whether you are installing oil spill containment boom or turbidity curtains, these products are only one of the items you will need for a successful deployment.  Factors such as wind, tide levels, currents, boat traffic, and safety issues are all considerations when developing your plan. Texas Boom Company offers a wide range of accessories that can make your installation easier, safer, and more effective.  Anchors, lines, buoys, lights, beach stakes, and tow bridles can all be important additions to a successful installation.  

Containment Boom Silt Curtain Accessories

Installation layouts can result in varied layouts and patterns to best accomplish the intended goal of containing material or silt.  These same considerations come into play with traditional oil spill containment boom, sorbent containment boom, inflatable containment boom, shore barrier boom, or permanent type fence boom.  Texas Boom Company offers installation instructions and a number of diagrams that show different layouts for containment boom installation or turbidity curtain installation

Layout:

The layout of the containment boom or turbidity curtains will determine the overall length of the barrier required.  These boom or curtain systems are made in modular form with universal end connectors that allow the sections to be connected for additional length.  Section lengths are typically 50 feet or 100 feet.  TBC can accommodate custom lengths as well.  For turbidity curtains or silt curtains, the depth of the skirt is also a consideration.  Typically, the skirt of the silt curtain should not be in contact with the bottom, as sand, mud, and sediment can build up on the curtain and eventually drag the flotation under.  Having the skirt dragging on the bottom can also create additional silt, which defeats the purpose of these containment products.  A one-foot gap between the bottom of the body of water and the bottom of the skirt is recommended. 

TBC OCB PARITALLY SURROUNDING a

 

TBC OCB ANGLE a

 

TBC OCB CHEVRON a

 

TBC OCB OPEN CHEVRON a

 

TBC OCB U a

Anchor plan:

Once the layout if finalized, an anchor plan should also be developed.  If tides are expected to change direction, dual anchor setups holding the boom or silt curtains in either direction may be required.  Depending on the bottom surface, different types of anchors may prove to be more effective.  Adding anchor line buoys and trip lines with additional buoys can help in adjusting or retrieving the anchor systems.  Sometimes, anchors can be doubled up to improve the holding power of the installation of tides or currents that are particularly strong.  Anchor setups should be monitored regularly to allow for timely adjustment as conditions may change or anchors lose their hold on the bottom.  Danforth anchors are the most common type of anchor used for these types of deployments, but heavier pyramid anchors are also used when conditions dictate.  Plow-style anchors are also sometimes used for boom and silt curtains.  Pilings, piers, trees, or beach stakes also offer viable anchor points when a deployment is executed near shore. 

Silt Curtain Single Anchor

 

Silt Curtain Anchor Both Sides

 

Silt Curtain Double Anchor

 

Deploying the Boom or Silt Curtain:

If deploying from shore, the boom or turbidity curtain should be positioned at the water’s edge and arranged in an accordion pattern.  Care should be taken when positioning the boom or turbidity curtain to avoid dragging the product on the ground, which risks abrasions and damage.  Any straps or tie downs that will keep the boom or turbidity curtain from unfolding should be removed, but furling lines or straps that keep the skirt of the turbidity curtain folded should be left in place until the turbidity curtain is anchored in position.  Sections of containment boom or turbidity curtain can be connected end to end at this stage to provide more coverage length.  It is advised to use a tow bridle to attach a tow line to the boom or turbidity curtain, as the tow bridle distributes the load evenly across the end connectors. 

If the containment boom or turbidity curtain is being deployed from a boat, it should be arranged on the boat in an accordion pattern and carefully fed over the side when in an approximate location.  Again, and furling lines or ties should be left in place on a turbidity curtain to make the skirt more easily handled during positioning.  Sections can be connected end to end on the boat before deployment.  It is recommended to anchor the initial end of the boom or turbidity curtain to allow the boat to slowly move away and pull the length of the product off the boat and into position in the water.   Boom reels are sometimes used on boats to make the deployment spill containment boom easier as the boom can be unspooled instead of dragged. 

It may be more efficient to initially place your anchors with lines and buoys in position before the boom or turbidity curtain is placed in the water.  The position of these anchors can be adjusted as needed, and trip lines with buoys on the anchors can make the adjustment process much easier.   

Accessories:

Anchors There is a wide range of anchor styles available.  However, most containment boom and turbidity curtain installations use one of two types of anchors:

1 – Danforth Anchor (flute style) – these anchors perform best in sand or mud, but are versatile enough to hold well on rocky, grassy, clay or weed bottoms as well.  The Danforth anchor holds best when an anchor chain is used between the anchor and the anchor line.   The weight of the chain helps to reduce the angle of the stock of the anchor relative to the bottom during normal use and thus helps to keep the flukes engaged with the terrain below. 

Texas Boom Anchor Kit

 

2 – Pyramid Mooring Anchor – the Dor-Mor Pyramid Mooring Anchors rely more on a combination of weight and shape to help moor a containment boom or turbidity curtain.  The inverted pyramid shape tends to serve as a wedge when dropped, partially or fully burying itself if the material on the bed allows.  Once covered, the holding power of the Pyramid Mooring Anchor is increased significantly.  Because these Pyramid Anchors can weigh anywhere from fifteen to four thousand pounds, the weight helps maintain position and the surface area of the top of the anchor helps allow it to become buried. 

Pyramid Mooring Anchor

 

Anchor Lines Durable, high-strength ropes are typically used to attach containment boom or turbidity curtains.  100% monofilament polypropylene rope offers a great combination of strength, stretch, and resistance to rot, mildew, grease, oil, and most chemicals.  There are times when stainless steel or galvanized steel cable may be appropriate to serve as the connection between a boom or turbidity curtain and pilings or other above water anchor points.   The length of the anchor lines should be long enough to provide adequate scope.  Scope is calculated as the ratio of the length of the anchor line to the depth of the water and is ideally at least three, meaning the anchor line should be at least three times the maximum water depth where the containment boom or turbidity curtains is installed.

Texas Boom Anchor Line

 

Buoys The most common buoy types used with containment boom and turbidity curtains are round inflatable marine-grade vinyl buoys.  These are typically shipped deflated and are easily inflated with a hand pump or powered air pump.  In a normal deployment, a larger inflatable buoy is attached to the end of the anchor line opposite the anchor.  A smaller round buoy can be attached to a trip line above the anchor.  This line is connected to the bottom end of a Danforth Anchor and allows the trip line to pull in the opposite direction of the anchor line, often making it easier to dislodge the flukes of the anchor from the seabed, riverbed, or lakebed.  By making these two buoys different sizes, it is easy to visually indicate which is the anchor line and which is the trip line. 

Texas Boom Buoys 2

 

Beach Stakes Beach Stakes are used on land to provide a secure anchor point.  There are two primary beach stake styles.  One is a longer studded steel stake that is driven into the ground.  A stud plate is included with each stake and the studs provide added grip to make tying off easier.  The second type of beach stake used is auger-style stakes.  As their name indicates, they are shaped like an auger or screw and are twisted into the ground.  Because the auger blades are positioned perpendicular to the ground, the auger blades provide added holding strength once buried.  Galvanized steel beach stakes will last longer in salt environments that always shorten the life of steel products. 

Auger Beach Stakes

 

Tow Bridles Tow Bridles are designed to attach uniformly the ASTM aluminum end connectors present on most containment boom or turbidity curtains.  Because the tow bridles are made to marry up to the end connector, it evenly distributes the force exerted on the boom or turbidity curtain when it is being pulled or towed into position or being removed after use.  The cable of the tow bridle is formed into an eyelet that makes it easy to attach a tow line.  Tow Bridles should be left on a boom or turbidity curtain if the anchor point is land-based, such as a pier, piling, tree, fence post, or beach stake.  The same benefits apply as the tow bridle distributes the force evenly, helping to lengthen the life of the product.  Because tow bridles are constructed of aluminum and galvanized cable, they hold up well in saltwater environments. 

Tow Bridle with Float

 

Buoy Marker and Lights When containment boom and turbidity curtains are deployed in areas with boat traffic, they can create a hazard to boaters, particularly at night.  Battery-operated Buoy Lights can help reduce the risk of boating accidents by offering a warning to nearby boat traffic.  Beyond the risk of injury that could occur if a boar or water vehicle were to hit a section of containment boom or turbidity curtain, there is also potential damage to the product itself.  These Buoy lights can also make it easier to monitor the position of boom or turbidity curtains from afar or ashore at night.  These relatively inexpensive beacons can be mounted on brackets that can be hard-mounted to the aluminum end connectors or can be tethered to the boom or turbidity curtain while being suspended above the water with a float collar.  The lights are manufactured to either remain solidly lit with a steady burn or flash at a time interval of 30 times per minute, depending on the model.  These buoy marker lights are offered with white, red, green, or amber lenses.   The marker lights offered by Texas Boom Company comply with USCG Rule 88.15 for dredge and pipeline applications, USCG Rule 24 for towing or pushing, and USCG Rule 22 for visibility of lights.

Jim Buoy 9000 X Light Bracket and Float

 

Repair Kits Texas Boom Company Fabric Repair Kits contain all the material needed to repair small rips, tears, punctures, or abrasions in the PVC or Urethane fabric often used to manufacture oil spill containment booms and turbidity curtains.  These fabric repair kits meet military specifications and include the following:  case, 2 pairs of gloves, 2 masks, 6 brushes, 2 cutters, roller, 2 bottles w/ caps, laminate, adhesive, solvent, sandpaper, spatula, and instructions.  By repairing damage early, it can preclude a small tear from becoming a large tear. 

Texas Boom Repair Kit

 

Containment Boom Reels - Boom reels are large spools that allow oil spill containment boom to be stored by winding the boom around the spindle of the reel.  Boom reels can be mounted on trailers, boats, or movable pallets.  When needed, the containment boom can be unwound, allowing for easy removal and deployment.  The reels can be manually operated or powered by motors to reduce the effort required to wind and unwind the boom onto the reels.  

Boom Reels aa

 

Texas Boom Company's knowledgeable staff is always happy to provide guidance on product selection, installation instructions, customization, and any other facet of your project.  Feel free to call 844-444-8144 any time.  

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