Type 2 Turbidity Curtains

Type 2 Silt Barriers

Type 2 turbidity curtains are best used to contain silt and turbidity in moving water applications. Type 2 silt barriers are manufactured using high strength fabric with heavy duty tension members, along with aluminum stress plates that the bottom skirt corners. These type 2 turbidity curtains are best used in dredging and marine construction areas that experience mild current, wind, and wave activity. ABASCO manufactures DOT (Department of Transportation) certified type 2 turbidity curtains.

Type 2 DOT Turbidity Curtain Applications

ABASCO Type 2 Silt Barrier

Application: Lakes, streams, slow-moving rivers, inter-coastal and tidal areas Depth Range: 2’ – 65’

Type 2	Fabric	Float	Chain	Cable	Options
EC-DOT	18 oz PVC Polyester	6”, 8”, 10”	5/16”	5/16”	Float, Chain
WC-DOT	22oz PVC Polyester	6”, 8”, 10”	5/16”	5/16”	Float, Chain
Heavy Duty	22oz	6”, 8” 10, 12”	5/16” – 3/8”	5/16”	Float, Chain
Filter Fabric Skirt	Woven or Nonwoven	6” – 12”	5/16” – 3/8”	5/16”	Float, Chain, Skirt Fabric

Type 2 Heavy Duty Turbidity Curtain Specifications

Fabric	22 oz/sq yd PVC-coated polyester; optional filter fabric for skirt
Flotation	8-in to 12-in diameter (depending on skirt depth) expanded polystyrene (EPS) foam contained in individually sealed float pockets
Top tension	5/16-in galvanized steel cable (9,800 lb breaking strength) contained in a polyethylene tube
Bottom tension and ballast	5/16-in galvanized steel chain: 7,600 lb breaking strength; 0.93 lb/ft weight
End connectors	High-tensile-strength aluminum universal connector at float and top tension cable. ASTM 3/8-in stainless steel locking pins. Lacing grommets on reinforced fabric on lower skirt. Chain ends shackled section-to-section. Tool-free connections.
Section length	50 ft and 100 ft, standard
Skirt depth	To 50 ft; Can be tapered to conform to bottom profile.
Options	Permeable Skirts (Woven & Non-Woven), Furling lines, Tapered Bottom Profile, Stainless Steel Cables (Long-term Saltwater Applications)
Available accessories	Anchor systems, bridles, marker buoys, solar-powered lights, repair kits.

Type 2 EC-DOT Turbidity Curtain Specifications

ABASCO Type II EC-DOT Turbidity Curtains include heavy duty tension members at the top and bottom of the curtain and quality 18 oz. PVC laminated fabric.

Fabric	18 oz/sq yd PVC-laminated fabric; optional filter fabric for skirt
Flotation	6-in to 12-in diameter (depending on skirt depth) expanded polystyrene (EPS) foam contained in individually sealed float pockets
Top Tension	5/16-in galvanized steel cable (9,800 lb breaking strength) contained in a polyethylene tube
Bottom tension and ballast	5/16-in galvanized steel chain: 7,600 lb breaking strength; 0.93 lb/ft weight
End Connectors	High-tensile-strength aluminum universal connector at float and top tension cable. ASTM 3/8-in stainless steel locking pins. Lacing grommets on reinforced fabric on lower skirt. Chain ends shackled section-to-section. Tool-free connections.
Section Length	50 ft and 100 ft, standard
Skirt Depth	To 50 ft; Can be tapered to conform to bottom profile.
Options	Permeable Skirts (Woven & Non-woven), Furling Lines, Tapered Bottom Profile, Stainless Steel Cables (Long-term Saltwater Applications)
Available Accessories	Anchor systems, bridles, marker buoys, solar-powered lights, repair kits.

Type 2 WC-DOT Turbidity Curtain Specifications

Fabric	22 oz/sq yd PVC-laminated fabric; optional filter fabric for skirt
Flotation	6-in to 12-in diameter (depending on skirt depth) expanded polystyrene (EPS) foam contained in individually sealed float pockets
Top Tension	5/16-in galvanized steel cable (9,800 lb breaking strength) contained in a polyethylene tube
Bottom tension and ballast	5/16-in galvanized steel chain: 7,600 lb breaking strength; 0.93 lb/ft weight
End Connectors	High-tensile-strength aluminum universal connector at float and top tension cable. ASTM 3/8-in stainless steel locking pins. Lacing grommets on reinforced fabric on lower skirt. Chain ends shackled section-to-section. Tool-free connections.
Section Length	50 ft and 100 ft, standard
Skirt Depth	To 50 ft; Can be tapered to conform to bottom profile.
Options	Permeable Skirts (Woven & Non-woven), Furling Lines, Tapered Bottom Profile, Stainless Steel Cables (Long-term Saltwater Applications)
Available Accessories	Anchor systems, bridles, marker buoys, solar-powered lights, repair kits.

Type II Turbidity Curtain with Plain Skirt

Type II Turbidity Curtain with Filter Fabric Skirt

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FAQs

What is a Type 2 turbidity curtain used for?

Type 2 turbidity curtains contain silt and turbidity in moving water, and are best suited to dredging and marine construction areas with mild current, wind and wave activity.

What is the difference between EC-DOT, WC-DOT and Heavy Duty Type 2 curtains?

EC-DOT uses 18 oz PVC polyester fabric, while WC-DOT and Heavy Duty use heavier 22 oz fabric with wider float and chain options for more demanding conditions.

Is ABASCO's Type 2 turbidity curtain DOT certified?

Yes. ABASCO manufactures DOT (Department of Transportation) certified Type 2 turbidity curtains for roadwork, pile driving, remediation and rip rap installation projects.

How deep can a Type 2 turbidity curtain be used?

ABASCO’s Type 2 silt barrier is rated for lakes, streams, slow-moving rivers, inter-coastal and tidal areas at depths from 2 feet to 65 feet.

What section lengths are available for Type 2 curtains?

Type 2 turbidity curtains are manufactured in standard 50-foot and 100-foot sections that connect into one continuous barrier, with a skirt depth up to 50 feet.