Type 3 Turbidity Curtains
Heavy Duty Curtains
ABASCO Type 3 Turbidity Curtains, also referred to as Type III Turbidity Curtains, combine our standard high-strength fabric with heavy duty tension members above and below the flotation and at the bottom of the curtain), fabric reinforcement, and stress plates a the bottom skirt corners. Type 3 silt barriers are ideal for silt and sediment control during dredging and marine construction activities in rivers, bays and waterways with moderate current, wind and wave activity.
ABASCO Type 3 Barrier
| Type 3 | Fabric | Float | Chain | Cable | Options |
|---|---|---|---|---|---|
| Medium Duty | 22oz PVC Coated Polyester | 8”, 10”, 12” | 3/8” – 1/2" | 5/16” | Float, Chain |
| Heavy Duty | 22oz or greater | 10” – 24” | 3/8”, 1/2” 5/8” | Dual 5/16” | Float, Chain, Skirt Fabric |
| Filter Fabric Skirt | Woven or Nonwoven | 8” – 24” | 5/16” – 5/8” | Dual 5/16” | Float, Chain, Skirt Fabric |
Type 3 Heavy Duty Turbidity Curtain Specifications
| Fabric for float and chain pockets | 22 oz/sq yd PVC-coated polyester |
| Fabric for skirt area | As above, or woven/nonwoven filter fabric |
| Flotation | 8-in to 12-in diameter (depending on skirt depth) expanded polystyrene (EPS) foam contained in individually sealed float pockets |
| Top tension | Two 5/16-in galvanized steel cable (9,800 lb breaking strength) contained in polyethylene tubes; one above and one below the float |
| Bottom tension and ballast | 3/8-in galvanized steel chain (10,600 lb breaking strength); 1.41 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 skirt. Chain ends shackled section-to-section on the type III turbidity curtains. Tool-free connections. All corners reinforced with 40-oz PVC fabric. Aluminum stress plates at bottom corners. |
| Section length | 50 ft and 100 ft, standard |
| Skirt depth | To 100 ft; Can be tapered to conform to bottom profile. |
| Furling lines | Available on request |
| Available accessories | Anchor systems, bridles, marker buoys, solar-powered lights, repair kits. |
Type 3 Medium Duty Turbidity Curtain Specifications
| Fabric for float and chain pockets | 22 oz/sq yd PVC-coated polyester |
| Fabric for skirt area | As above, or woven/nonwoven filter fabric |
| Flotation | 8-in to 12-in diameter (depending on skirt depth) expanded polystyrene (EPS) foam contained in individually sealed float pockets |
| Top tension | A 5/16-in galvanized steel cable (9,800 lb breaking strength) contained in polyethylene tubes; located above the float |
| Bottom tension and ballast | 3/8-in galvanized steel chain (10,600 lb breaking strength); 1.41 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 skirt. Chain ends shackled section-to-section on the type III turbidity curtains. Tool-free connections. Aluminum stress plates at bottom corners. |
| Section length | 50 ft and 100 ft, standard |
| Skirt depth | To 100 ft; Can be tapered to conform to bottom profile. |
| Furling lines | Available on request |
| Available accessories | Anchor systems, bridles, marker buoys, solar-powered lights, repair kits. |
Type 3 Heavy-Duty Turbidity Curtain with Plain Skirt
Type 3 Heavy-Duty Turbidity Curtain with Filter Fabric Skirt
Want to Learn More About Turbidity Curtains?
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ABASCO, Inc.
8561 E North Belt
Humble, TX 77396, USA
FAQs
What is a Type 3 turbidity curtain used for?
Type 3 turbidity curtains control silt and sediment during dredging and marine construction in rivers, bays and waterways with moderate current, wind and wave activity.
What is the difference between Type 3 Heavy Duty and Medium Duty curtains?
The Heavy Duty version uses two galvanized steel cables above and below the float for extra top tension, while the Medium Duty version uses a single cable above the float; both share the same fabric, flotation and bottom chain specifications.
How deep can a Type 3 turbidity curtain be used?
ABASCO’s Type 3 barrier is rated for open water exposed to moderate wind, waves and moving water at depths from 3 feet to 130 feet.
What section lengths are available for Type 3 curtains?
Type 3 turbidity curtains are manufactured in standard 50-foot and 100-foot sections that connect into one continuous barrier.
Can Type 3 turbidity curtains be customized?
Yes. ABASCO offers customizations including furling lines, tapered bottom profiles, and filter fabric or plain skirts to match specific site conditions.