Additional information
| Weight | 95 lbs |
|---|---|
| Dimensions | 75 × 27 × 31 in |
DOT Type 1 Turbidity Curtain – 50’L, 6″ Float x 5′ Skirt Length (Yellow)
$499.00
Product Overview
Silt curtains create a flexible, water-permeable barrier that extends to the base of the body of water, where it is typically anchored or weighted to prevent the silt curtain from moving. Our Type I DOT Curtain is manufactured to meet the U.S. Department of Transportation and other regulatory requirements for silt control. Silt curtains create a limited area for silt to settle, allowing most areas to remain unaffected by the negative environmental impacts of silt.
Product Features & Materials
Silt and turbidity curtains consist of a floating boom and a flexible fabric skirt that extends to the bottom of the body of water. While similar to an oil containment boom in some ways, a silt curtain skirt is much longer as suspended silt may be found in any depth of water.
Silt and turbidity curtains are typically supplied in 50 or 100-foot sections. The total length of a silt curtain will depend on individual project demands. Silt curtain fabric may vary in terms of durability and skirt type (filtration or solid fabric). When waves or fast-moving water are present, it may be useful to add tension cables or taller floats. Silt curtains also come in a variety of bright colors to warn others of their presence.
Silt/Turbidity Curtain Type I is the base model from which the others build on:
- It consists of 18oz, 22oz, 24oz, or 30oz PVC coated fabric: Yellow
- 6″ solid closed cell foam float
- 5ft skirt depth
- 1/4″ / 5/16″ / 3/8″ Galvanized Chain Ballast
- There is a strip of 2″ webbing that runs along the depth of the skirt on both ends that is punched with #4 grommets every 6″ to connect sections together
- It is common to use nylon rope to tie this together, ACME also offers toggle pins as an option for this.
Application Areas for Floating Silt Curtain Type I
Silt curtains may be used wherever sediment or other harmful materials may be entering an environment. Silt commonly results from construction or demolition near aquatic environments. In such cases, implementing a silt curtain is an effective way to prevent harm to aquatic life. Silt curtains may be used in a variety of locations, from ponds and lakes to harbors and inner coastal sites.
Choosing the correct type of silt or turbidity curtain may mean the difference between a successful containment and a failed attempt. Silt curtain type depends on two main components: water and site environments. It is important to factor in water flow rates, wave height and frequency, water type (salt or freshwater) and tides (if applicable) when deciding which silt curtain to deploy. Additionally, the wind speed and direction, project type and duration, and particle size and contamination level should be considered.
For Silt/Turbidity curtain type I, it is ideal in calm and protected areas of water, such as shallow lakes, ponds, marshes and small streams where there is minimal wind or current
Installation and Deployment of Floating Silt Curtain Type I
- ACME Environmental Turbidity and Silt Curtains are designed to provide proper compliance with The Clean Water Act and the National Pollution Discharge Elimination System (NDPES) requirements. These barriers are considered to be the most effective method of compliance and we custom manufacture these according to all customer specifications. Our barriers/curtains can be manufactured with both solid fabric or filter screen skirts in various sizes to fit multiple needs.
- Type I Curtain: Ideal in calm and protected areas of water, such as lakes with little to no current. This silt/turbidity curtain has a rounded closed cell foam float at the top, with PVC coated fabric and a galvanized chain ballast at the bottom.
- The position of the curtain is maintained by having constant tension throughout the ballast chain or cables to minimize arcing in the curtain caused by wind and current. When ensuring even distribution of tension throughout the curtain, end connectors play an important role. The connectors provide multiple points of attachment making sure tension forces are in the right places.
Regulatory Compliance Considerations
For years the Federal Department of Transportation (DOT) and other agencies have required the use of silt or turbidity curtains in water ways, lakes, rivers, and oceans where construction or human involvement may disturb sediment in and around these bodies of water.
The Clean Water Act and the National Pollution Discharge Elimination System (NDPES) require that federal and state agencies enforce laws to keep marine ecosystems clean. The most efficient solution for compliance with these regulations is through the use of floating turbidity or silt curtains.
ACME custom manufactures two different types of turbidity and silt curtains: solid fabric skirts and filter screen skirts. Manufacturing these to customer specifications creates a reliable method of controlling silt and sediment in the water. ACME curtains are used at pipeline crossing construction sites, marine construction and demolition sites, discharge locations, home construction sites, dredging operations and much more!