Silt Boom for Turbidity Control
Pier Repair and Maintenance Using Silt Barrier
Question: I am looking for a silt boom that I can use during a job that involves the reworking of piers that access fishing boats. I will need about 200 lf to protect from silt getting into tidal water. Average depth is 3 to 4 feet. I'm not sure if I need a Type 2 or a Type 3.
Answer: Thank you for contacting us! Choosing the right silt barrier for your location can depend on a variety of different factors including the velocity of the water in your area, height, and frequency of your tides/waves. Typically the velocity of your water and amount of waves/tides is crucial in determining the best silt boom for your location.
In addition to this, we also recommend that customers consider a wide range of other factors, including the type of sediment they are looking to contain and the duration of your project. This can help determine the strength that is required for your barrier in order to successfully contain the silt or turbidity in your location.
Type 2 Silt Barrier
The Type 2 Silt Barrier is typically used for areas with mild moving water conditions. This can include areas with a slight to moderate current and/or mild wind conditions and waves. Some places this barrier has been used include:
- Small Tidal Areas
- Inter-Coastal Waterways
Type 3 Silt Barrier
If your conditions are especially demanding, the Type 3 Silt Barrier is the strongest barrier offered. This barrier is designed for tough water conditions, such as areas with a high water velocity or ocean waters. Areas that use this silt boom include:
- Tidal Areas
- Fast-Moving Streams
- Intercoastal Waterways
Silt Barrier Specifications
Fabric: Both the Type 2 and Type 3 Silt Barrier are available in a medium duty and heavy duty fabric material. Barriers can be made with either permeable silt filter panels or impermeable fabric depending on your conditions. If you are dealing with a high amount of silt containment, permeable filter panels can help relieve some of the pressure being placed on the curtain.
Lengths: Lengths for these barriers come in standard sections of 50 or 100 feet. Sections can be connected together to reach desired length. For instance, to reach your requested length of 200 feet, two 100 foot sections can be connected together.
Depths: Depths for the silt boom/barrier are available in any size ranging from 3 to 100 feet. Typically you will want your barrier to sit about one foot from the floor of your water location. However, you will want to allow for additional slack if you will be operating in tidal conditions.