Straw Wattles for Sediment Control
Wattles are flexible, cylindrical Sediment Retention Fiber Rolls (SRFRs) comprised of various types of compressed matrixes, designed to reduce hydraulic energy and filter sediment-laden stormwater runoff on slopes and also in channels. They work in the same manner as silt fence, by ponding water as well as letting the sediment fall to the ground while the water slowly passes through the wattle. Straw wattles are an effective and economical alternative to silt fence and straw bales for sediment control as well as stormwater runoff. Additionally, wattles are placed and staked along the perimeter of newly constructed or disturbed slopes. Their use to capture as well as retain sediment on the slopes is a best management practice (BMP).
Fertile topsoil, organic matter, and also native seeds are trapped behind Straw Wattles, and additionally provide a stable medium for germination. Straw Wattles also retain moisture from rainfall, and aid the growth of tree seedlings planted to their up-slope side. Straw Wattles are available in various lengths and diameters to meet different project needs. They are staked in place, and also can be used individually or tied together to achieve any desired length.
Advantages of Straw Wattles Include:
- Increased weight per linear foot for less resistance to movement from wind, water, as well as sediment load
- Low-cost solution to sheet and also rill erosion problems
- Replaces silt fence or straw bales on steep slopes
- Lasts up to two years
- Stores moisture for vegetation planted immediately up-slope
- The matrix and trapped sediment incorporates into the soil over time, adding organic material to the soil and additionally retaining moisture for vegetation
- Along the perimeter of most any project with disturbed land
- Active Construction Sites
- Perimeter control; economical alternative to silt fence
- Around construction area storm drains
- Slopes, swales and also grassy waterways