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Stormwater & Sediment Control Wattles

Straw Wattles for Sediment Control

arrow bulletFUNCTIONS

  • Sediment Control
  • Moisture Retention
  • Prevent Slope Erosion


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 in channels. They work in the same manner as silt fence, by ponding water and 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 and stormwater runoff. Wattles can be placed and staked along the perimeter of newly constructed or disturbed slopes. Their use to capture and retain sediment on the slopes is a best management practice (BMP).

Fertile topsoil, organic matter, and native seeds are trapped behind Straw Wattles, and provide a stable medium for germination. Straw Wattles also retain moisture from rainfall, aiding 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 installed by staking in place, and 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, and sediment load
  • Low-cost solution to sheet and 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 retaining moisture for vegetation

arrow bulletAPPLICATIONS

  • 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 grassy waterways


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