ScourStop transition mat is a biotechnical replacement for hard armor. It is a mechanically-anchored 4 ft. X 4 ft. X .5 inch semi-rigid, polymer mat designed with voids throughout the structure which enable vegetative growth. Transition mats provide mechanical protection over highly erosive areas; like stormwater pipe outfalls, curb outfalls, over-flow structures, and shorelines. Transition mats provide protection against much higher shear stress and velocities than vegetation alone or rock rip rap; and are comparable in performance to Articulated Concrete Blocks.

Elements of the Transition Mat System:

  • Mechanical Protection
  • Reinforces appropriate soil covers
  • Deep anchoring soil stabilization

Mechanical Protection

  • Provides impact resistance, tensile strength and permanent durability against high erosive stresses. The semi-rigid mats conform to soil profiles, uniformly securing solid covers to the ground with 70 pounds of 'ballast'/ 'hold down capacity' per square ft. (7 times more than hard armor) with 10 times less weight on the underlying sub-soil.

Soil Covers

  • Soil is extremely erosive. Some type of best management practice (BMP) cover is required under ScourStop. Typically a soil reinforcement mat (TRM), sod or a combination of both, provides maximum protection for every soil type and condition.

Deep Anchoring

  • With an average of 8 anchors per mat, deep anchoring helps the matt conform to the native topography, securing the mat to the solid in uniform manner.