Designers need to know TRM performance limits in both vegetated and unvegetated conditions. The GreenArmor® System has been comprehensively evaluated at the world renowned Colorado State University (CSU) Hydraulics Laboratory. All testing was conducted according to the ASTM D6460-06 protocol—“Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Earthen Channels from Stormwater Induced Erosion.