Laserfiche WebLink
PERFORMANCE SPECIFICATION <br />a <br />AME°Rf~c~ly P300 <br />GREEN' <br />The P300 permanent turf reinforcement mat shall be amachine-produced mat of 100% W stable polypropylene fiber. <br />The matting shall be of consistent thickness with synthetic fibers evenly distributed over the entire azea of the mat. The <br />matting shall be covered on the top with black heavyweight UV stabilized polypropylene netting having ultraviolet <br />additives to prevent breakdown and an approximate 0.50 x 0.50 inch (1.27 x 1.27 cm) mesh size. The bottom net shall <br />also be UV stabilized polypropylene, with a 0.625 x 0.625 inch (1.57 x 1.57 cm) mesh size. The matting shall be sewn <br />together on I.50 inch (3.81 cm) centers with UV stabilized polypropylene thread. <br />Slope Design Data <br /> Slo a Gradient S <br />Slo eLen L 53:1 3:1-2:1 _>2:1 <br /><_ 20 ft (6 m) 0.001 0.029 0.082 <br />20 - 50 ft 0.036 0.06 0.096 <br />> SO ft (15.2 m) 0.07 0.09 0.11 <br />Channel Design Data <br />Rou hness Coeffcients <br />Flow De th Mannin 's `n' <br />_< 0.50 ft 0.15 m 0.034 <br />0.50 - 2.00 ft 0.034-0.020 <br />> 2.00 ft 0.60 m O.D20 <br />Values aze approximate, precise values obtained from <br />ECMDS'TM <br />Ammroximate Maximum Flow Velocity <br />Unvegetated = 9 ft/s (2.7 m/s) <br />Ve etated = 16 fi/s 4.9 m/s <br />Maximum Permissible Sheaz Stress* <br /> Short Duration Lon Duration <br />Phase I <br />UNVEGETATED 3.0 Ibs/ft' <br />144 Pa 2.0Ibs/ft' <br />96 Pa <br />Phase 2 <br />PARTIALLY VEGETATED 8.0 lbs/ft= <br />383 Pa 8.0 lbs/ft' <br />383 Pa <br />Phase 3 <br />FULLY VEGETATED 8.0 ]bs/ft' <br />383 Pa 8.0 lbs/ft' <br />383 Pa <br />"Performance values obtained through third party testing at the Texas Transportation Institute, Colorado State University, and Utah State <br />University based on soil lass failure criteria not exceeding 0.50 inches (1.27 cm). <br />Updated 1/2004 <br />