CSI Specs

CSI Specifications

AASHTO M288-15 Survivability Class
Application CLASS 1
CLASS 2
CLASS 3
Woven Nonwoven Woven Nonwoven Woven Nonwoven
(elongation <50%) (elongation >50%) (elongation <50%) (elongation >50%) (elongation <50%) (elongation >50%)
Subsurface Drainage
% Fines
< 15% FW404 180N FW404 160N FW404 140N
15% to 50% N/A 180N FW700 160N N/A 140N
> 50% N/A 180N FW700 160N N/A 140N
Stabilization 600X 180N 600X 160N 500X 140N
Separation 600X 180N 600X 160N 500X 140N


Permanent Erosion Control
% Fines


< 15% FW404 180N FW404 160N FW404 140N
15% to 50% N/A 180N FW700 160N N/A 140N

> 50%

N/A 180N FW700 160N N/A 140N


Paving Fabrics MPV500
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