Skip to main content

AASHTO M288 Geotextiles

American Association of State Highway and Transportation Officials (AASHTO) provides geotextile requirements for all categories:

  • Subsurface Drainage
  • Separation
  • Stabilization
  • Permanent Erosion Control
  • Paving Fabric
  • Subgrade Enhanced
  • Temporary Silt Fence
AASHTO M288-21 Product Selection Guide
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% EP-404
NTPEP Listed		 N08
NTPEP Listed		 EP-404
NTPEP Listed		 N06
NTPEP Listed		 EP-12
NTPEP Listed		 N04.5
NTPEP Listed
15% to 50% N/A EP
NTPEP Listed		 EP
NTPEP Listed
> 50% N/A
Separation HD
NTPEP Listed		 N08
NTPEP Listed		 GS-250
NTPEP Listed		 N06
NTPEP Listed		 GS
NTPEP Listed		 N04.5
NTPEP Listed
Stabilization HD
NTPEP Listed		 N08
NTPEP Listed		 GS-250
NTPEP Listed		 N06
NTPEP Listed		 GS
NTPEP Listed		 N04.5
NTPEP Listed
Permanent Erosion Control
% Fines
< 15% EP-404
NTPEP Listed		 N08
NTPEP Listed		 EP-404
NTPEP Listed		 N06
NTPEP Listed		 EP-404
NTPEP Listed		 N04.5
NTPEP Listed
15% to 50% N/A EP
NTPEP Listed		 EP
NTPEP Listed
> 50% N/A
Paving Fabric Type 2 OLI
NTPEP Listed
Temporary Silt Fence Supported Non-Supported
Woven Woven Nonwoven
Elongation < 50% Elongation < 50% Elongation ≥ 50%
SF-90
NTPEP Listed		 SF-D
NTPEP Listed		 N06
NTPEP Listed
Subgrade Stabilization Class 4 4A 4B 4C 4D
Woven Geogrid
HPG-57,HM-58
NTPEP Listed		 SX3030 SX2020,RX1200 SX1515,RX1100