Spec InterpretationAlaska
State of Alaska
Department of Transportation Specifications
December, 2011
AKDOT
Alaska DOT has a Standard Specification for geotextiles. However, individual cities, bureaus and agencies will have their own specifications. According ot the 2004 Standard Specifications, AASHTO M-288 is used as a guideline with modifications for Permittivity. There is also a draft of a 2007 Standard Specifications that narrow product usage a bit more. However, it appears 2004 is what is currently being used.
| SPECIFICATION | APPLICATION | NON WOVEN | WOVEN | COMPOSITE | GRID |
|---|---|---|---|---|---|
| 729-2.01 | Separation AASHTO Class 1 (modified) | US 205NW | US 315 | -- | -- |
| 729-2.01 | Separation AASHTO Class 2 (modified) | US 160NW | US 250 | -- | -- |
| 729-2.01 | Separation AASHTO Class 3 (modified) | US 120NW | US 200 | -- | -- |
| 729-2.01 | Stabilization AASHTO Class 1 (modified) | US 205NW | -- | -- | -- |
| 729-2.01 | Stabilization AASHTO Class 2 (modified) | US 160NW | -- | -- | -- |
| 729-2.01 | Stabilization AASHTO Class 3 (modified) | US 120NW | -- | -- | -- |
| 729-2.02 | Subsurface Drainage AASHTO Class 1 | US 205NW | US 230 | -- | -- |
| 729-2.02 | Subsurface Drainage AASHTO Class 2 | US 160NW | US 230 | -- | -- |
| 729-2.02 | Subsurface Drainage AASHTO Class 3 | US 120NW | US 230 | -- | -- |
| 729-2.02 | Erosion Control AASHTO Class 1 | US 205NW | US 230 | -- | -- |
| 729-2.02 | Erosion Control AASHTO Class 2 | US 160NW | US 230 | -- | -- |
| 729-2.02 | Erosion Control AASHTO Class 3 | US 120NW | US 230 | -- | -- |
| 729-2.03 | Paving Fabric AASHTO | US 100P | -- | -- | -- |
More resources may be found on the web:
State QPL information: