We just got involved with a project where a concrete retaining wall is partially complete, with the footing completed but not the stem. Due to poor coordination, a 54 inch pipe has been installed under and perpendicular to the footing, with the top of pipe about 2 ft below the bottom of...
So basically for my flexible pavement design per the AASHTO method (DARWin anaylysis), I can't plug in any structural coefficient for the pervious asphalt pavement; I am completely relying on the underlying aggregate for stability.
I am performing an AASHTO pavement design utilizing Structural Number (SN). I am looking for a resource that provides a typical structural coefficient for pervious paving. Typical pavement coefficients are in the 0.4-0.44 range, but I can't find a coeff. for pervious pavement. [afro]
