Our Geotex runway is 8 years old this July. It could easily go 10 years or more but we are having some erosion problems. We are going to replace it this year. Geotex was made by Phillips Petroleum. They no longer make this product. I have a sample of the Pro-Pex product. It looks and feels like the same stuff.
If there is any interest I would like to make this post a step by step with cost and pictures of our project. I would also answer any question along the way. If all goes as planed we would start next month. We are going out this weekend with a transit to decide where the ditches and terraces need to be.
What we have now is a 43'x500' runway. Joining it are three 12'x100' taxi ways with a 12'x200' ramp. W are only replacing the runway. The taxi and ramp area are fine. I will post a pic from Google Earth when I get home. My work computer will not handle the Google Earth web site.
So let me know if this is something you guys would like to see and hear about.

David