The GMA Techline

April 1, 2019

Vegetation causing gases under geomembrane? Q: I have a site where we are installing a high-density polyethylene (HDPE) liner in an existing pond. Because of some residual heavy metals in the top layer of soil, I would like to strip off the top 3–6 inches (7.6–15.2 cm) of soil and vegetation. Alternatively, we could mow and …

Yeager Airport: Deconstruction and reconstruction of the side of a mountain

Yeager Airport is located on top of a series of leveled mountains in Charleston, W.Va. Completion of the original airport construction in the 1940s required 9 million cubic yards (6.9 million m3) of soil and rock earthwork (Keller 2017). In 2005, due to Federal Aviation Administration (FAA) safety requirements, it was necessary to construct a …

Panorama

GMA honors U.S. senator as ‘leader of the year’ The Geosynthetic Materials Association (GMA) honored Sen. Sheldon Whitehouse, D–R.I., with the GMA Leader of the Year Award during the fall Lobby Day in Washington, D.C., on Nov. 14, 2018. “I’m honored to be recognized in this way by the Geosynthetic Materials Association,” Sen. Whitehouse said, …