Commentary RE #2: article on structured geomembranes

April 1, 2007  |  News

It takes an “interesting” article (“Using structured geomembranes in final solid-waste landfill closure designs,”) to generate a dozen pained e-mail comments to me even before I received my February/March copy of Geosynthetics! This topic had its beginnings in a paper I had r…
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Commentary RE #1: article on structured geomembranes

April 1, 2007  |  News

To the editor: The February/March 2007 issue of Geosynthetics contains an article on the use of structured geomembranes in landfill final closure designs. The article contains many positive statements regarding polyethylene geomembranes with structured surfaces that are manufactured by the flat-die …
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GMA members see, hear about Army Corps’ progress in New Orleans

February 1, 2007  |  News

By Andrew Aho Last October, I accompanied a GMA delegation that traveled to New Orleans to meet with members of the New Orleans District office of the U.S. Army Corps of Engineers. Our discussion included about a dozen engineers at their just-reopened facility in the city. I was struck by the sense …
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‘Design Squad’ TV show coming on PBS

February 1, 2007  |  News

“Design Squad,” a PBS live-action series, will debut this year. Produced as an educational initiative, its goal is to excite kids about engineering while making it engaging and fun at the same time. “Design Squad” is a new reality competition show consisting of two teams of high-school stude…
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Membrane seams addressed in new ASTM standard

February 1, 2007  |  Products

The increased use of geomembranes as barrier materials to restrict liquid migration created a need for a test method to evaluate the quality of geomembrane seams produced by tape methods. ASTM International Committee D35 on Geosynthetics has met this need with the approval of the new standard D 7272…
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Pinning milfoil to the mat

February 1, 2007  |  Case Studies

The latest effort to foil further growth of milfoil on a pond in Litchfield, Maine, has taken the form of layers of black, geotextile mats. A diver has placed the mats like carpet on the bottom of Upper Pleasant Pond in an area where a group of variable-leaf water milfoil plants was already marked o…
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ECTC’s updated technical manual now available

February 1, 2007  |  Features

A revised and updated guidance document by the Erosion Control Technology Council (ECTC) is now ready for industry professionals. Titled “A Technical Guidance Manual: Terminology, Index & Performance Testing Procedures for Rolled Erosion Control Products,” can be found on ECTC’…
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New officers for ASCE

February 1, 2007  |  News

The American Society of Civil Engineers (ASCE) installed newly elected officers to its board last October. The new board representatives include: William F. Marcuson III, Ph.D., P.E., Hon.M.ASCE, director emeritus of the Geotechnical Laboratory at the Waterways Experiment Station in Vicksburg, Miss.…
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Mountain route flowing now

February 1, 2007  |  Case Studies

Traffic on Highway 330 through California’s San Bernardino Mountains returned to near normal last fall after CalTrans reopened the route to motorists following three months of detours and closures. The route between Highland and Running Springs had been closed off and on while a $7.5 million slope…
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GMA-Mexico offers classes

February 1, 2007  |  News

The Mexico office of the Geosynthetic Materials Association designed and delivered two courses last fall. One was for the Mexican Army’s Departament of Engineering; the other with open enrollment for civilian engineers and academics. The military engineers were very receptive last September to…
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