Geosynthetics-2007 is a hit in D.C.

April 1, 2007  |  News

After more than 1,000 participants and 76 exhibits, more than 60 papers and presentations, 9 short courses, 4 special sessions, 3 keynotes, and 2 panels—after all that in just 4 days, the Geosynthetics-2007 Conference and Trade Show came to a close in Washington, D.C. The Jan. 16-19 event mark…
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Geomembrane raincoat liners in the mining heap leach industry

April 1, 2007  |  Products

By Allan J. Breitenbach and Mark E. Smith Introduction Raincoat liner (RCL) terminology is used in the mining heap leach industry in reference to a temporary exposed geomembrane cover (EGC) that minimizes rain stormwater infiltration into the ore heap fill and diverts cover surface storm runoff to t…
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Geocell, grid, and reinforced-soil in restoring eroded steep slopes

April 1, 2007  |  Case Studies

By Stan Boyle and Kathy Robertson Abstract In October 2003, stormwater overflows from an intense, short-duration storm eroded approximately 20,000 yds.3 of soil from the bottom and side slopes of a ravine between the Tacoma Narrows Bridge and a subdivision near Tacoma, Wash. The erosion ruptured two…
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Multiple-tiered retaining walls

April 1, 2007  |  Case Studies

The Norris Canyon Estates in San Ramon, Calif., east of San Francisco, are gaining a local presence not merely for luxury homes but also for the nearly half-million ft.2 of multiple-tiered retaining walls built throughout its challenging terrain. A location with 1:1 slope ratios and expansive clay s…
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Historic Fort Sheridan implements innovative ‘best-practices’ stormwater and landscape plan

April 1, 2007  |  Case Studies

Five years ago, a housing develoment company needed to prepare a stormwater management plan and design best management practices (BMP) for stormwater management at historic Fort Sheridan. The military base, situated on bluffs overlooking the shores of Lake Michigan in the northern Chicago suburb of …
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A conservative junction-strength requirement

April 1, 2007  |  News

To the editor: Thank you for the article “Junction-strength requirements for roadway design, construction” (Geosynthetics, February/March, 2007), defining and categorizing the use of junction strength as a specifying property for geogrid reinforcements. The excellent summary of performan…
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Further clarifications on GRS construction

April 1, 2007  |  News

To the editor: Thank you for your response to my concern about a photo in Geosynthetics magazine, February-March 2007. While including a photo of the Bowman Road Bridge in the article, “Junction strength requirement for roadway design construction” was done [solely] for aesthetic purpose…
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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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