Geonet composite for Red Willow Dam

October 4, 2011

The U.S. Bureau of Reclamation (BR) has awarded a $15.3 million contract to SEMA Construction Inc. for rehabilitation of the Red Willow Dam in south-central Nebraska. Problems at the dam have been a concern since discovery of a sinkhole and cracking through the dam’s embankment in 2009. SEMA, Englewood, Colo., is contracted to: excavate the …

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The role of geosynthetics in the new New Orleans levees

October 1, 2011

By Angelle Bergeron Introduction Geosynthetic materials are playing a critical role in providing New Orleans with its best flood protections ever. “We couldn’t have delivered this work by 2011 without geosynthetics,” said Richard Varuso, deputy chief of the geotechnical branch of the U.S. Army Corps of Engineers’ New Orleans District (USACE/NOD). “Geosynthetics save construction time.” …

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On the waterfront

A plan to rework the Don River Park near downtown Toronto uses geotextile-wrapped wick drains to remediate soil and drainage problems By Adam Regn Arvidson A new neighborhood is growing on 80 acres (32 hectares) of former industrial land near downtown Toronto. Called the West Don Lands, it will be home to 6,000 housing units, …

Firestone unveils new water management system

August 29, 2011

Firestone Specialty Products is now showcasing a “total system approach” to water management solutions, according to an Aug. 23 press release. Total Water Management Solutions helps building owners, landscape architects, civil engineers, specifiers, and municipalities maximize their water resources and achieve hydrologic responsibility, the release said. A key component to Firestone’s family of water management …

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Wick drains in action at port project

June 24, 2011

By Angelle Bergeron The largest and deepest marine installation of wick drains in the world is ongoing at the Port of Virginia. Mark Palmatier, president and owner of U.S. Wick Drain (Leland, N.C.) said he is working on a project that is the largest and deepest marine installation of wick drain in the world, and …

Geotextile–drainage grid combo earns praise

June 10, 2011

A new research report cites geotextiles in conjunction with a drainage grid surpass traditional gravel drainage for irrigation, water use, turf health Research was recently completed at Texas A&M University to analyze the widely accepted United States Golf Association (USGA) recommendations for physical properties of root zone mixtures when designing a putting green using a …

Accelerated flow testing of geosynthetic drains

June 1, 2011

By Sam Allen Introduction Most planar geosynthetic drains consist of a polymeric core with or without a geotextile bonded to one or both sides. The core, whether used by itself or in association with a geotextile, forms the main fluid transmission medium. Synthetic cores used in North America typically take the form of geonets that, …

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Drainage systems in MSEW

October 1, 2010

From the GMA Techline Question on the Geosynthetics magazine article: “Pipeless drainage system” (April 2008) Commenter: Carlos Title: Drainage What is the most used design method for drainage systems in MSEW with geosynthetics? Or what can I do for designing a system for drainage in the MSEW? Reply: The question is what type of drainage …

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Cameron Airpark combines old and new technologies on its ‘streetways’

By Ray Myers Background Cameron Airpark Estates, about 20 miles east of Sacramento, Calif., is a unique residential community and airport. In 1950, Larry Cameron, a former champion rodeo rider and successful auto dealership entrepreneur, envisioned a place where residents could play golf, swim in a lake, and even enjoy the benefit of their own …

New Tendrain II from SynTec

September 23, 2010

Tendrain geonets were introduced more than a decade ago, offering performance provided by patented triplanar technology. In a press release today, SynTec said it has expanded on its history with Tendrain, Tenflow, Tenseal, and Roadrain with the new Tendrain II. Within a year of operation as SynTec, a Baltimore-based manufacturer, it is billing its new …