Wall Dimensions & GEOWEB Green Wall Attributes • Wall length: 1,500 feet; Wall height: 5 to 12 feet • Open fascia cells allow infiltration of stormwater. • Green fascia panels blend with natural environment. • Flexible wall performs well in soft soil environments; conforms well to a waterway’s geometry. • The GEOWEB HDPE material is unaffected by water contact. Performance Update Since its installation in 2012, the GEOWEB green wall continues to provide vital protection to the Southport ATW plant and wastewater-processing pond from major storm events. Significantly more economical than the U.S. Army Corps of Engineers’ (USACE) conventional riprap solution, the GEOWEB walls are a practical alternative for levee applications. With native vegetation, the GEOWEB levee wall proved to be an attractive solution that effectively minimized environ- mental and permitting impacts. Living Green Walls + Low Impact Development An attractive alternative to MSE block walls or riprap, walls built with the GEOWEB geocells offer a green aesthetic and low-environmental impact approach to designing retaining walls. The GEOWEB Retaining Walls conform well to landscape contours, are resistant to environmental degradation, and install 25-30 percent faster than MSE block walls. The GEOWEB System also offers design flexibility for a variety of wall configurations, including gravity, reinforced, and steeped slopes. Create Strong, Long-Lasting Mechanical Connections Using the New ATRA® Wall Key The new ATRA Wall Key is the most effective device for connecting the GEOWEB Retaining Wall sections, ensuring the long-term success of your project. Made of non-reactive, chemically inert high-density polyethylene, the ATRA Wall Key provides a more secure and permanent mechanical connection over staples or zip ties, and they are the only geocell connector specifically designed for use in exposed wall face applications.
The innovative ATRA® Wall Key includes an in- tegrated washer at the base of the handle to provide coverage of the I-slots, frictional barbs for an improved interlock with the GEOWEB sec- tions, and an ergonomic handle with S-shaped contouring for ease of installation. Formulated to withstand weathering and ultra- violet radiation, the ATRA Wall Keys will not cor- rode or photodegrade, even when exposed to harsh environments. Securing sections with the ATRA Wall Keys is faster than using staples or zip ties, requires no tools, and can be completed by one installer with one easy turn. Design Support for Retaining Walls Presto Geosystems offers fast and easy-to-use resources and tools for designing GEOWEB® Re- taining Walls. Let our Design Engineering Team prepare a complimentary project evaluation for your next project. We also offer free licenses for our GEOWEB® MSE Design software for retaining wall applications.
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October 2022 csengineermag.com
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