Landscape Contractor / Design Build Maintain

MAR 2017

LC/DBM provides landscape contractors with Educational, Imaginative and Practical information about their business, their employees, their machines and their projects.

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>> The first curb-to-curb permeable street in the Bay Area not only provides a safe and beautiful transportation route in the city of Berkeley, but also infiltrates stormwater, filters pollutants, reduces run - off and improves the health of surround- ing trees. Driven by scientific analysis, in- depth research and exhaustive planning, a section of Allston Way was transformed from a deteriorated asphalt surface into a 29,000 square-foot environmentally friendly permeable interlocking concrete pavement (PICP) roadway made of Eco- Priora pavers from Pavestone. Before the first pavers were installed by European Paving Designs (EPD), concerns from city engineers and arborists about the excavation had to be addressed. The project designers, AECOM and Applied Research Associates, Inc., collaborated on a solution that reduced the excava - tion depth about one foot by placing an 8" layer of high density polyethylene cel - lular confinement filled with aggregate as part of the subbase. This approach cre - ated a healthy co-existence between the new paver surface and the existing un - 8 LC DBM Top In the Bay Area city of Berkeley, Calif., European Paving Designs installed the city's first permeable roadway. The 29,000 square foot permeable area of Allston Way was installed by a seven-man crew in two phases over the course of six months. Above Two colors of the permeable interlocking concrete pavers define the roadway lanes as well as pedestrian crossing zones. The yellow and white pavers are custom colored to contrast with the reddish-orange and charcoal 'Eco-Priora' pavers from Pavestone. "The pavers are installed in a herringbone pattern, except for the striping," said Randy Hays, CEO of European Paving Designs. "There's no maintenance and you don't have to go out there and paint it." Berkeley's First Permeable Street Renews Old Roadway By Chad Corley, Pavestone HARDSCAPES (Continued on page 10)

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