6th Holcim Awards 2020/21

94 The project proposes the reintegration of a roadway and a river through a new green infrastructure that incorporates multi-modal transportation and public recreation. Frederick Law Olmsted’s Emerald Necklace was a pioneering model of urban green infrastructure from the 1880s that has been fragmented by elevated highways built in the last century. This urban operation restores the Charlesgate green area as a critical link in Boston’s regional park system across 1km of new shared-use pathways, over 20km of reconnected greenway and 300m of restored shoreline. The requalification of the area includes new pathways and mobility connections that also enable roadway viaduct maintenance access for lift and vacuum truck, public areas with rain gardens for roadway water runoff storage and treatment, as well as habitat for Holcim Awards Gold 2014 North America Emerald Gateway Symbiotic urban green infrastructure belt Boston, USA Br nze 2020 North America Global Holcim Awards finalist update page 124

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