Development And Growth

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Inside the Apennines

Inside the Apennines

Deep in Liguria’s Apennine Mountains, the Terzo Valico dei Giovi has reached 96% of excavation: the new high-speed rail line — home to the longest railway tunnel in Italy — will link the port of Genoa...

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In Seattle, the Tunnel That Holds Back the Rain and Protects the City from Floods

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The River’s Lung

The River’s Lung

A symbol of urban sustainability, the Big Pipe is the tunnel that protects the Willamette River in Portland from combined sewer overflow (CSO): it captures wastewater and stormwater and sends them to ...