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  1. en.wikipedia.org › wiki › TunnelTunnel - Wikipedia

    12 hours ago · The Big Dig replaced Boston's old badly deteriorated I-93 elevated highway. The Stormwater Management And Road Tunnel or SMART Tunnel, is a combined storm drainage and road structure opened in 2007 in Kuala Lumpur, Malaysia. The 9.7 km (6.0 mi) tunnel is the longest stormwater drainage tunnel in South East Asia and second longest in Asia. The ...