Topic summary
Railway tunnel
Extracted from the Wikipedia article Tunnel.
Double-deck and multipurpose tunnels
Wuhan's Yangtze River Highway and Railway Tunnel is a 2.59 km (1.61 mi) two-tube double-deck tunnel under the Yangtze River completed in 2018. Each tube carries three lanes of local traffic on the top deck with one track Wuhan MetroLine 7 on the lower deck.