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Channel Tunnel - Wikipedia
Channel Tunnel | Description, History, Construction, & Facts
Channel Tunnel: Construction of the World’s Longest Underwater Tunnel
How the Channel Tunnel Was Built and Designed - ThoughtCo
A Timeline of the Building of the Chunnel - ThoughtCo
How the world's longest underwater tunnel was built - YouTube
How The Channel Tunnel Works — Practical Engineering
Channel Tunnel, a Look at Who Built the Chunnel - Bechtel
The Channel Tunnel - Institution of Civil Engineers (ICE)