Main Street Tunnel technique, whereby the tunnel was excavated, the concrete poured, and the structure buried, on top of which the canal channel was built. This avoided costly boring beneath an active waterway; the structure cost C$11 million. This price was split 50–50 between Transport Canada and the St. Lawrence Seaway Authority. The tunnel opened with a parade featuring the Welland Police pipe band and various officials on the morning of May 20, 1972. Main Street Tunnel The Main Street Tunnel, located in Welland, Ontario, Canada, is an underwater tunnel, carrying Niagara Road 27 and the unsigned designation of Highway 7146 under the
North Cape Tunnel North Cape Tunnel North Cape Tunnel () is one of the longest subsea road tunnels in Norway. It is located in Nordkapp Municipality in Finnmark county in the far northern part of Norway. The tunnel takes the European route E69 highway under the Magerøysundet strait between the Norwegian mainland and the large island of Magerøya. The tunnel was built between 1993 and 1999, along with the Honningsvåg Tunnel. The tunnels were built to connect the mainland of Norway with the town of Honningsvåg and the tourist attraction at the North Cape. The tunnel was officially opened on 15 June 1999