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
Channel Tunnel Act 1987 at Heathrow Airport. Channel Tunnel Act 1987 The Channel Tunnel Act 1987 c.53 is an Act of Parliament which authorised the construction of the Channel Tunnel between the United Kingdom and France in accordance with the Treaty of Canterbury, which was signed in 1986. Section 2 of the Act forbade any public subsidy of the project. This Act enables to be written Statutory Instruments: For sea-related matters, see the Nationality, Immigration and Asylum Act 2002, and the Nationality, Immigration and Asylum Act 2002 (Juxtaposed Controls) Order 2003. The Immigration Act 1971 allows the search of vehicles and the control checkpoint