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Urban road tunnels
07 November, 1970
Tunnel to join artificial island to Japanese mainland
31 July, 1970
Bureau of Mines research programme in USA
31 July, 1970
Japan goes underground for more travelling space
31 July, 1970
Hong Kong cross harbour tunnel progress
31 July, 1970
Maintaining the tunnels of French railways (SNCF)
31 July, 1970
Pumped storage CEGB investigations in Wales
31 July, 1970
Post OECD Washington conference tours in USA
31 May, 1970
Applying waterproof sheetings as tunnel linings by machine
31 May, 1970
Blackwall and Rotherhithe Tunnels
31 May, 1970
Channel Islands Jersey Fort Regent road tunnel completed
31 May, 1970
Bulkhead doors in South African mine
31 May, 1970
Cutting M40 motorway route
31 May, 1970
Competing demands on resources - channel tunnel
31 May, 1970
Hartlepool outfall tunnel
31 March, 1970
Precise measurement of tunnel diameters
31 March, 1970
Subway car order, Toronto subway extension
31 March, 1970
Sicily tunnel link with Italy
31 March, 1970
Third Mersey tunnel started
31 March, 1970
McAlpine win order from France for two rock tunnellers
31 March, 1970