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Test runs for long-awaited undersea Marmaray project delayed The test runs for the long-awaited undersea Marmaray tube project, which had been announced earlier as scheduled to take place on Friday, have been delayed by the Transportation, Maritime Affairs and Communications Ministry. Marmaray project in numbers *Total line length: 76.3 km *Above-ground line length: 63 km *Length of railway in Bosporus crossing: 13.6 km *Length of tunnel boring: 9.8 km *Total length of cut-cover tunnel: 2.4 km *Number of above-ground stations: 37 *Number of underground station: 3 *Station height: 225 km (minimum)
