560 tonnes of new rail, 7,000 new sleepers and 20,000 tonnes of new track ballast is being stored ready for the modernisation work, which will see the Metro's longest line closure for more than 30 years.
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Eddie Tron, from Gateshead, and Mark Quilliam were both given lengthy sentences. Tron's wife Susan was jailed for nine months.
Improvements will be made to the East Coast Main Line as part of a £6million investment but passengers have been warned of disruption.
Inspectors rate a Sunderland school as inadequate, finding "unsafe practices" in how staff control pupils' behaviour and discipline them.