Marmaray construction bids due

TURKEY: Prequalification bids are due by September 17 for construction of Istanbul's Marmaray tunnel. As well as the 1·8 km double-track submerged tube under the Bosporus linking Eminonu on the European shore with Uskudar on the Asian side, there will be 11·5 km of bored tunnel forming an underground route ...

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