The tender process is being restarted for the project to drive the Zheleznitsa Tunnel, which will form part of Bulgaria’s Struma Highway. The tunnel project is expected to cost €128 million in all to construct with the work being split into three separate lots. Two of the lots, I and III are smaller packages for the roads at either end of the project, with the most valuable tender, Lot II, being for the €99.2 million deal to construct the tunnel itself. The tender process is being managed by the Bulgarian R