The object of this contract is to strengthen the Melide – Grancia tunnel along the Lugano Sud – Mendrisio motorway with extraordinary maintenance works to the load-bearing structure and the renovation of banks.
The tunnel has 2 tubes, each 1,727m long, with 2 lanes without an emergency lane. According to the contract, works are to be performed on one tunnel tube at a time, with the night closure of traffic in the tube where works are being carried out and the re-routing of this traffic to the other operational tube with two-way traffic.
When the night closure ends, the tunnel tube where works have been carried out must be reopened.
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