 Construction will start Spring 2016 and should be completed sometime in 2018.Full operation of the North-South Rail Tunnel will not be achieved until 2023 due to the issues of stabilizing the section of tunnel that collapsed in 2009.The extra cost of approximately 4 million euro is planned to mitigate the negative perception of the NSS project due to the collapse as well as budget increases, late completion (originally planned for 2011) and disruption.