Open invitation to tender, deadline 25.01.2013, for environmental monitoring during detailed design, competition and construction of safety tunnels for the Rofla (1,080 m), Barenburg (1,030 m), Viamala (755 m) and Crapteig (2,170 m) tunnels on N13. Detailed design from April 2013 to December 2015. Start of construction in 2014. More from https://www.simap.ch/shabforms/COMMON/search/searchresultDetail.jsf. Contact USTRA, Bellinzona, tel +41 918206811, fax +41 918206890, e-mail acquistipubblici@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=371070 -2012. 48/12.
