Open invitation to tender, deadline 28.05.2012, for the optimization of the regime works and for groundwater hydraulic draining in the bi-tube Colle Giardino (4,347 m/4,242 m) tunnel, at km 70,900 on SS 4 Via Salaria, Rieti province. Contract value EUR2,461,909, duration 240 days. Send tenders to Anas, Lazio Road Departmente, Rome. Visit
http://www.stradeanas.it/index.php?/appalti/rilevanza_comunitaria/dettaglio/id/49506. 18/12.
