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More breakthroughs on SS77

General contractor Val di Chienti has reported new breakthroughs on SS77, Quadrilatero Marche Umbria project. On 07.11.2012 breakthrough was achieved on the 2,100 m south tube of Cupigliolo tunnel, in Casette di Cupigliolo at Foligno. On 23.11.2012 the 2,126 m north tube of Muccia tunnel in Macerata province broke out some three weeks after the 2,223 south tube was completed. For more, click here and it/116. Visit www.quadrilaterospa.it. 48/12.