H3A Silvaplana ring road - tunnel
Large-scale projects
![](/sites/default/files/styles/project/public/project/image/2020-03/20160804_134452.jpg?h=ed9c3b80&itok=c4iwaLA3)
![](/sites/default/files/styles/project/public/project/image/2020-03/20150619_110307.jpg?h=865ed999&itok=NpCQHJMc)
![](/sites/default/files/styles/project/public/project/image/2020-03/20180621_110648_resized.jpg?h=865ed999&itok=eoMjWnzH)
![](/sites/default/files/styles/project/public/project/image/2020-03/20150507_150613.jpg?h=971652d4&itok=PGGotvDx)
Work description
Road tunnel to bypass the village of Silvaplana, with a total length of 719 m and an open-cut length of 30 m
Download pdfDuration: 04.2015 – 08.2018
Amount: CHF 30,000,000 (excluding VAT).
Customer: Canton Grigioni