Valdivia mayor supports government plans for the sub-river tunnel
...y of Valdivia in the Los Ríos region of Chile says the the economic viabili...Cau Cau bridge continue. https://www.biobiochile.cl/noticias/nacional/region-d...los-proximos-2-anos.shtml https://www.biobiochile.cl/noticias/nacional/region-d...France: Systra buys Spanish Tunnel Engineering company Subterra
...eld of underground design and structures, and increases our presence in Spain and Latin America. With a staff of 100 people in Spain, Colombia, Chile and Peru, Subterra is a globa...
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