Toquepala Copper Mine

The Toquepala Mine is situated in the Andes Mountains at 3,220 meters above sea level, in the Southernmost Region of Peru. The topography of the site presented a unique design, engineering and installation challenge. The 115 meter dome had to be built along the side of the mountain, with a stepped foundation, meaning that up to ring 11 of one side of the dome’s wall was the actual side of the mountain. From ring 11 up to the apex, the full steel circumference of the dome was enclosed and completed.