Manufacture of formwork for piers with a maximum height of 16 meters, requested for the development of the Gerediaga-Elorrio highway of 6.4 km, in Vizcaya. In total, the route has more than 30 piers whose implementation was complex in certain sections of the route.

The steel formwork for the piers is made of high resistance steel for better performance on site. It was specially crafted to accomplish a very complex concrete geometry. Steel sheet development and roll process were the key factor on this work.