Construction of Calgary's new Central Library reached another milestone Tuesday as the project's second phase was completed with the installation of the final steel truss. To commemorate the installation of the final beam, Calgarians were invited to sign and write on the massive piece of steel. "Now we are finishing the installation of the system of massive steel trusses that form the library's structural skeleton," Brown said. Weighing over 9,000 kilograms, the final truss measures 13.4 metres long by half a metre wide and 1.2 metres high. Each beam is one of five, cross-braced steel trusses which form part of the building's skeleton.

Source: CBC News March 22, 2017 00:22 UTC