Swissmill Tower
The Swissmill Tower, also known as Kornhaus, is the tallest operating grain elevator in the world. Standing at , it is the second-tallest building in the Swiss city of Zürich. History and description The Swissmill Tower is a grain elevator close to Limmatplatz in Zürich. It was built near the Migros Tower, replacing a former grain elevator after the city voted in favor of building a larger silo. The original mill (Kornhaus) was built in 1843 on the same site. The site required piles built to a depth of in the bedrock of the Limmat Valley. The increase of its height to was done by slipforming. This required as many as 60 construction workers processing concrete in three shifts around the clock. The construction took place in two stages. The first phase was completed in early July 2015. The second began in September 2015, and end in April 2016. Mill operations continued during construction. The works were carried out by Implenia. Significance At , the Swissmill Tower is the tallest operating grain elevator in the world. The second tallest, the Schapfen Mill Tower in Ulm, Germany, is tall excluding the antenna. The tallest grain elevator ever constructed, the Henninger Turm,