Dublin Corporation commissioned Santiago Calatrava, the world's leading bridge designer, to design a new Liffey crossing at Macken Street - halfway between the Matt Talbot bridge and the East Link bridge. The brief called for "a landmark structure of unmistakable modernity and with a unique character that would provide a symbol at the maritime gateway of Dublin, similar to the manner in which the Ha'penny Bridge has become an icon for the city". Delayed and beset by appeals from local inhabitants, the construction has finally gone to tender, almost a year after another bridge by Caltrava opened on the Liffey Quays. According to Etenders.gov.ie, "Dublin City Council is seeking Requests to Participate from suitably qualified bridge contractors for the construction of a new bridge across the River Liffey at Macken Street. The bridge is cable stayed with a curved inclined steel pylon. The bridge shall be capable of opening by way of a rotation mechanism housed in the base of the pylon."