in association with Gifford. The bridge's main span is when open and provides a wide navigation channel accommodating ships' superstructures up to in height. The developers specified it to be "a unique and memorable landmark". Its visibility is created by a curved bridge deck with an offset pivot mast and array of supporting cables in a fan or sail shape. It has seating benches and is lit at night. The bridge, constructed with funding from the Northwest Regional Development Agency, is the final link in a circular walking route connecting the development with The Lowry and Imperial War Museum North. It was officially opened by Rowan Williams and John Sentamu, the Archbishops of Canterbury and York, and was opened to the public in May 2011 after landscaping works were completed. The development is powered by a trigeneration energy plant producing electricity for cooling and heating using water from the ship canal. It is more than twice as efficient as conventional grid electricity and helped the development gain BREEAM sustainable community status. The communications network is one of the most advanced in the world, with more than 20 million metres of fibre-optic cable capable of delivering the internet speeds required for media production. Critical reception Architects Sheppard Robson won several awards for their interior design of Quay House for BBC North, including the British Council for Offices Award and the AIT Award. The engineering group Ramboll received recognition for its design of the Salford Quays footbridge, which was praised as "a graceful and well engineered bridge [...] a delightful testament to the art of structural engineering". The bridge designers won the British Constructional Steelwork Association's 2012 Structural Steel Design Award and a North West Civil Engineering Award from the Institution of Civil Engineers. The architecture at MediaCity was received unfavourably by Building Design magazine, which awarded the development with the 2011 Carbuncle Cup for Worst New Building. Owen Hatherley writing in The Guardian also criticised the development, describing it as "an enclave, easily closed off from the life of the rest of the city". Tenants BBC Approximately BBC staff are employed at MediaCityUK. In July 2010 it was announced that the BBC Breakfast programme would move to Salford Quays. It was claimed that the development will create up to jobs and add £1bn to the regional economy over 5 years. In 2009 the BBC estimated that moving to Salford would cost