 More than AU$500-million-worth of major construction was under way in 2007.Major projects include the $150-million Westfield Geelong expansion works, involving a flyover of Yarra Street, the city's first Big W store, and an additional 70 new speciality stores; the $37-million Deakin Waterfront campus redevelopment, and the $23-million Deakin Medical School; the $50-million Edgewater apartment development on the waterfront; a number of multimillion-dollar office developments in the CBD; and a new $30-million aquatic centre in Waurn Ponds.Major developments within Geelong are advocated by the region's formal alliance, G21 Geelong Region Alliance.