Geography of Sheffield (Totley Brook passes south of Totley and meets Old Hay Brook at Needham's Dyke). The Sheaf flows northwards to join the River Don near Blonk Street Bridge in the city centre. This lower section of the River Sheaf together with the River Don, between the present Blonk Street and Lady's Bridge, formed part of the perimeter of Sheffield Castle. Porter Brook's source is just inside the Peak District National Park, to the west of the city, at Clough Hollow, also near Ringinglow. From here it flows eastward to meet the Sheaf, at a point now located underneath Sheffield Midland Station.
University of Sheffield Bioincubator and University Health Centre were also refurbished. A new six-storey building, the Diamond, was opened on 28 September 2015. In February 2016, the university started to work with Sheffield City Council to transform public spaces around the campus. The £8 million project includes building and improving pedestrianisation, crossings, cycle routes, as well as greening the campus. The University of Sheffield is not a campus university, though most of its buildings are located in fairly close proximity to each other. The centre of the University's presence lies one mile to the west of Sheffield city centre, where there is a