In conjunction with the Brown Hill Keswick Creek Stormwater Project, a section of Brown Hill Creek in Forestville was diverted by the Department of Planning, Transport and Infrastructure in 2013 as part of its Goodwood Junction rail upgrade project. The creek has been diverted into a new underground culvert constructed generally along the eastern side of the railway corridor from the south side of Victoria Street, Goodwood to the northern side of the Glenelg tramway, to discharge into the existing Brown Hill Creek within Forestville Reserve.

The Brown Hill Creek Diversion (DPTI Culvert) is outlined in Section 10.7 of the 2016 Stormwater Management Plan.