To reduce the risk of flooding by upgrading the creek capacity at critical sections along upper Brown Hill Creek and upgrading specific choke points such as bridges.
To reduce the risk of flooding from Keswick Creek, particularly through Wayville, Keswick, Ashford, Mile End South, Hilton and Richmond.
To reduce the risk of Glen Osmond Creek flooding through Fullarton and Unley.
To enable Brown Hill Creek west of Anzac Highway to convey greater stormwater flows including stormwater diverted from Keswick Creek, and reduce the risk of flooding in western suburbs of the catchment.
To reduce the risk of flooding from Parklands Creek, particularly through North Unley, and to lessen the impact of stormwater flows entering Keswick Creek.
To reduce the risk of Glen Osmond Creek flooding through Fullarton and Unley.
To enable the Brown Hill Creek crossing of the railway corridor at Goodwood to be relocated as part of the Goodwood rail upgrade.