Greystanes Creek
Greystanes Creek, also known as Girraween Creek, is an urban watercourse that is part of the Parramatta River catchment, and is located in Greater Western Sydney, New South Wales, Australia.
Both Greystanes Creek and Pendle Hill Creek are tributaries of Toongabbie Creek which becomes the Parramatta River. The creek lies predominantly in the suburbs of and. A section of the creek is channelised as part of a flood mitigation project.
Course
The creek's first source lies at Driftway Reserve in Pemulwuy to the south, where it streams north to Pemulwuy Lake, the second source of the creek. From the lake, the creek then heads northeast to Toongabbie, flowing below Great Western Highway and Western Motorway. Going north, the creek passes through the golf course, crossing beneath the North Shore & Western Line and Cumberland Line near Toongabbie railway station. At its mouth, the creek merges with Pendle Creek and then joins Toongabbie Creek.Geography
The Greystanes Creek catchment area lies within the local government areas of Blacktown and Cumberland, and cover an area of. The creek meets with Pendle Hill Creek around metres upstream of the confluence of Pendle Hill Creek and Toongabbie Creek. The catchment zones of the creek are usually flat apart from the upper reaches which are defined by undulating hills. The upper limits of the creek are predominantly open space, including land occupied by the CSIRO and the Fox Hills Golf Club.The area is urbanised north of the golf course, with the creek streaming through a floodplain that is around in width. A small riparian zone is present alongside of the creek, though most of the floodplain is a verdant meadow. The creek often floods severely during heavy rainstorms, where it occasionally overflows onto Station Road. Flood risk zones are from Portico Plaza Shopping Centre to Fitzwilliam Road and near Portia Road. Despite its name, the creek does not flow through the suburbs of Greystanes and Girraween.
A rehabilitated part of the creek flows between the North Shore & Western Line and Station Road, and it features a rock lined and vegetated channel, with rock riffles
placed to offer diverse habitat and affiliated water quality advantages through flow aeration. Bank protection is provided to safeguard infrastructure and to restrain bank retreat into the adjacent Bowling Club area. Downstream of Station Road, the creek is turned into a concrete channel with grassy berms to the border of the corridor limits. The channel then heads north to the confluence with Toongabbie Creek.