CockburnCoast - Western Australian Planning Commission

CockburnCoast
Figure 6.1: Topography map
Chapter 6
Site analysis
6.1 Environment
6.1.1 Climate
The Cockburn coast area has a Mediterranean climate with hot, dry
summers and cool, wet winters.
The average annual maximum temperature is 24°C, but this varies
between 31°C in February and 18°C in July.
The average annual rainfall is 887 mm per year, of which
approximately 85 per cent, or 750 mm, falls between May and
October. The annual average pan evaporation is 1671 mm. Rainfall
exceeds evaporation for four months of the year, between May and
August.
6.1.2 Landform and topography
The site is dominated by the parallel features of the coastline and a
ridgeline, which rises approximately 1.5 kilometres inland from the
coast. The Cockburn coastline forms the west boundary of the site.
The undeveloped coastal reserve area consists of an elevated
primary dune approximately 5 metres Australian Height Datum
(AHD) with a swale and secondary dune in some sections. The land
that extends behind the dunes is relatively flat over much of the
Cockburn coast until the ridge (City of Cockburn 2001).
The topography of the land west of Cockburn Road generally
ranges between 6-8 metres AHD. The area around the old South
Fremantle landfill site (now in part supporting the Fremantle Holiday
Village) rises to an elevation of approximately 20 metres AHD and
the land behind the South Fremantle power station is mapped at an
elevation of 12 metres AHD (Perth Groundwater Atlas, 2004). Figure
6.1 details the topography of the project area.
78 district structure plan