Environmental Values Associated with the Alignment of Roe Highway (Stage 8)
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Environmental values associated with the alignment of Roe Highway (Stage 8) A report by the Environmental Protection Authority under Section 16(j) of the Environmental Protection Act 1986 Environmental Protection Authority Perth, Western Australia Bulletin 1088 February 2003 ISBN. 0 7307 6742.4 ISSN. 1030 - 0120 Contents Page 1. Introduction and background ......................................................................... 1 1.1 The purpose of this report....................................................................... 1 1.2 Background............................................................................................ 1 1.3 The role of the EPA................................................................................ 5 2. Environmental values and likely impacts ....................................................... 5 2.1 Wetlands................................................................................................ 6 2.2 Vegetation and Flora.............................................................................10 2.3 Fauna ....................................................................................................13 2.4 Ecological Linkages..............................................................................13 2.5 Aboriginal Heritage...............................................................................14 2.6 Residential Amenity..............................................................................15 2.7 Recreation and Education......................................................................15 3. Conclusion.......................................................................................................16 Figures Figure 1. Reservation for Roe Highway (Stage 8) Figure 2. Bush Forever and System 6 Boundaries Figure 3. EPP Wetland Boundaries and Wetland Management Categories Figure 4. Extent of Remnant Vegetation Appendices 1. References 1. Introduction and background 1.1 The purpose of this report Following a request from the Minister for Planning and Infrastructure, the Minister for the Environment and Heritage sought advice from the Environmental Protection Authority (EPA) in late August 2002 pursuant to Section 16(j) of the Environmental Protection Act 1986 in relation to the alignment for Stage 8 of Roe Highway. Specifically, the Minister for the Environment and Heritage sought the EPA’s confirmation of the environmental values that would be impacted if Stage 8 of Roe Highway were to be constructed. This EPA report provides environmental advice on the key environmental values associated with the alignment of Roe Highway Stage 8 and likely impacts arising if construction was undertaken. This advice is issued by the EPA under Section 16 of the Environmental Protection Act 1986 and does not constitute a formal assessment or approval by the EPA. The purpose of the advice is to provide independent guidance on environmental issues to government at a stage when formal assessment by the EPA under Part IV of the Environmental Protection Act 1986 is not possible. There is no right of appeal against Section 16 advice. 1.2 Background Roe Highway currently runs from the Great Northern Highway in the north to Welshpool Road in the south. The EPA formally assessed the construction of Roe Highway from Welshpool Road to South Street under Part IV of the Environmental Protection Act 1986 (hereafter known as EP Act), with the level of assessment set at Public Environmental Review. The alignment for Stage 7 of Roe Highway, from South Street to Kwinana Freeway, is currently being assessed by the EPA pursuant to Part IV of the EP Act. The alignment for Roe Highway Stage 8 is reserved as Primary Regional Roads in the Metropolitan Region Scheme (MRS) and runs from Kwinana Freeway through to the Fremantle Eastern Bypass (see Figure 1). It was first set aside as a Controlled Access Highway in the MRS in 1963. The reservation of this highway forms part of the ring road system which surrounds the Perth metropolitan region. 1 The alignment for Roe Highway Stage 8 runs between North Lake and Bibra Lake, which are within the Beeliar Regional Park and are part of the eastern chain of the Beeliar Wetlands. The area’s conservation values have also been recognised through its inclusion in System Six area M93 and Bush Forever Site 244 (see Figure 2). The alignment for Stage 8 of Roe Highway is also located within close proximity of residences and sensitive land uses west of Progress Drive and east of Bibra Drive. The alignment also runs along a portion of Forrest Road, which is located to the west of Stock Road and within close proximity of residences and sensitive land uses. The need for the alignment of Stage 8 of Roe Highway has recently been subject to extensive discussion and consultation through the Freight Network Review, which the government recently undertook in order to devise better ways of moving freight in the metropolitan area (DPI 2002). It has involved the participation of community, industry and government. As a result of the First Freight Network Review, which was undertaken in October 2001, three major road alignments were identified as requiring urgent resolution (DPI 2002). These were Roe Highway Stages 7 and 8, and alternatives to the Fremantle Eastern Bypass (DPI 2002). Further workshops undertaken in 2002 analysed these road alignments and a comprehensive multi-criteria analysis (MCA) process was undertaken (DPI 2002). Stakeholders from the community and industry were engaged to identify options for these road segments and develop the criteria for assessment (DPI 2002). As a result, 21 alternative options were identified and assessed against social, economic and environmental criteria (DPI 2002). The options identified comprised of five options for Roe Highway Stage 7, two options for freight only roads, eight options to upgrade existing roads between Kwinana Freeway and Stock Road and six options for Roe Highway Stage 8 alignments (DPI 2002). As a result of the MCA process the following conclusions were drawn (DPI 2002): • The highest ranked option was Roe Highway Stage 7 (as a new road) coupled with a major upgrading of Stock Road. • The options for Roe Highway Stage 8 between the Beeliar Wetlands all ranked low; and • The clear alternative to the Fremantle Eastern Bypass was a major upgrading to Stock Road. In relation to the Fremantle Eastern Bypass, the government has initiated the removal of the reservation for the Bypass in the MRS and the City of Fremantle Town Planning Scheme. 2 Figure 1: Reservation for Roe Highway (Stage 8) 3 Figure 2: Bush Forever and System 6 Boundaries 4 1.3 The role of the EPA With respect to the alignment for Stage 8 of Roe Highway, the EPA has never assessed a proposal to construct this highway under Part IV of the EP Act. This advice is provided at the request of the Ministers for Planning and Infrastructure and Environment and Heritage to inform them of the environmental values that would be affected if Stage 8 were to proceed. It should be noted that the EPA does not have specific design details on the alignment for Roe Highway Stage 8 and therefore, the EPA’s analysis is based on the overall alignment area for Stage 8 of Roe Highway as currently shown in the MRS. The EPA’s assessment is based on existing information and there is an expectation that more detailed data would be provided regarding any future proposal to construct the highway. 2. Environmental values and likely impacts The key environmental values that have been identified as being associated with the construction of the alignment for Roe Highway Stage 8 relate to wetlands, vegetation, fauna, ecological linkages, Aboriginal heritage, residential amenity, recreation and education. A broad review and outline of these values and how the proposed alignment would impact these values is provided in this section. The wetland, vegetation, flora, fauna and ecological linkage values within this area have been well documented and the following reports have been reviewed and drawn on as part of the EPA’s assessment of these environmental values and the likely impacts associated with the alignment for Stage 8 of Roe Highway: • Beeliar Regional Park – Draft Management Plan 2001 – 2011. Conservation Commission of Western Australia et al., 2001. • Bush Forever, Government of Western Australia, 2000. • Conservation Reserves for Western Australia as recommended by the Environmental Protection Authority, 1983. The Darling System. System 6, Part I and II. Department of Conservation and Environment, 1983. • Jenny Arnold’s Perth Wetlands Resource Book – Chapters 1-4, Environmental Protection Authority and the Water Authority of Western Australia, 1990. • Jenny Arnold’s Perth Wetlands Resource Book – Chapters 9 –11, Environmental Protection Authority and the Water Authority of Western Australia, 1990. • National Trust Assessment – North Lake and Bibra Lake, are A Class Calm Reserve, National Trust of Australia (WA), 2001. • Register of the National Estate Database - Beeliar Regional Park and Adjacent Areas, Australian Heritage Commission, 2002. • Roe Highway Alignment Review – North Lake Road to Kwinana Freeway, Sinclair Knight & Partners and LeProvost, Semeniuk & Chalmer, 1988. • The Cockburn Wetlands – An Environmental Study, Cockburn Wetlands Committee, 1976. 5 2.1 Wetlands The alignment for Roe Highway Stage 8 runs between North Lake and Bibra Lake (see Figure 3). As well as these two major lakes the area contains several ephemeral wetlands. This assemblage of wetlands