2. Mangatawa catchment consents for earthworks, storm water ...

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NZ Transport Agency and Tauranga City Council Mangatawa Drain Flood Bypass and TEM Stormwater AEE 5.4 State Highway 2 State highway 2 provides a strategic link with Rotorua and the farming, horticulture and forestry industry with the Port of Tauranga. It is also a section of the Pacific Coast Highway, a popular scenic route for travellers, campervans, caravans and holidaymakers. The link to the Port of Tauranga affects the types of vehicles which frequently use this stretch of road including heavy vehicles, tractors, sprayers and vehicles associated with these industries. State Highway 2 is also a utility corridor carrying water, sewerage, electricity, Telecom and high voltage cabling. These utility providers have been engaged as part of the TEM resource consent process (see application for details) and ongoing talks with these utility providers are taking place to identify opportunities to upgrade, maintain or relocate this infrastructure. 5.5 Social Environment This area has attracted many residents seeking an urban coastal lifestyle and this has driven the demand for residential development to the north. By contrast however many of landowners adjacent to the eastern end of the site are/were farmers who have lived in the area for many years and they still place a large importance on rural amenity. It is this rural land that floods during high rainfall events and there is recognition from these landowners that this will happen. There is a general understanding amongst landowners that the trends in development in the Tauranga City and Papamoa areas create growth pressures. This has resulted in their land being required increasingly by infrastructure providers experienced by landowners as a result of infrastructure requirements. This being said most landowners consulted did not object to the motorway project but wanted to understand the details of the project (in most cases stormwater) and to be comfortable with the outcomes proposed. 5.6 Cultural The iwi and hapu have an acute interest in the area because of historical and cultural associations. For this application NZTA has consulted with Ngaiterangi, Nga Potiki and Ngati Pukenga, Ngati He and Ngai Tukairangi about effects of this proposal. The outcome of this consultation is provided in Section 7. The Nga Potiki, Tamapahore Marae is situated on an elevated land overlooking the State highway to the South East of Te Maunga. This is one of the few sites that overlook the proposed roading development. Land to the west of the Marae is Maori land title owned by Mangatawa Papamoa Block Incorporated. Tauranga Harbour is known to tangata whenua as Te Awanui. Te Awanui is the rohe moana of three iwi - Ngāti Ranginui, Ngāiterangi, Ngāti Pūkenga. Most of the marae of these iwi are located close to the harbour margins. The mauri of the harbour is extremely important for the customary relationship tangata whenua have with the harbour, in particular customary food gathering. Status: Final Page 45 April 2009 Project Number: 3932036 NZ1-1552092-Mangatawa Drain Flood Bypass and TEM Stormwater AEE
NZ Transport Agency and Tauranga City Council Mangatawa Drain Flood Bypass and TEM Stormwater AEE 5.7 Archaeological An archaeological assessment was undertaken during the TEM resource consent phase of the project for the road alignment in this location. An additional assessment was undertaken to include all the works proposed in this document and the results are summarised below. This area includes the proposed works in the stormwater treatment wetland for MPBI and the Tauranga City Council proposed upgrade to the Maranui swale. These assessments are attached as reports in Appendix 6. 5.7.1 Summary of Results There are seven recorded archaeological sites within 300m of the proposed construction corridor. None of the seven sites falls within the affected properties; however, there remains a possibility that unrecorded subsurface archaeological sites are present within the affected areas which may be disturbed by ground disturbance associated with the construction of the Tauranga Eastern Motorway. There are no previously recorded archaeological sites and no unrecorded archaeological sites were within land affected by this proposal. However Pre-European occupation on the eastern edge of the wetland and on raised ground on the eastern side of Mangatawa Lane was likely to have been extensive. The area was a poorly drained wetland and would have been a source of construction materials such as raupo and food such as birds and eels. The collection of such resources rarely leaves an archaeological record, however, swamp and wetland environments often contain artefacts made form organic materials such as wood and flax as the anaerobic conditions of wetlands provide an environment that can preserve buried organic materials that rarely survive elsewhere. Many wooden and organic artefact assemblages have been recovered from wetland sites throughout the Bay of Plenty. Wetland areas within the construction corridor and the proposed works to construct the Flood Bypass have the potential to contain such artefacts especially given the high concentration of archaeological sites on the surrounding hill country and dune plain. 5.7.2 Archaeological Significance This part of the Bay of Plenty is rich in archaeological evidence of Maori occupation, the majority of recorded archaeological sites relating to the period before the arrival of Europeans. The recorded sites may be significant individually because of the archaeological information they contain relating to the history of Maori occupation in the area, but they also gain significance as components in a wider archaeological landscape. The nature and sequence of occupation over time is best understood with reference to the full range of sites within the area and the relationship between them. Any subsurface archaeological sites that may be present within the construction corridor may have the potential to add to our understanding of the nature and antiquity of the surrounding pre European Maori cultural landscape. 5.7.3 General Considerations The archaeological assessment undertaken considers archaeological values and does not include an assessment of Maori values. Such assessments can only be made by the tangata whenua. It should be noted that archaeological survey techniques (based on visual inspection and minor sub-surface testing) cannot necessarily identify all sub-surface archaeological features, or detect waahi tapu and other sites of traditional significance to Maori, especially where these have no physical remains. Status: Final Page 46 April 2009 Project Number: 3932036 NZ1-1552092-Mangatawa Drain Flood Bypass and TEM Stormwater AEE
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APPENDIX 1 - Drawing 3932036 ck301R
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APPENDIX 5 - Bioresearches Report:
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APPENDIX 7 - Archaeological Assessm
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ARCHAEOLOGY B.O.P. HERITAGE CONSULT
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2 INTRODUCTION Project Background T
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4 ARCHAEOLOGICAL LANDSCAPE Previous
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6 U14/1708 & 1709 Figure 3. Cadastr
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8 Figure 6. Part ML 8133 showing Pt
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10 Hungahunga & Toroa A further ton
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12 APRIL 2008 ARCHAEOLOGICAL SURVEY
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14 Historic Places Act In addition
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APPENDIX 8 - Hydraulic Modelling: M
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Hydraulic Modelling: Mangatawa Drai
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undertake investigations into the d
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Discharge to Papamoa Beach To disch
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• Riparian planting adjacent to t
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2.2 Hydrological Assessment 2.2.1 C
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The Maranui catchment area in the m
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Table 7 - 2% AEP Storm Event Top Sp
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These results include climate chang
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3.3 Maintenance Work in Mangatawa D
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stormwater from the Maranui catchme
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Appendix A Mangatawa Drain Layout P
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Appendix C Runoff Hydrographs
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Appendix E Proposed Lower Mangatawa
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APPENDIX 10 - Drawings 3932036 ck46
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APPENDIX 12 - Drawing 3932036 ck227
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Report Tauranga Eastern Motorway -
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1 Introduction This report describe
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embankment settlement rates, and th
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3.2 Construction Sequence The typic
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concrete contamination as well as s
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Pahse 1 consists of the western sec
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• Installation of Stage 2 decanti
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Appendix A Erosion and Sediment Con
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Activity Status Mangatawa Drain 1.1
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(b) Natural State (River) Water Qua
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6. Reclamation or drainage of the b
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APPENDIX 15 - Legal Descriptions of
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Path: P:\393\3932036\TGI\55_Project
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32 Harington Street PO Box 903, Tau
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32 Harington Street PO Box 903, Tau
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