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 Mangatawa Flood Bypass and TEM Stormwater Consent Required Status Activity Plan Ref Proposed Consent Holder 10yrs 35yrs Construction of bund and flood storage area (Flood Bypass) on lower Mangatawa Drain Earthworks Discretionary NZTA component of TCC Treatment Pond Enlargement Discharges to Water and Land – Rule 48, Form 8, Form 9, Variation 17A NZTA Discharges to Water or Land Discretionary Discharge (spill) from Mangatawa Drain across SH 2 to Land (in flood event) TCC Discharges to Water or Land Discretionary Discharge from Maranui Swale to harbour via culverts at Ch 6850 into Mangatawa Drain (in flood event) 9 TCC Discharge of Stormwater to Water or Land Restricted Discretionary Discharge from TCC Treatment Pond to harbour 14 TCC Damming and Diversion of Water – Rule 48 Diversion of water (Surface Runoff) Discretionary Operation of a Bund & Barrier in 2 locations 2,4 TCC Diversion of water (Surface Runoff) Discretionary Through 2 culverts at Mangatawa Lane (Ch 6850) 9 TCC (in flood event) Activities in the beds of rivers streams and lakes – Rule 68, 71, Form 1 Activity in the Bed Discretionary Mangatawa drain works (potential for temporary bed disturbance) Activity in the Bed Discretionary Mangatawa Drain widening to increase capacity (Ch 9000-9400 east of Kairua Road) Activity in the Bed Discretionary Mangatawa Drain realignment at railway (includes erosion protection, gabion baskets) 3 NZTA TCC 1 NZTA TCC 5, 6 NZTA Placing Culverts –Rules 59 to 59D, Form 1 Culverts Restricted Discretionary Installation of culverts at Ch 6850 from Maranui Swale to Mangatawa Drain 9 NZTA Culvert Extensions Restricted Discretionary Extension of culverts under Kairua Road 11 NZTA Culvert Permitted Install an 1800 dia culvert at Ch 5900 on MPBI land in an open 12 TCC Status: Final Page 39 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 Mangatawa Flood Bypass and TEM Stormwater Consent Required Status Activity Plan Ref Proposed Consent Holder 10yrs 35yrs drain Culvert Permitted Install a 1200 dia culvert at Ch 5900 on MPBI land in an open drain Modification to Culvert Permitted Ch 5700 upgrading of TCC culvert size from 750 to 1200 dia Modification to Culvert Permitted Install typical 450 dia culverts across SH2 between Ch 5250 and Ch 10850 12 NZTA 15 TCC 16 NZTA * DOG = Deed of Grant – Required to undertake works on Ontrack Land 4.2 Regional Coastal Plan - Variation of Consent The TCC application seeks a coastal permit for the increase in volume discharging to the harbour from the lower Mangatawa Drain and for an increase in discharge from an already consented discharge from the stormwater treatment wetland. An outlet runs into the Special Ecological Site 13 (SES) 3 and fresh water drains into the Coastal Marine Area (CMA). Rock weirs and earth bunds have been designed to contain the stormwater to the outlet channel however storm water will enter the SES. This outlet currently has a resource consent for discharge and this application seeks vary the conditions in this consent. Note, the current and the proposed future Maranui stormwater outlet both have a rock weir at the point of discharge to SES area, then the water flows through the SES area to the harbour, although most of the SES area is tidal so is potentially part of the harbour. There are no rules pertaining to stormwater discharge into an ecological area, however rule 9.2.4(a) of the Regional Coastal Plan applies. The discharge into the CMA is discretionary activity subject to the conditions set out in the existing consent. This application seeks to increase the volume and flow rate of this discharge. 3 See Appendix 2 For location of SES 13 Status: Final Page 40 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 3 - Drawing 3932036 ck119
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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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