Kaituna River Re-diversion and Wetland Creation Project - PowerPoint PPT Presentation

Kaituna River Re-diversion and Wetland Creation Project Presentation for phase 1 pre-consent consultation May/June 2013

Today’s hui • Historical Overview • Project Overview • Presentation of Options • Discussion about Environmental Effects • Feedback and questions 2

1883 Survey 3

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2003 Aerials 10

2007 Aerials 11

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Today’s meeting • Historical Overview • Project Overview • Presentation of Options • Discussion about Environmental Effects • Feedback and questions 15

Project overview Project goal • To re-divert as much of the Kaituna River as possible through Ongatoro/Maket ū Estuary, and in the process to create new wetlands, (by 2018) to maximise ecological and community benefits while ensuring the cost and environmental effects are also acceptable. Project resources • $6.5M over ten years 2012-22 • Skilled project team 16

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Today’s meeting • Historical Overview • Project Overview • Presentation of Options • Discussion about Environmental Effects • Feedback and questions 18

Existing mean salinity 19

Existing mean salinity 20

Existing mean salinity 21

Flow comparison Total Total water Percentage Total Freshwater Kaituna re-diverted of estuary freshwater fraction of volume to estuary volume re-diverted re- from to estuary diversion Kaituna Existing 2,900,000 147,000 10% 105,000 71% situation Option 1: 2,900,000 487,000+ 34% 269,000+ 55% new channel Option 2: 2,900,000 487,000+ 34% 269,000+ 55% widen Ford’s Cut 22

Existing fresh and salty water in estuary 23

Today’s meeting • Historical Overview • Project Overview • Presentation of Options • Discussion about Environmental Effects • Feedback and questions 24

Environmental Effects • Water quality, salinity and ecology • Wildlife and ecological sites • Cultural • Kaimoana • The low-lying land north of Ford’s Cut • Access to Papahikahawai Island • Upstream flood protection and land drainage 25

Environmental Effects • Downstream flood protection and land drainage • Navigation • Erosion • Recreation • Landscape • Historic sites 26

Today’s meeting • Historical Overview • Project Overview • Presentation of Options • Discussion about Environmental Effects • Feedback and questions 27

Contact details for more information Pim de Monchy Steve Everitt Project Manager Technical and Engineering Manager pim.demonchy@boprc.govt.nz Steve.everitt@xtra.co.nz 0800 884 881 extn 8518 07 308 2440 6 Rata St PO Box 474 Mt Maunganui Whakatane 28