RESC11-12-02 Port Motueka Groyne-Jackett Island Erosion ...

Table of contents
1 Introduction 1
1.1 Current progress 1
2 The current understanding of coastal processes 2
3 Potential solutions 4
3.1 Do nothing 4
3.2 Asset relocation 4
3.3 Planning responses 5
3.4 Existing channel maintenance 5
3.5 New small channel dredging (PMUG Option) 6
3.6 Reset of channel position 7
3.7 Training Groynes with nourishment from existing channel maintenance 8
3.8 Seawall (land protection) 8
3.9 Alternative options 8
3.10 Summary 9
4 Applicability 10
Appendix A: Changes to the Spit from 1993 to 2011
Appendix B:
Sketches of potential solutions
Jackett Island Long Term Erosion Management Preliminary Practicable Options Report Job no. 27882-PPO-R2
Tasman District Council November 2011