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  Services » Publications » Technical reports - by year » tr201347

Pohue flood protection scheme design report

On this page: about this report, read or download the report

Report: TR 2013/47

Author: Megan Wood (Wainui Consulting Limited)

About this report

The purpose of this Design Report is to provide a summary of the works that have been undertaken at Pohue to reduce the flood hazard from Pohue Stream, including the rationale behind the scheme development, the agreed levels of service, the design details, as built information, the operation and maintenance requirements of the scheme, the residual flood risk and the scheme review requirements.

The Design Report includes the following sections:

  • Catchment overview
  • Scheme design
  • Flood mitigation scheme
  • Agreed levels of service
  • Operation and maintenance
  • Residual flood risk
  • Planning controls, and
  • Scheme review.

Read or download the report

Pohue flood protection scheme design report (PDF 3MB)

Contents

  Executive summary  vii
1 Introduction 1
1.1 Background 1
1.2 Scope of report 1
2 Catchment overview 2
2.1 Catchment description 2
2.2 Pohue Stream 3
2.3 Flooding issues 4
2.4 Flood hazards 5
3 Scheme design 7
3.1 Technical information 7
3.2 Initial investigations 7
3.3 Design principles 8
3.4 Hydrological assessment 9
3.5 Model development 10
4 Flood mitigation scheme 11
4.1 Overall objectives 11
4.2 Pohue Creek Road culvert upgrade 11
4.3 Channel improvements 11
4.4 Channel stability 14
4.5 Completed works 14
4.6 Catchment management works 15
4.7 Future works 15
5 Agreed levels of service 17
6 Operation and maintenance 18
7 Residual flood risk 19
8 Planning controls 20
9 Scheme review 21
10 References 22
  Appendix 1: Design information 23
  Appendix 2: Cost estimate 30
  Appendix 3: Bridge design details 31
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