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ChanceryGreen PO Box 47516, Ponsonby 1144 +64 9 357 0600
BEFORE THE NORTHLAND REGIONAL COUNCIL
IN THE MATTER OF
AND
IN THE MATTER OF
APPLICATION NO.
STATEMENT OF EVIDENCE OF JUSTIN CROSS
(CHANNEL DESIGN AND DREDGING)
12 FEBRUARY 2018
INTRODUCTION
Qualifications and experience
Code of Conduct
SCOPE OF EVIDENCE
EXECUTIVE SUMMARY
CRUDE SHIPPING PROJECT: SUMMARY
CHANNEL DESIGN
Basis of design
Environmental considerations
Iterative design process
Concept design
Option 1:
Option 2:
Option 3:
Option 4:
Options 4.1 4.2
Desktop ship simulation
Option 5:
Full bridge ship simulation
Navigational Risk Assessment
Channel Depth
1 Sedimentation refers to the process whereby sediment that is naturally occurring in the water column, settles out. Due to changes in current velocity, the rate at which sedimentation occurs in a channel is generally higher than in the surrounding area.
Channel Side Slopes
Aids to navigation
Installing aids to navigation
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DREDGING
Dredge volumes
Section Dredge to design depth (m3)
Including over-dredge allowance (m3)
Total 3,177,000 3,638,000
Dredging disposal sites
Dredging equipment
2 This was the Dredging Methodology Assessment, dated 11 August 2016, forming Appendix A to the Tonkin+Taylor Dredging and Disposal Options Synthesis Report.
Expected dredge production rate
Dredger & Hopper Capacity
Cycle time to offshore disposal site (minutes)
Inner Section Middle Section Outer Section
Dredger & Hopper Capacity
Expected dredge production rate (m3 /week)
Inner Section Middle Section Outer Section
RESPONSE TO SUBMISSIONS
Item 1:
Item 2:
Item 3:
Item 4:
Item 6:
Item 7:
Item 8:
Item 9:
Item 10:
RESPONSE TO THE SECTION 42A REPORT
PROPOSED CONDITIONS
CONCLUSION
