APPENDIX C 6 WHARF DEVELOPMENT 3D GEOLOGICAL MODEL AND DREDGE VOLUMES

Transcription

1 APPENDIX C WHARF DEVELOPMENT 3D GEOLOGICAL MODEL AND DREDGE VOLUMES

2 Report Wharf Development: 3D Geological Model and Dredge Volumes Prepared for Napier Port Prepared by (Beca) 1 May 17

3 1//17

4 Wharf Development: 3D Geological Model and Dredge Volumes Executive Summary Beca Ltd (Beca) was commissioned by Napier Port to undertake geotechnical investigations, development of 3D geological model, geotechnical interpretation and developed design of the proposed Wharf to support Resource Consent application to undertake the proposed works. (Refer Napier Port - RFP Wharf Development Preliminary Design of Wharf and Structure CONT-IS dated September 1). The proposed development includes the construction of a new wharf ( Wharf) structure approximately 3m long by 3m wide to increase capacity at the port for larger vessels and cargo volumes. Wharf will be constructed adjacent to the northern end of the existing container terminal. The proposed development also involves increasing maximum dredging level at the port from the existing level (approximately -1.m CD) to -1.m CD. The 3D geological model has been developed from the data provided by Napier Port using the software Leapfrog Geo v.3.1. The geotechnical data was reviewed by an engineering geologist and a geological layering system developed based on geology, material strength and material type. The extent and quality of data varies across the site, as such some interpretation of the data has been undertaken. The following units have been modelled: Reclamation Fill - Loose to medium dense, fine to medium gravel and some cobbles, typically the outer bund edge and loose to medium dense, fine to medium sand. All reclamation fill has been combined into one layer. Recent Marine Sediment (outer harbour) this unit represents the upper layer of marine sediment in Area A, the outer length of the shipping channel. The majority of this material in this area is expected to be very loose to loose fine to medium sand. No strength testing was completed in this unit however vibrocores were successful, indicating low strength (SPT-N < blows /3mm) material. Recent Marine Sediment (transition zone and inner harbour) this unit represents the upper layer of marine sediment in Areas A1, B, C and D. This material is predominantly a soft to firm clayey silt; however lenses of sandy silt and stiffer silt are present within this layer. This unit is defined by strengths of SPT-N typically less than blows/3mm. Quaternary Marine Sediment - this material predominantly comprises a firm to stiff clayey silt, with SPT-N typically greater than blows/3mm. However zones of medium dense sands and silty sands are also present within this layer. Residual Mangaheia Group This unit represents sandstone and siltstone of the underlying Mangaheia Group rock that has been residually weathered to very stiff to hard fine sandy silt with some clay. The SPT-N values for this unit are typically between and blows/3mm Mangaheia Group this rock comprises bedded sandstone, siltstone and limestone with SPT-N typically greater than blows/3mm. Dredge volumes have been calculated from the geological model. This was achieved be defining both the horizontal and vertical boundaries of the proposed dredge area. The volumes provided are separated into the following areas: outer channel (Area A); transition between Area A and B (Area A1); inner channel (Area B); swing basin (); Wharf No. berthing pocket (Area D). Beca // 1 May // NZ // ii

5 Wharf Development: 3D Geological Model and Dredge Volumes Contents 1 Introduction 1 Project Description 1 3 Sources of Information 1 Geological Model Development Dredge Volumes 3.1 Dredge Volumes 3. Cross Sections.3 Isopach Maps Software Used 7 Applicability Statement Appendices Appendix A Sources of Information Appendix B Cross Sections Appendix C Isopach Maps Beca // 1 May // NZ // i

6 Wharf Development: 3D Geological Model and Dredge Volumes 1 Introduction Beca Ltd (Beca) was commissioned by Napier Port to undertake geotechnical investigations and interpretation, development of a 3D geological model and design of the proposed Wharf to support Resource Consent applications to undertake the proposed work. (Refer Napier Port - RFP Wharf Development Preliminary Design of Wharf and Structure CONT-IS dated September 1). This report documents development of the 3D geological model and presents dredge volumes for staged removal of material. Project Description The proposed development includes the construction of a new wharf ( Wharf) structure, approximately 3m long and 3m wide (with a m future extension also designated), to increase capacity at the port for larger vessels and cargo volumes. Wharf will be constructed adjacent to the northern end of the existing container terminal. The proposed development includes increasing the maximum dredged level at the port from the existing level (approximately -1.m CD) to -1.m CD. The proposed development includes dredging to form a berth pocket adjacent to Wharf, and to extend and deepen both the turning basin and channel into the port. The proposed dredging works, designed by Napier Port, is shown on Drawing Wharf Proposed Dredging Works Stage -1.m (31 & Rev F) and are provided in Appendix A. 3 Sources of Information Geotechnical data from historical investigations across the port area was provided by Napier Port. This was supplemented with geotechnical boreholes and 7 vibrocores undertaken by Beca between December 1 and January 1. Information used to build the geological model is summarised below, with some additional detail provided in Appendix A, Table A.1: Wharf Proposed Dredging Works Stage -1.m (Drawing 31 & Rev F dated 31//1). Napier Port survey and bathymetric data (provided 13/11/1) Seismic survey of offshore sediment thickness (provided 1/11/1) Geotechnical Investigations (provided //1) Breakwater Harbour Dredging Borehole Logs, 1977 Napier Port Wharf No. 1 Development Geotechnical Report for Dredging Work, 199 Wharf No. 1 Borehole Logs, Pro-Drill, 199 Geotechnical Report on the Proposed Reclamation to the West of the Port behind the Proposed No. Berth, OCEL, Wharf No. CPTs, Geomil / Opus, Liqueo Tanks Borehole Logs, T&T, Port Central Building Borehole Logs, Opus, 11 Port Central Building Borehole Logs, T&T, 1 Shed 9 Borehole Logs, T&T, 1 Reefer Towers Borehole Logs, T&T, 1 Kimahia Basin Dredge, Opus, 1 Beca // 1 May // NZ // page 1

7 Wharf Development: 3D Geological Model and Dredge Volumes Wharf No. 1B Borehole Logs, Golder Associates, 1 Napier Port Conveyor Borehole Log, T&T, 1 Wharf No. Proposed Dredging Vibrocore Logs, 1 Beca geotechnical investigations Wharf No. Upgrade Borehole Logs, Beca, 1 Wharf No. Borehole Logs, Beca, 1-1 Geological Model Development The 3D geological model has been developed from the data provided by Napier Port and recent investigations using the software Leapfrog Geo v The geotechnical data was reviewed by an engineering geologist and a simplified geological layering system has been developed based on geology, material strength and material type. The extent and quality of data varies across the site, as such some re-interpretation and extrapolation of the data has been undertaken. The following units have been modelled: Reclamation Fill - Loose to medium dense, fine to medium gravel and some cobbles, typically the outer bund edge and loose to medium dense, fine to medium sand. All reclamation fill has been combined into one layer. Recent Marine Sediment (outer harbour) this unit represents the upper layer of marine sediment in Area A, the outer length of the shipping channel. The majority of this material in this area is expected to be very loose to loose fine to medium sand. No strength testing was completed in this unit however vibrocores were successful, indicating low strength (SPT-N < blows /3mm) material. Recent Marine Sediment (transition zone and inner harbour) this unit represents the upper layer of marine sediment in Areas A1, B, C and D. This material is predominantly a soft to firm clayey silt; however lenses of sandy silt and stiffer silt are present within this layer. This unit is defined by strengths of SPT-N typically less than blows/3mm. Quaternary Marine Sediment - this material predominantly comprises a firm to stiff clayey silt, with SPT-N typically greater than blows/3mm. However zones of medium dense sands and silty sands are also present within this layer. Residual Mangaheia Formation This unit represents sandstone and siltstone of the underlying Mangaheia Formation rock that has been residually weathered to very stiff to hard fine sandy silt with some clay. The SPT-N values for this unit are typically between and blows/3mm Mangaheia Formation this rock comprises bedded sandstone, siltstone and limestone with SPT-N typically greater than blows/3mm. The geological model was developed by bringing together various datasets. The Leapfrog software requires a specific workflow process which ensures models are developed in a consistent and logical way. The following steps were undertaken to create the final geological model: A topographic surface, defining the upper boundary of the geological model, was created from XYZ points, derived from topographic survey and bathymetric data. 1 Leapfrog Geo is a workflow solution for geological modelling. ARANZ Geo Limited is the developer of the 3D geological modelling software Leapfrog. Beca // 1 May // NZ // page

8 Wharf Development: 3D Geological Model and Dredge Volumes Aerial imagery was draped on the topographic surface to aid with visualisation Model layers have been characterised from interpretation of investigation data including boreholes, cone penetration tests, water jet probes, seismic survey data and vibrocores. The location and interpreted geological data was then imported into Leapfrog. Geological contact surfaces were modelled using the interval data taken from the boreholes and seismic survey data. A chronological order was assigned to each unit, and each surface defined as either an erosional or depositional contact, which determines how each surface interacts and ultimately how each unit is displayed. These surfaces were then manually modified by the engineering geologist/modeller to reflect conceptual variability not captured by the available investigation data. The dredging plan was added to guide division of the model into discrete areas and dredging stages. Unit volumes are automatically calculated. The final geological model can be updated as new data becomes available. The model in its entirety has been delivered to Napier Port. The full version of the model requires a licence to update or modify. Should Napier Port obtain a licence, cross sections can be easily created within Leapfrog to present useful visualisations of the data and a series of images can be combined to create movies to highlight specific areas of importance within the model. Data created within the model can also be exported in various formats for use in other programs such as ArcGIS, CAD and Surfer. The geological model has also been provided in the form of a Leapfrog Viewer file, which can be viewed and manipulated, but not modified. The Leapfrog Viewer is a visualisation tool specifically designed to allow presentation and distribution of the model without requiring licenced software to operate or interrogate. To use it will require installation of free software, available to download from the developer s website ( Dredge Volumes.1 Dredge Volumes Dredge volumes have been calculated from the geological model and are provided in Table.1. This was achieved by defining both the horizontal and vertical boundaries of the proposed dredge area. The vertical boundaries of the dredge areas were defined using the proposed dredging plan provided by Napier Port. The upper horizontal boundary is defined using the topographic surface and the lower horizontal boundary is defined by the design dredge level. At the request of Napier Port dredge volumes were divided into.m intervals from -1.m CD to -1.m CD. Each dredge stage/interval was also split into the areas listed below and shown on Drawing 31 & Rev F (Refer to Appendix A): Area A: Outer channel Area A1: Transition between Area A and B Area B: Inner channel : Swing basin Area D: Wharf berthing pocket Volume estimates have been determined based on the following simplifications and assumptions: Beca // 1 May // NZ // page 3

9 Wharf Development: 3D Geological Model and Dredge Volumes Dredge slope angles have been not been modelled. Vertical sides have been extended to provide an equivalent area and therefore volume. This may result in a slightly greater volume of residual soil and rock and lower volume of sediment. The volumes are incremental for each.m depth of dredging, up to -1.m CD by area and material type. Localised dredging beneath the proposed wharf, the shear key and scour protection for the berth has not been included in Table.1. Estimated additional volume is,m 3 and is included in total volumes in Table.. Over dredge allowance has been added to the total volume in each dredge area at a particular dredge level. An over dredge allowance of.m at design dredge -1.m is shown in Table.1. Beca // 1 May // NZ // page

10 Wharf Development: 3D Geological Model and Dredge Volumes Table.1 - Napier Port Approximate Dredging Volumes Area Depth Interval (m CD) Recent Marine Sediment Quaternary Marine Sediment Residual Mangaheia Group Unit Volume (m 3 ) Mangaheia Group Total (excl. over dredge) Over Dredge Total (incl. Over Dredge) A -1. 7, a 7, , a 9, , a 17, -1.,3 a,3-1., a, A Total 7, 7,, 7, A1-1.,, ,9 33,9-13.,, -1. 9, 9, -1. 9,9 9,9 A1 Total 3, 3, 37, 3, B ,9,, , 1, 7, , 1, 3 31, -1. 7,9 1,,9 3,3-1. 3,9,,3 3, B Total 9, 77,7 11, 1,3 13, 11, C ,,9 97, ,9,9 17, ,3, 17, ,, 17, -1. 1,9 7, 17,9 C Total 1,7,3 3,3 1,1,, 1,, D -1.,,, 3, 1, , 9, 1, 11, -13.,3 9,, 11, -1. 1,7 1,,, 11,7-1. 1, 1,, 3, 11,7 D Total 97,,, 13,3 17,9, 17,9 Total (-1.mCD),,, 11,,,99, 7, 3,, Note: a) Refer Section. RMS in Area A predominantly very loose to loose sand. b) Excludes scour protection Beca // 1 May // NZ // page

11 Wharf Development: 3D Geological Model and Dredge Volumes Table. - Summary Total Dredge Volume by Dredge Interval Dredge Level (m CD) Total Excluding Overdredge (m 3 ) Total Including Overdredge and Scour Protection (m 3 ) -1. 1,1, 1,79, -13 1,7, 1,, ,937,,, -1,9,,77,9-1.,99, 3,3,. Cross Sections..1 Vertical Sections Vertical sections have been created at approximately m intervals extending from the outer edge of the proposed dredge area and along the length of the proposed dredge channel. The cross sections display the geological units present within the dredge area. Vertical sections are attached in Appendix B, along with a location plan... Horizontal Sections Sections sliced horizontally at dredge levels of -1.m, -13m, -13.m, -1m, and -1.m have been created to show the geology expected to be encountered at that dredge level. Horizontal sections are attached in Appendix B..3 Isopach Maps Isopach maps have been created using Surfer v.11, a contouring and surface modelling program, using outputs from the Leapfrog model. These maps show the thickness of each naturally occurring material type to dredge levels of -1.m, -13m, -13.m, -1m, and -1.m, as specified by Napier Port. This allows areas with particularly thick layers of sediment or rock to be quickly identified, facilitating the development of area specific and economic dredging solutions. Isopach maps are attached in Appendix C. Software Used Leapfrog Geo version: 3.1.1, 1. ARANZ Geo Limited. Surfer version: 11..9, 13. Golden Software, Inc. 7 Applicability Statement This report has been prepared by Beca on the specific instructions of our Client. It is solely for our Client s use for the purpose for which it is intended in accordance with the agreed scope of work. Any use or reliance by any person contrary to the above, to which Beca has not given its prior written consent, is at that person's own risk. Beca // 1 May // NZ // page

12 Wharf Development: 3D Geological Model and Dredge Volumes Should you be in any doubt as to the applicability of this report and/or its recommendations for the proposed development as described herein, and/or encounter materials on site that differ from those described herein, it is essential that you discuss these issues with the authors before proceeding with any work based on this document. Beca // 1 May // NZ // page 7

13 Wharf Development: 3D Geological Model and Dredge Volumes Appendix A Sources of Information Beca // 1 May // NZ // page

14 Wharf Development: 3D Geological Model and Dredge Volumes Table A.1 - Napier Port Existing Geotechnical Investigations Project Date Type of Investigation BH CPT Vibrocore Shear Wave Survey Surface Sample Water Jet Probe Breakwater Harbour Dredging Napier Port Wharf No. 1 Development Wharf No. 1, Pro-Drill Proposed Western Reclamation, OCEL Wharf No., GeoMil / Opus Liqueo Tanks, T&T Port Central Building, Opus Port Central Building, T&T Shed 9, T&T 1 3 Reefer Towers, T&T 1 Wharf No. Upgrade, Beca Kimahia Basin Dredge, Opus Wharf No. 1B, Golder 1 3 Napier Port Conveyor, T&T Wharf No. Development, Beca Wharf No. Proposed Dredging Beca // 1 May // NZ // page 9

15 1 me me me NOTES: 1.. mn 3... All survey and GPS positions are in terms of HAWKES BAY CIRCUIT (HAWKTM) datum. All sounding depths are in terms of chart datum,.37m below BM (H). Stainless steel pin in concrete block near south west corner of PONL Admin Building. Major Isobaths are at 1.m intervals. Minor Isobaths are at.m intervals. Shaded areas are areas to be dredged (cut). Volume to be dredged 3,,m3 mn REFERENCES Existing ground contours from surveys: 1 Multibeam White Pointer Survey CZM F1S.ASC Colour Banding - Cut Depths (m) Number Minimum Elevation Maximum Elevation AREA A Color DESIGN GRADE 1:3. mn mn AREA C DESIGN -1.m m AREA B DESIGN -1.m AREA D harf DESIGN GRADE 1: 31//1 Layout modifications E 9//1 New channel layout as requested by pilots D //1 New channel layout post simulation study ISS DATE AMENDMENTS APPD CONCEPT DESIGN NOTE: SCALES SHOWN ARE FOR A1 DRAWING WHARF PROPOSED DREDGING WORKS STAGE -1.M 1 me me me AREA TO BE DETAILED DURING DESIGN PHASE ed W s o.m p 1 Pro /D= M m. T 3 = E K m ea OC B P / H m T 3 BER A O ip L h S l ode M DESIGN T X E E BERTH TUR U F AREA TO BE DETAILED -1.m M DURING DESIGN PHASE F REFERENCE DRGS FILE 31 CHECK DATE CADFILE SURVEY CP PV MdV //1 DESIGN CP PV MdV //1 DRAWN No. SCALE 1: APPROVED SHEET 31 REV F

16 19 mn mn mn mn 1 mn mn mn Colour Banding - Cut Depths (m) Maximum Elevation me 1. Color POR T MA me REFERENCES Existing ground contours from surveys: 1 Multibeam White Pointer Survey CZM F1S.ASC NAG E MEN T AR EA EX SP EC I IS TI 1 me All survey and GPS positions are in terms of HAWKES BAY CIRCUIT (HAWKTM) datum. All sounding depths are in terms of chart datum,.37m below BM (H). Stainless steel pin in concrete block near south west corner of PONL Admin Building. Major Isobaths are at 1.m intervals. Minor Isobaths are at.m intervals. Shaded areas are areas to be dredged (cut). Volume to be dredged 3,,m3 NG O SC JO AL CO ING SO UTH C HANN EL DU KC TR ACK Minimum Elevation NS ER CH VA NE AN TI O N 1 me EXIST Number NOTES: AR L EA KC DU TR K AC DESIGN -1.m me me AREA B EX IST IN G PW AT CH AN NE LD UK CT A D ER ARE DE E DESIGN GRADE 1:3. RA CK DESIGN BERTH -1.m AREA A1 me m me DESIGN -1.m AREA A Port Boun dary AREA C DESIGN GRADE 1: me me F 31//1 Layout modifications E 9//1 New channel layout as requested by pilots D //1 New channel layout post simulation study ISS DATE AMENDMENTS APPD WHARF PROPOSED DREDGING WORKS STAGE -1.M 19 mn NOTE: SCALES SHOWN ARE FOR A1 DRAWING mn mn mn 1 mn mn mn CONCEPT DESIGN REFERENCE DRGS FILE 31 CHECK DATE CADFILE SURVEY CP PV MdV //1 DESIGN CP PV MdV //1 DRAWN No. SCALE 1: APPROVED SHEET 31 REV F

17 Wharf Development: 3D Geological Model and Dredge Volumes Appendix B Cross Sections Beca // 1 May // NZ // page

18 19 mn mn mn mn 1 mn mn mn Colour Banding - Cut Depths (m) Number Minimum Elevation Maximum Elevation Color All survey and GPS positions are in terms of HAWKES BAY CIRCUIT (HAWKTM) datum. All sounding depths are in terms of chart datum,.37m below BM (H). Stainless steel pin in concrete block near south west corner of PONL Admin Building. Major Isobaths are at 1.m intervals. Minor Isobaths are at.m intervals. Shaded areas are areas to be dredged (cut). Volume to be dredged 3,,m POR T MA me REFERENCES Existing ground contours from surveys: 1 Multibeam White Pointer Survey CZM F1S.ASC NAG E EX A SP EC I IS TI 1 me NG O SC JO AL CO ING SO UTH C HANN EL DU KC TR ACK MEN T AR EA NS ER CH VA NE AN TI O N 1 me EXIST me NOTES: AR L EA KC DU TR K AC J B A' DESIGN -1.m J' me me AREA B EX IST IN G I' PW AT C CH AN NE B' LD UK CT RA A D ER ARE DE E DESIGN GRADE 1:3. CK G D I DESIGN BERTH -1.m F E H' H AREA A1 me me m C' DESIGN -1.m AREA A AREA C Port Boun dary D' E' F' DESIGN GRADE 1: G' me me F 31//1 Layout modifications E 9//1 New channel layout as requested by pilots D //1 New channel layout post simulation study ISS DATE AMENDMENTS APPD WHARF PROPOSED DREDGING WORKS STAGE -1.M 19 mn NOTE: SCALES SHOWN ARE FOR A1 DRAWING mn mn mn 1 mn mn mn CONCEPT DESIGN REFERENCE DRGS FILE 31 CHECK DATE CADFILE SURVEY CP PV MdV //1 DESIGN CP PV MdV //1 DRAWN No. SCALE 1: APPROVED SHEET 31 REV F

19 Area B 1937 Area D 193 Area A Area A WHARF DEVELOPMENT HORIZONTAL SECTION 1 HORIZONTAL SECTION DREDGE LEVEL 1.m Rev

20 Area B 1937 Area D 193 Area A Area A WHARF DEVELOPMENT HORIZONTAL SECTION HORIZONTAL SECTION DREDGE LEVEL 13.m Rev

21 Area B 1937 Area D 193 Area A Area A WHARF DEVELOPMENT HORIZONTAL SECTION 3 HORIZONTAL SECTION DREDGE LEVEL 13.m Rev

22 Area B 1937 Area D 193 Area A Area A WHARF DEVELOPMENT HORIZONTAL SECTION HORIZONTAL SECTION DREDGE LEVEL 1.m Rev

23 Area B 1937 Area D 193 Area A Area A WHARF DEVELOPMENT HORIZONTAL SECTION HORIZONTAL SECTION DREDGE LEVEL 1.m Rev

24 A Viewpoint: looking southwest A' Elevation (m RL) Design 1.m VB1a-Beca1 3m Design cut grades 1: , , Distance (m) Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Recent Marine Sediments Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION 1 VERTICAL SECTION A A' Rev

25 B Viewpoint: looking southwest B' Elevation (m RL) VB3c-Beca1 17m Design 1.m VBa&b-Beca1 1m Design cut grades 1: , , 7 Distance (m) Legend Mangaheia Fm (N = +) Quaternary Marine Sediments Recent Marine Sediments Reclamation Fill Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION B B' Rev

26 C Viewpoint: looking southwest C' Elevation (m RL) Design 1.m VBb-Beca1 9m Design cut grades 1: , , Distance (m) Legend Mangaheia Fm (N = +) Quaternary Marine Sediments Recent Marine Sediments Reclamation Fill Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION 3 VERTICAL SECTION C C' Rev

27 D Viewpoint: looking southwest D' Elevation (m RL) VB9a-Beca1 3m Design 1.m VBa-Beca1 9m Design cut grades 1: , , 139 Distance (m) Legend Mangaheia Fm (N = +) Quaternary Marine Sediments Recent Marine Sediments Reclamation Fill Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: 3x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION D D' Rev

28 E Viewpoint: looking south E' Elevation (m RL) VB1a-Beca1 m Design 1.m VB11a-Beca1 1m P13-OCEL 3m P1-OCEL 1m Design cut grades 1: , 7 193, 7 Distance (m) Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Recent Marine Sediments Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: 3x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION E E' Rev

29 F Viewpoint: looking south F' Elevation (m RL) VB1a-Beca1 13m Design 1.m P7-OCEL m Design cut grades 1: P-OCEL m , Distance (m) 19313, 399 Scale: 1:1 Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Recent Marine Sediments Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: 3x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION F F' Rev

30 Elevation (m RL) G P-OCEL 1m VBa-Beca1 9m Area A1 Viewpoint: looking southeast Design 1.m PON1-P-OCEL m Design cut grades 1: VB17a-Beca1 9m PON-OCEL m G' , , 3399 Distance (m) Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Residual Mangaheia Fm Recent Marine Sediments m Scale: 1:, Vertical exaggeration: x m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION 7 VERTICAL SECTION G G' Rev

31 H Viewpoint: looking east H' Elevation (m RL) Design 1.m BH1-Beca1 1m Area D BH-Beca1 3m BH13-Beca1 31m Proposed Wharf BH-Beca1 m BH1-Beca1 m , , 317 Distance (m) Legend Mangaheia Fm (N = +) Quaternary Marine Sediments Recent Marine Sediments Reclamation Fill Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION H H' Rev

32 1 I Viewpoint: looking east Proposed Wharf BH-Beca1 m BH-Beca1 17m I' Elevation (m RL) VBa-Beca1 m Area A1 Area B Design 1.m BH-Beca1 m VB1a-Beca1 m Area D BH1-Beca1 3m BH17-Beca1 m , , 3 Distance (m) Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Recent Marine Sediments Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: 3x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION 9 VERTICAL SECTION I I' Rev

33 J Viewpoint: looking southeast J' 1 BH1-GA1 7.m BH-Beca1.m Elevation (m RL) BH-Beca1 17.1m Design cut grades 1: Design 1.m , , 317 Distance (m) Legend Mangaheia Fm (N = +) Reclamation Fill Quaternary Marine Sediments Recent Marine Sediments Residual Mangaheia Fm Scale: 1:1, Vertical exaggeration: 3x m m FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT VERTICAL SECTION VERTICAL SECTION J J' Rev

34 Wharf Development: 3D Geological Model and Dredge Volumes Appendix C Isopach Maps Beca // 1 May // NZ // page 11

35 ab Are D Area Area A1 193 Area A Thickness (m) Easting (NZTM) Northing (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RECENT MARINE SEDIMENT TO -1.m ISOPACH MAP Rev 3

36 Are a B D Area Area A Area A Easting (NZTM) Thickness (m) 1937 Northing (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RECENT MARINE SEDIMENT TO -13.m ISOPACH MAP Rev

37 Are 1937 D Area Area A1 Area A Thickness (m) ab Easting (NZTM) 1937 Northing (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RECENT MARINE SEDIMENT TO -13.m ISOPACH MAP Rev 3

38 Are a D Area Area A1 1 Area A Thickness (m) B Easting (NZTM) 1937 Northing (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RECENT MARINE SEDIMENT TO -1.m ISOPACH MAP Rev 3

39 D Area 1 Area A1 193 Area A Thickness (m) Are a B Easting (NZTM) Northing (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RECENT MARINE SEDIMENT TO -1.m ISOPACH MAP Rev 3

40 Area A Northing (NZTM) 37 3 Area B 3 Thickness (m) Area D Easting (NZTM) FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT ISOPACH MAP ISOPACH MAP QUATERNARY MARINE SEDIMENT TO 1.m Rev 3

41 Area A Northing (NZTM) 37 3 Area B 3 Thickness (m) Area D Easting (NZTM) FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT ISOPACH MAP ISOPACH MAP 7 QUATERNARY MARINE SEDIMENT TO 13.m Rev 3

42 Area A Northing (NZTM) 37 3 Area B 3 Thickness (m) Area D Easting (NZTM) FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT ISOPACH MAP ISOPACH MAP QUATERNARY MARINE SEDIMENT TO 13.m Rev 3

43 Area A Northing (NZTM) 37 3 Area B 3 Thickness (m) Area D Easting (NZTM) FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT ISOPACH MAP ISOPACH MAP 9 QUATERNARY MARINE SEDIMENT TO 1.m Rev 3

44 Area A Northing (NZTM) 37 3 Area B 3 Thickness (m) Area D Easting (NZTM) FOR PDF TENDER ONLY NOT FOR NO CONSTRUCTION WHARF DEVELOPMENT ISOPACH MAP ISOPACH MAP QUATERNARY MARINE SEDIMENT TO 1.m Rev 3

45 Area A Are ab 3 D Area Northing (NZTM) 37 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RESIDUAL MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3

46 Area A Are ab 3 33 D Area 1 3 Northing (NZTM) 7 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RESIDUAL MANGAHEIA FORMATION TO -13.m ISOPACH MAP Rev 3

47 Area A Area Are a B 3 D Northing (NZTM) 37 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RESIDUAL MANGAHEIA FORMATION TO -13.m ISOPACH MAP Rev 3

48 Area A Are ab Area 3 D Northing (NZTM) 37 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RESIDUAL MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3

49 Area A Are a 3 1 B 33 D Area 3 Northing (NZTM) Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP RESIDUAL MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3

50 Area A Are a Area D 3 B Northing (NZTM) 37 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3

51 Area A Are ab 3 Area D Northing (NZTM) 9 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP MANGAHEIA FORMATION TO -13.m ISOPACH MAP Rev 3

52 Area A Area B 3 D 1 33 Are a 3 1 Northing (NZTM) 37 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP MANGAHEIA FORMATION TO -13.m ISOPACH MAP Rev 3

53 Area A Are ab 3 1 D Area Northing (NZTM) 9 Thickness (m) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3

54 Area A Are ab 3 D Area Thickness (m) Northing (NZTM) Easting (NZTM) PDFTENDER ONLY FOR NO CONSTRUCTION NOT FOR WHARF DEVELOPMENT ISOPACH MAP MANGAHEIA FORMATION TO -1.m ISOPACH MAP Rev 3