Historic Character (Archaeology Section) Delivery Work Plan

Karangahape Station Main Works Historic Character (Archaeology Section) Delivery Work Plan

CRL-KRD-RME-LKA-PLN-800023

Revision: 000 Date: January 2020

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Historic Character (Archaeology Section) Delivery Work Plan

Historic Character (Archaeology Section) Delivery Work Plan CRL-KRD-RME-LKA-PLN-800023

This document is uncontrolled when printed. This document should be printed in colour

Revision Status Revision

Date

Version details

Prepared By

Approved By

A

3/12/2019

Draft for review

Sarah Macready

Peter Roan

000

29/01/2019

Final for submission

Sarah Macready

Peter Roan

Approval Status Name/Title

Signature

Date

Prepared by:

Sarah Macready Clough & Associates

29/01/2019

Reviewed by:

Cameron Sunde Planner – Link Alliance

29/01/2019

Approved by:

Peter Roan Consents Lead – Link Alliance

29/01/2019

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Historic Character (Archaeology Section) Delivery Work Plan

Table of contents 1.1

Karangahape Station ..................................................................................................... 5

1.2

DWP Staging ................................................................................................................. 5

1.3

Purpose of the Historic Character DWP (Archaeology Section) ........................................ 6

1.4

Relevant Conditions ...................................................................................................... 6

1.5

Sustainability ................................................................................................................ 8

1.6

DWP Review and Updates ............................................................................................. 8

2. Karangahape Main Works ........................................................................ 9 2.1

Overview of Works ........................................................................................................ 9

3. Historic Heritage Values – Archaeology .................................................. 10 3.1

Archaeological Sites in the Project Area ....................................................................... 10

4. Roles and Responsibilities ...................................................................... 11 4.1

Project Archaeologist Roles and Responsibilities .......................................................... 11

4.2

Contractor Briefing ...................................................................................................... 11

4.3

Key Personnel ............................................................................................................. 11

5. Training.................................................................................................. 13 5.1

Pre-Construction Briefing ............................................................................................ 13

5.2

Toolbox Talks .............................................................................................................. 13

5.3

Training Records ......................................................................................................... 13

6. Archaeological Procedures and Mitigation Measures ............................. 14

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6.1

Mercury Lane Shaft and Station Entrance..................................................................... 14

6.2

Archaeological Discovery Protocols.............................................................................. 14

6.3

Discovery of Archaeological or Cultural Remains .......................................................... 14

6.4

Mana Whenua Protocols ............................................................................................. 15

6.4.1.

Archaeological Remains ................................................................................................ 15

6.4.2.

Kōiwi Tangata (Human Remains) .................................................................................. 15

6.4.3.

Taonga (Māori Artefacts) .............................................................................................. 15

6.5

Recording of Features and Deposits ............................................................................. 16

6.6

Artefact Management Plan .......................................................................................... 16

6.7

Stand Down Periods .................................................................................................... 17

6.8

Post Excavation Analysis and Archiving ........................................................................ 18

6.9

Reporting Requirements.............................................................................................. 18

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Historic Character (Archaeology Section) Delivery Work Plan

7. Communication and Consultation .......................................................... 20 Appendix A: HNZPTA Requirements............................................................. 21 Appendix B: Record of CLG, IPR and Auckland Council Comments ............... 22 B1

CLG Comments ............................................................................................................ 22

B2

IPR Comments............................................................................................................. 22

B3

Auckland Council Comments ....................................................................................... 23

Appendix C: ISCA Requirements................................................................... 24

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Introduction The City Rail Link (CRL) project comprises the construction, operation and maintenance of a 3.4 km underground passenger railway, running between Britomart Station and the North Auckland Rail Line in the vicinity of Mt Eden Station. The CRL also involves the construction of two new underground stations at Aotea and Karangahape and a redeveloped Mt Eden station (refer to Figure 1-1). The design and construction of the CRL infrastructure between the Aotea and Mt Eden Stations is being delivered by the Link Alliance.

Figure 1-1: CRL Route and Location

This Historic Character Delivery Work Plan (HC DWP) (Archaeology Section) has been prepared in relation to the main construction works for the new Karangahape Station.

1.1 Karangahape Station The Karangahape Station consists of two entrances, one at Beresford Square / Pitt Street and the other at Mercury Lane, linked together by platforms with two mined tunnels approximately 32m below Pitt Street. The Station will also comprise equipment rooms, ventilation systems and emergency egress at both Mercury Lane and Beresford Square / Pitt Street.

Given the nature and scale of the Karangahape Station construction, works will be undertaken in a staged manner, involving: • • •

Early works (demolition, network utility relocation and site establishment works) – to be undertaken from October 2019 through to early 2020; Main construction works (construction of the station and mined tunnels for the rail tracks) – to be undertaken from early 2020 through to late 2023; and Public realm reinstatement – likely to be undertaken from late 2022 to late 2024.

1.2 DWP Staging Page 5

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Historic Character (Archaeology Section) Delivery Work Plan To reflect the staged construction approach for the Karangahape Station, a series of HC DWPs (Archaeology Section) are being prepared.

This HC DWP addresses the archaeological aspects of the Karangahape Station main works. The main works are detailed in the Construction Environmental Management Plan (CEMP), and summarised in Section 2 of this DWP. If required, a further HC DWP will be prepared in the future to address the public realm reinstatement works.

1.3 Purpose of the Historic Character DWP (Archaeology Section) This HC DWP (Archaeology Section) has been prepared to identify measures that will be implemented to mitigate and manage the potential adverse effects on archaeology during the Karangahape Station main works. The objective of the HC DWP (Archaeology Section) in accordance with CRL designation Condition 42.2 is: •

“To avoid, remedy or mitigate adverse effects on archaeological remains during construction, as far as is reasonably practicable.”

The Archaeology Section addresses the requirements of CRL designation Condition 42 and will be implemented throughout the construction period.

This HC DWP (Archaeology Section) is consistent with the archaeological provisions of the Heritage New Zealand Pouhere Taonga Act 2014 and the archaeological Authority granted by Heritage New Zealand Pouhere Taonga authorising modification of archaeological sites within the Karangahape Station works area (2017/793 – refer Appendix A).

This HC DWP (Archaeology Section) has been prepared in consultation with the Karangahape Community and Business Liaison Group (CLG) and reviewed by the Independent Peer Reviewer (IPR) prior to submission to Auckland Council (as per designation Conditions 7 and 11). A record of consultation outcomes is included in Appendix B. This HC DWP (Archaeology Section) has been prepared by Clough & Associates Ltd and forms part of the CEMP for the main works.

1.4

Relevant Conditions

Table 1-1 identifies the designation conditions relevant to this HC DWP and where they are addressed in the document.

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Historic Character (Archaeology Section) Delivery Work Plan Table 1-1: Historic Character – Archaeology conditions and DWP Section where addressed

Condition No.

Condition

Relevant section of DWP

42.1

A Historic Character DWP shall be prepared to manage the adverse effects on built heritage and archaeology that may result during construction of the City Rail Link or any part of it.

This document

42.2

The objective of the Archaeology section of the Historic Character DWP is to avoid, remedy or mitigate adverse effects on archaeological remains during construction, as far as reasonably practicable.

This document

42.3

To achieve the above objective the following matters shall be included in the Archaeology section of the Historic Character DWP: (a) Constructor roles and responsibilities, stand-down periods and reporting requirements are to be clearly identified;

Sections 4.1, 6.7, 6.9

(b) How procedures for archaeological investigations and monitoring of preliminary earthworks are to be implemented in areas where there is potential for archaeological remains to be discovered;

Sections 6.1, 6.3

(c) Procedures for the discovery of, including accidental discovery of archaeological remains including:

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(i) The ceasing of all physical construction works in the immediate vicinity of the discovery;

Sections 6.2, 6.3, 6.4, 6.7

(ii) Practices for dealing with the uncovering of cultural or archaeological remains and the parties to be notified (including, but not limited to, appropriate iwi authorities, the Auckland Council Consents Monitoring officer, the New Zealand Historic Places Trust [now Heritage New Zealand Pouhere Taonga - HNZPT], and the New Zealand Police (if koiwi (human skeletal remains) are discovered);

Sections 6.2, 6.3, 6.4, 6.5

(iii) Procedures to be undertaken before physical works in the area of discovery can start again, including any iwi protocols, recording of sites and material, recovery of any artefacts, and consultation to be undertaken with iwi, Auckland Council Consent Monitoring officer and Heritage Unit, and with the New Zealand Historic Places Trust [now HNZPT]; and

Sections 6.3, 6.4, 6.5, 6.6, 6.7

(iv) Procedures for recording any archaeological remains or evidence before it is modified or destroyed, including opportunities for the conservation and preservation of artefacts and ecofacts (biological material) that are discovered. Consideration shall be given to the incorporation of in-situ material or artefacts into the design of stations and / or public places associated with the City Rail Link project. Consideration shall also be given to the provision for ‘post-excavation’ assessment analysis and publication of material within 24 months of completion of construction.

Sections 6.5, 6.6, 6.7, 6.8, 6.9

(v) Provision for ‘post-excavation’ archiving, assessment and analysis of the archaeological records and materials; publication of results of that work within 24 months of completion of construction assessment analysis and publication of material within 24 months of completion of construction.

Sections 6.8, 6.9

(d) Training procedures for all contractors are to be undertaken in advance of construction, regarding the possible presence of cultural or archaeological sites or material, what these sites or material may look like, and the relevant provisions of the Historic Places Act 1993 [now the Heritage New Zealand Pouhere Taonga Act 2014] if any sites or material are discovered;

Sections 4.2, 5

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(e) Cross references to the specific sections in the Communication and Consultation Plan which details how the Auckland Council Heritage Department, the New Zealand Historic Places Trust [now HNZPT], mana whenua (see condition 8) are consulted, and the communication with the general public on the management of the adverse effects relating to archaeology.

1.5

Section 7

Sustainability

The Link Alliance is seeking an Infrastructure Sustainability Council of Australia (ISCA) Infrastructure Sustainability (IS) Rating. Further details can be found in the CEMP and Sustainability Rating Management Plan. Project sustainability requirements that relate directly to this HC DWP (Archaeology Section) are included in Appendix C. These requirements are imbedded within this DWP to ensure that sustainability is a key focus and ‘the way we do things’.

In some cases the IS requirements and sustainability goals enhance the designation and consent requirements.

1.6

DWP Review and Updates

This HC DWP (Archaeology Section) is a live document that will be reviewed at least annually, or as a result of a material change to the project, or to address unforeseen adverse archaeological effects arising from construction, or unresolved complaints. Any material changes to the HC DWP (Archaeology Section) must be approved by Auckland Council prior to any on-site activity reliant upon the change commencing. Refer to the CEMP for further detail on the review and updating process.

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2.

Karangahape Main Works 2.1 Overview of Works

The Karangahape Station main works are described in detail in the CEMP and summarised in Table 2-1 below.

It should be noted that construction of the Mercury Lane and Beresford Square station entrance superstructures and other permanent above-ground structures, along with the internal station fit out and public realm reinstatement works will form part of separate DWPs to be prepared in the future prior to the commencement of the respective works.

Table 2-1: Overview of Main Works Construction Activities

Works location

Overview of construction activities

General establishment works

• Installation of hoardings and temporary traffic management around active construction zones

Mercury Lane

• Construction of the temporary shaft at Mercury Lane to provide access for tunnel construction. Works will include excavation, piling and construction of the above ground acoustic enclosure surrounding the shaft.

• Mining of platform tunnels (likely using a road header) from the temporary shaft through to the Beresford Square station box.

• Diaphragm wall construction and piling around the perimeter of the Mercury Lane station box.

• Construction of the Mercury Lane station box, involving: top down construction works - excavation and floor slab construction; and bottom up construction works - rock breaking and excavation, construction of floor slab construction and rail platforms.

• Off-site disposal of excavated material from the temporary shaft construction, mining of platform tunnels and station box construction.

Beresford Square

• Diaphragm wall construction and piling around the perimeter of the Beresford Square station box.

• Construction of the Beresford Square station box, involving: top down construction works - excavation and floor slab construction; and bottom up construction works - rock breaking and excavation, construction of floor slab construction and rail platforms.

• Off-site disposal of excavated material from the station box construction.

Construction Support Areas

• Continued establishment of Construction Support Areas (CSA) at Beresford Square and Mercury Lane (following on from the establishment works undertaken as part of the early works and authorised by the early works plans).

This will include the bentonite plant, water treatment plant and temporary spoil storage areas.

• Operation of the Beresford Square and Mercury Lane CSAs.

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3.

Historic Heritage Values – Archaeology 3.1 Archaeological Sites in the Project Area

No archaeological sites have been identified within the wider Karangahape Station project area.

However, a house and a Sunday school were located in the Beresford Square Construction Support Area (CSA) in the 19th and early 20th centuries, which may have associated subsurface remains. The only other area of potential archaeological interest is the properties at 9A, 9B, 9C, 11-13 and 17-21 Mercury Lane, which are known to have contained buildings during the 19th to mid-20th century. It is possible that 19th and early 20th century archaeological remains may be present subsurface on these properties.

During the main works, the properties at 9-23 Mercury Lane and 20 East Street will be affected by earthworks for the Mercury Lane shaft and station entrance, which may expose and remove archaeological remains. The remaining works will be located within the road reserve of Mercury Lane, Pitt Street and Beresford Square. Within the road reserves, there is only limited potential for impacting on subsurface pre-1900 archaeological remains or significant 20th century historic heritage remains, although the possibility of encountering early drainage infrastructure or earlier street surfaces cannot be excluded.

The possibility that subsurface pre-1900 or early 20th century archaeological remains may be exposed during the main works will be managed through the implementation of this HC DWP (Archaeology Section) and an Archaeological Authority (no. 2017/793) granted by Heritage New Zealand Pouhere Taonga (HNZPT) for the wider CRL project (see Appendix A).

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4.

Roles and Responsibilities 4.1 Project Archaeologist Roles and Responsibilities

The Project Archaeologist will be responsible for ensuring that the archaeological requirements set out in this HC DWP (Archaeology Section) and in the Heritage New Zealand Pouhere Taonga Act 2014 (HNZPTA) authority are fulfilled. This includes ensuring that an archaeologist is available to monitor earthworks where required and respond to call-in by the Link Alliance construction team if any suspected archaeological remains are exposed. It also includes ensuring that the archaeologist adheres to the construction team’s site safety requirements, and that a Site Specific Safety Plan for the main works at Karangahape Station is prepared.

The Project Archaeologist will also be responsible for reporting to Auckland Council and HNZPT as outlined in this section regarding the archaeological work.

4.2 Contractor Briefing Prior to the start of the main works, the Project Archaeologist and Mana Whenua representatives will meet with the Link Alliance (and contractor(s)) on site to brief them on the archaeological and cultural requirements for the works.

The Project Archaeologist must be given at least two weeks’ notice by the Link Alliance that works are about to begin. The Alliance shall keep the Project Archaeologist informed as to the work schedule and any changes that may arise.

As set out in sections 6.2, 6.3 and 6.5 of this HC DWP (Archaeology Section), the Link Alliance will temporarily cease works and call in the Project Archaeologist if suspected archaeological remains are exposed during works when an archaeologist is not present, so that the remains can be assessed and recorded.

As set out in sections 6.3 and 6.7 of this HC DWP (Archaeology Section), the Link Alliance will give the Project Archaeologist sufficient time and opportunity for the recording and sampling of any archaeological features or deposits encountered, and will not resume works in the immediate vicinity until the archaeological work is completed.

4.3 Key Personnel Table 4-1 outlines the key personal involved in the implementation of this HC DWP (Archaeology Section), including the Project Archaeologist, Mana Whenua, Auckland Council Heritage Team and HNZPT and key Alliance personnel.

Table 4-1: Key Personnel

Title Project Archaeologist (and Approved Archaeologist under the HNZPT Authority for the Project)

Name Rod Clough - Clough & Associates Ltd

Auckland Council Cultural Heritage Implementation Team Leader

Chris Mallows

Auckland Council Compliance Monitoring Officer

Timothy O’Grady

HNZPT Mid-Northern Regional Archaeologist

Greg Walter

Mana Whenua representatives (if remains relating to Maori occupation are found)

Victoria Jessop – General Manager Corporate Relations and

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Historic Character (Archaeology Section) Delivery Work Plan Title

Name Communications, City Rail Link Limited (first contact)

Karangahape Station Project Manager

Jonathan Hill

Karangahape Station Construction Manager

Dan Trotman

Environmental and Sustainability Manager

Sarah Sutherland

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5.

Training 5.1 Pre-Construction Briefing

Prior to the start of works, the Project Archaeologist will provide a briefing on the archaeological requirements contained within this section of the HC DWP (Archaeology Section) to the Link Alliance and all staff working on the project. These requirements include but are not limited to: • • • •

Statutory requirements under the HNZPTA; How to recognise archaeological material (of pre-1900 or early 20th century date) if exposed during excavation works; What actions need to be taken should any archaeological material or remains be exposed or encountered; and Who to contact in the event of archaeological material being exposed, if the Project Archaeologist is not present on site at the time.

Mana Whenua representatives will also be invited to provide a briefing on cultural requirements in case archaeological remains relating to Māori occupation are exposed during the works.

5.2 Toolbox Talks The Project Archaeologist will attend toolbox meetings as required during the course of the works, the purpose of which will be to remind staff of the project archaeological requirements and to ensure that any new staff joining the project team are fully briefed prior to the commencement of works.

5.3 Training Records A record of attendance at briefing and training sessions will be held by the Environmental and Sustainability Manager as part of the project training record (refer to the CEMP for further detail in this regard).

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6.

Archaeological Procedures and Mitigation Measures 6.1 Mercury Lane Shaft and Station Entrance

An archaeologist will be present to monitor the initial earthworks for the construction of the Mercury Lane access shaft and station entrance within the properties at 9-23 Mercury Lane and 20 East Street (see Figure 6-1).

If any subsurface archaeological features (of pre-1900 or early 20th century date) are exposed, they will be investigated, sampled and recorded by the archaeologist.

Figure 6-1. Location of the area where initial earthworks are to be monitored by an archaeologist (red dashed outline)

6.2 Archaeological Discovery Protocols As noted in Section 3.1, there is only limited potential for subsurface archaeological remains to be exposed elsewhere during the main works, which apart from the Mercury Lane shaft/station entrance, will be limited to the road reserve (namely Beresford Square and Pitt Street). However, the possibility that archaeological features and deposits may be exposed during works will be managed and mitigated by call-in by the construction team; the recording of any remains exposed; and the recovery of samples of archaeological material for further analysis.

If suspected archaeological remains (of pre-1900 or early 20th century date) are encountered, works will stop in the immediate vicinity of the find until the Project Archaeologist can assess the site.

6.3 Discovery of Archaeological or Cultural Remains If in situ archaeological features or deposits (of pre-1900 or early 20th century date) are identified during the main works, the Project Archaeologist will stop works in the immediate vicinity by notifying the Karangahape Station Project Manager or the Karangahape Station Construction Manager and will investigate and record the remains, in accordance with accepted archaeological practice as set out in this HC DWP and the requirements of the HNZPT Authority.

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Historic Character (Archaeology Section) Delivery Work Plan If remains indicating Māori occupation are exposed the protocols outlined in Section 6.4 of this HC DWP will be followed.

If significant archaeological features or deposits are identified during the main works the Auckland Council (Cultural Heritage Implementation Team Leader and Compliance Monitoring Officer), HNZPT, and Mana Whenua will first be notified by the Project Archaeologist, and the remains will then be investigated and recorded in accordance with accepted archaeological practice and as directed by HNZPT, if of pre-1900 date. Any significant remains of 20th century date will also be investigated and recorded as directed by the Auckland Council Cultural Heritage Implementation Team Leader.

6.4 Mana Whenua Protocols 6.4.1. Archaeological Remains If archaeological remains relating to Māori occupation are exposed, the Project Archaeologist will inform the appropriate Mana Whenua representatives.

6.4.2. Kōiwi Tangata (Human Remains) If bone material is identified that could potentially be human, the following protocol will be adopted: • •

•

• •

• •

•

Earthworks/investigation will cease in the immediate vicinity while an archaeologist establishes whether the bone is human; If it is not clear whether the bone is human, work shall cease in the immediate vicinity until the Auckland University reference collection and/or a specialist can be consulted and a definite identification made; If bone is confirmed as human (kōiwi tangata), the archaeologist will immediately contact the Mana Whenua representatives, HNZPT, the NZ Police Auckland Central crime squad and Auckland Council Cultural Heritage Implementation Team Leader and Compliance and Monitoring officer; The site will be secured in a way that protects the kōiwi as far as possible from further damage; Once the NZ Police and HNZPT are satisfied that the remains are archaeological, consultation will be undertaken between the Mana Whenua representatives, the HNZPT Regional Archaeologist, the Auckland Council Cultural Heritage Implementation Team and CRLL to determine and advise the most appropriate course of action. No further action will be taken until responses have been received from all parties, and the kōiwi will not be removed until advised by HNZPT; The Mana Whenua representatives will advise on appropriate tikanga and be given the opportunity to conduct any cultural ceremonies that are appropriate; If the Mana Whenua representatives are in agreement and so request, the bones may be further analysed by a skilled bio-anthropological specialist prior to reburial, in line with the HNZPT Guidelines Kōiwi Tangata Human Remains (2010); and Activity in that place can recommence as soon the bones have been reinterred or removed and authorisation has been obtained from HNZPT.

6.4.3. Taonga (Māori Artefacts) Māori artefacts such as carvings, stone adzes, and greenstone objects are considered to be taonga (treasures). These are taonga tūturu within the meaning of the Protected Objects Act 1975. Taonga Page 15

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Historic Character (Archaeology Section) Delivery Work Plan may be discovered in isolated contexts, but are generally found within archaeological sites. If taonga are discovered the following protocols will be adopted: •

•

•

•

•

The area containing the taonga will be secured in a way that protects the taonga as far as possible from further damage, consistent with conditions of the Archaeological Authority (no. 2017/793); The Project Archaeologist will then inform HNZPT, Auckland Council and the nominated Mana Whenua representatives so that the appropriate actions (from cultural and archaeological perspectives) can be determined; These actions will be carried out within the stand down period specified below, and work may resume at the end of this period or earlier if advised by HNZPT or the Project Archaeologist; The Project Archaeologist will notify the Ministry for Culture and Heritage of the find within 28 days as required under the Protected Objects Act 1975. This can be done through the Auckland War Memorial Museum; and The Ministry for Culture and Heritage, in consultation with Mana Whenua, will decide on custodianship of the taonga. If the taonga requires conservation treatment (stabilisation), this can be carried out by the Department of Anthropology, University of Auckland (09-3737999) and would be paid for by the Ministry. It would then be returned to the custodian or museum.

6.5 Recording of Features and Deposits Any in situ pre-1900 or significant 20th century archaeological deposits or features exposed during the main works will be investigated, recorded and sampled consistent with accepted archaeological practice as set out in this DWP and in accordance with the requirements of the HNZPT Authority (no.

2017/793). Detailed notes of each feature and deposit will be made, photographs will be taken, and all subsurface features located will be detailed on the site plan. Stratigraphic drawings and photographs of features and deposits will be undertaken.

Sufficient time and opportunity will be allowed for the recording and sampling of any archaeological features or deposits encountered (see Section 6.7). The archaeologist(s) will record the archaeological feature(s) or deposit(s) as quickly as possible so that works may resume without undue delay.

6.6 Artefact Management Plan The locations of artefact deposits will be marked on the site plan and retained for analysis. If large numbers of artefacts relating to European occupation are exposed, a representative sample will be retained.

The process for storage, analysis and display shall be as follows: • • •

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Artefacts will be bagged, labelled by date and context, and may initially be stored in a secure on-site lock-up facility provided by the construction team; As soon as is feasible, artefacts will be transferred to the Project Archaeologist’s offices for cleaning, recording and analysis; Any significant artefacts and/or artefacts meriting public display, will be identified by the Project Archaeologist and, in consultation with the relevant stakeholders, will be considered | Karangahape Station Main Works

Historic Character (Archaeology Section) Delivery Work Plan

• •

either for display within the new Karangahape Station or for donation to the Auckland War Memorial Museum, as appropriate; Less significant finds will be disposed of following recording and analysis, subject to CRLL agreement, unless a museum is willing to accept the collection; and Any wooden or fibre artefacts of significance will be wrapped/contained as required for short term preservation and analysis.

Artefacts will be conserved by appropriate specialists if this is recommended by the Project Archaeologist based on the level of significance and suitability for display or addition to museum collections.

Any Māori artefacts that meet the criteria of taonga tūturu under the Protected Objects Act 1975 will in addition be managed as set out under the Mana Whenua Protocols (Section 6.4.3 of this DWP).

6.7 Stand Down Periods Depending on what is revealed by the works, stand down periods involving the ceasing of works in the immediate vicinity may be required at various stages to allow for archaeological work to be carried out or for consultation with the appropriate parties.

Stand down will require works to cease only in the immediate vicinity of the feature or find, and work may proceed in other areas. The maximum stand down periods in Table 6-1 will apply but works may be resumed earlier if the required work has been completed.

Timeframes need to be flexible enough to ensure that archaeological works are completed as necessary to ensure that the procedures in this DWP and the conditions of the Archaeological Authority (no. 2017/793) are met.

Table 6-1: Maximum stand down periods

Trigger

Stand Down Period

Requirements

Release

Archaeological feature, deposit or artefacts

Maximum 2 days in each location, but work may continue in areas where no remains are identified.

Sufficient time must be allowed for the archaeologist to investigate and record the remains.

Work resumes when the Project Archaeologist advises the Site Manager that work is completed.

Significant archaeological feature, deposit or artefacts, or significant 20th century historic heritage remains, that were not anticipated

Up to three days for a response from HNZPT for pre-1900 remains, and in most circumstances up to three days for any detailed investigation required.

Up to three days for a response from Council if significant post-1900 historic heritage remains are found, and in most circumstances up to three days for any

The likely requirement is a mitigation investigation and/or recording by standard archaeological techniques, but this will be advised by HNZPT, or

by Auckland Council if the find is of 20th century date. Note that there may be special circumstances in which a longer period of stand down for investigation is deemed necessary by

Work resumes when the Project Archaeologist advises the Site Manager that work is completed.

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Historic Character (Archaeology Section) Delivery Work Plan

Trigger

Stand Down Period

Requirements

Release

detailed investigation required.

either HNZPT or Auckland Council.

Human bone found

As agreed between the project manager, HNZPT, Auckland Council and Mana Whenua.

HNZPT and NZ Police to be satisfied that kōiwi identification is correct.

Mana Whenua representative(s) to organise reinterment or removal of bones from site and appropriate cultural ceremonies.

Work resumes following reinternment or removal of bones from site and when authorisation from HNZPT has been received.

Taonga or archaeological remains of Māori origin found

Up to three days

HNZPT and Mana Whenua representative(s) to be consulted on appropriate action.

Archaeological recording as required.

Work resumes when the Project Archaeologist or HNZPT advises the Site Manager that work is completed

6.8 Post Excavation Analysis and Archiving Artefacts and faunal material retained from the site will be analysed and recorded by the appropriate specialists with the results presented in the final archaeological report, which will be provided to the parties specified in Section 6.9 of this DWP for information and archiving.

Depending on what is exposed, consideration will be given to displaying archaeological material such as artefacts within the new Karangahape Station.

Any artefacts of significance relating to European occupation of the area that are recovered from the site that are not required for display may be offered to the Auckland Museum in consultation with the Link Alliance and City Rail Link limited.

Any Māori artefacts (taonga tūturu) will be dealt with in accordance with the Mana Whenua protocols outlined in Section 6.4 of this DWP and the requirements of the Protected Objects Act 1975.

Archaeological material identified by the Project Archaeologist as being appropriate for Carbon 14 dating will be sent to the University of Waikato’s Radiocarbon Dating Laboratory for age determination.

6.9 Reporting Requirements During the course of the project, information on any archaeological discoveries will be provided to the Auckland Council Cultural Heritage Implementation Team and Compliance Monitoring Officer, HNZPT and Mana Whenua.

Opportunities for provision of information to the public via on site and media releases will be taken in consultation with those parties, depending on whether any significant archaeology is exposed during earthworks.

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Historic Character (Archaeology Section) Delivery Work Plan In compliance with the requirements of HNZPT Authority 2017/793, a written summary report will be provided by the Project Archaeologist to the Link Alliance, HNZPT, Auckland Council (Cultural Heritage Implementation Team and Compliance Monitoring officer) and Mana Whenua within 20 days of the completion of the project works. A full and final monitoring report will be completed within 12 months of the end of the project works, and will be provided to the Link Alliance, HNZPT, the Auckland Council (for inclusion in the Cultural Heritage Inventory), the NZ Archaeological Association Central File, Mana Whenua and any other parties specified in the designation conditions and archaeological Authority. On completion of the final report, the Project Archaeologist will update the archaeological site records on the NZAA Site Recording Scheme (ArchSite database) and Auckland Council Cultural Heritage Inventory with a summary of the results and reference to the final report.

Depending on the significance of the archaeological information recovered, articles may be submitted to academic journals for publication.

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Historic Character (Archaeology Section) Delivery Work Plan

7.

Communication and Consultation

Refer to Sections 6.5.5, 7.2.4 and 7.2.7 of the main works Communication and Consultation Plan (CCP) attached to the CEMP with respect to consultation with the Auckland Council Cultural Heritage Implementation Team, HNZPT, Mana Whenua and the public in relation to archaeological aspects of the Project.

Matters to be discussed with project stakeholders will include: • • •

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Opportunities for public observation of excavations during the main works; Opportunities and avenues for providing information to project stakeholders and the public regarding archaeological discoveries during the main works; and The display of archaeological material and artefacts within the new Karangahape Station, if material meriting public display is recovered during the main works.

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Historic Character (Archaeology Section) Delivery Work Plan

Appendix A: HNZPTA Requirements In addition to the requirements of CRL designation 2500-4, and this HC DWP (Archaeology Section) prepared in accordance with CRL designation condition 42, all modification and investigation of pre1900 archaeological remains are subject to the archaeological provisions of the Heritage New Zealand Pouhere Taonga Act 2014 (HNZPTA) and must be carried out in accordance with the conditions of an Authority issued by HNZPT under that Act. A general Authority for the Aotea Station to Mt Eden Station/NAL works, including modification of any subsurface remains exposed by the Karangahape Station main works including the CSA, has been granted by HNZPT (Authority No. 2017/793). The Authority sets management procedures in place for archaeological discoveries.

Care has been taken to ensure that the archaeological procedures set out in this DWP are consistent with the conditions and requirements of the Authority issued by HNZPT.

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Historic Character (Archaeology Section) Delivery Work Plan

Appendix B: Record of CLG, IPR and Auckland Council Comments B1 CLG Comments A Karangahape CLG meeting was held on 12 November 2019 to discuss the Karangahape Station main works and for the CLG to provide comments / feedback on the CEMP and sub-plans, including this HC DWP (Archaeology Section).

No comments were received from the CLG on this HC DWP (Archaeology Section).

B2 IPR Comments An Independent Peer Review of the draft HC DWP (Archaeology Section) was undertaken by Matthew Campbell, from CFG Heritage. The comments received are as follows: DWP Section

6.2

6.7

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Comment

Resolution

A table of acronyms should be provided at the start of the document

No changes made. Acronyms have been checked and are all spelled out in full when first used.

There is a missing or broken MS Word link / reference, and a typo at the end of line 1 Stand Down Periods This section states that “timeframes need to be flexible” and section 6.5 states that “sufficient time and opportunity will be allowed for the recording and sampling of any archaeological features or deposits encountered.” However, Table 6.1 provides for Maximum Stand Down Periods, which is incompatible with flexible timeframes and sufficient time and opportunity. Row 1 says both “Maximum 2 days” and “Sufficient time.” If sufficient time turns out to be 3 or more days, this results in a lack of certainty for the project. Condition 3 of HNZPT authority 2017/793 states that “All archaeological evidence encountered during the exercise of this authority must be investigated, recorded and analysed in accordance with current archaeological practice.”

Current archaeological practice is potentially time consuming and, while it is understood that the archaeologist will make every reasonable effort to clear the area as quickly as possible, this may not always be possible within the time frames outlined on Table 6.1.

This table also states “Note that there may be special circumstances in which a longer period of stand down for

This appears to have been corrected in the current version

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The contents of Table 6.1 are consistent with the Archaeological Management Plan approved under the Heritage NZ Authority (2017/793) and have been standard for previous Authorities and Heritage Management Plans approved by Council for other projects of this type, where extensive archaeological remains are not expected (i.e. in modified urban environments).

We do not consider there is incompatibility between the fact that the contractor’s timeframes need to be flexible, and the maximum stand down periods given, as the necessary flexibility sits within those timeframes. Only limited remains are likely to be encountered during the enabling works, and 2 days has always proved sufficient for the archaeological team to investigate and record any feature encountered in such modified urban contexts, in accordance with current archaeological practice. No change has therefore been made to Row 1 of the table.

In Row 2 column 2 of the table relating to significant discoveries, the stand down period is: “Up to three days for a response from HNZPT for pre-1900 remains, and in most circumstances up to three days for any detailed investigation required.

Up to three days for a response from Auckland Council Cultural Heritage

Historic Character (Archaeology Section) Delivery Work Plan

DWP Section

Comment

Resolution

investigation is deemed necessary by either HNZPT or Auckland Council.”

This is potentially confusing.

I suggest that Table 6.1 be changed to Stand Down Triggers, the second column deleted and the table reformatted to include relevant HNZPT, Council and mana whenua response times. The Archaeological Management Plan should be also be updated under Condition 1 of authority 2017/793.

Implementation Team if significant post1900 historic heritage remains are found, and up to three days for any detailed investigation required.”

Note that the wording for pre-1900 remains states ‘in most circumstances up to three days’, while the Requirements column states that “there may be special circumstances where a longer period of stand down for investigation is deemed necessary by either Heritage NZ or Council”.

We consider these statements to be consistent and compatible, with column 3 providing the explanation for the proviso in column 2.

However, we have amended the second paragraph of Row 2 column 2 to provide a similar proviso to post-1900 remains, as this was not consistent with the statement in column 2.

We do not consider that any changes need to be made to the Archaeological Management Plan issued under Authority 2017/793, as this table remains unchanged except where it relates to Auckland Council requirements.

In general, the DWP is clear and comprehensive. It largely covers all necessary roles, responsibilities and archaeological procedures clearly and concisely.

With the exception of the matters outlined above, the DWP is fit for purpose

Noted.

B3 Auckland Council Comments A draft of this HC DWP (Archaeology Section) was provided to Auckland Council for review. The Council reviewer was satisfied with the HC DWP (Archaeology Section) and did not request any changes.

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Historic Character (Archaeology Section) Delivery Work Plan

Appendix C: ISCA Requirements The table below identifies the ISCA Credit Requirements relevant to this HC DWP (Archaeology Section) and where they are addressed in the document.

Credit

Requirement*

Relevant Section of HC DWP (Archaeology Section)

HER-1

Measures to minimise the adverse impacts to heritage during construction have been identified and implemented.

3, 4, 5 and 6

HER-1 Level 1

Community heritage values have been identified through consultation and integrated into studies.

3, 4.1, 7, Appendix A and Appendix B

HER-2

Monitoring of heritage is undertaken at appropriate intervals during construction and operation.

4 and 6

Level 1

Level 1

Refer to the ISCA Rating Tool for full details of the requirements

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Other relevant Information / Comments

Communication and Consultation Plan