Meeting of the
Clifton to Tangoio Coastal Hazards Strategy Joint Committee
Date: 5 July 2024
Time: 10.00am
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Venue:
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Council
Chamber
Hawke's
Bay Regional Council
159
Dalton Street
NAPIER
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Agenda
Item Title Page
1. Welcome/Karakia/Housekeeping/Apologies
2. Conflict
of Interest Declarations
3. Confirmation of Minutes of
the Clifton to Tangoio Coastal Hazards Strategy Joint Committee meetung held on
14 June 2024
4. Te
Awanga erosion issues: Technical Advisory Group (TAG) review 3
5. Project
Manager's July 2024 update 5
6. Current
coastal projects update 13
7. Update
on follow-ups from previous meetings 15
Clifton
to Tangoio Coastal Hazards Strategy Joint Committee
5 July
2024
Subject: Te Awanga erosion issues:
Technical Advisory Group (TAG) review
Reason for report
1. This item introduces a
short-term concept design for the construction of groynes and gravel barriers
at Te Awanga and Haumoana beaches.
Executive
summary
2. Over the past several
months, the Te Awanga community has been advocating for the use of Ecoreef, a
new type of tiered concrete structure, for building their sea defences. The
main structures they aim to protect with this revetment are Te Awanga’s
lagoon, domain and hall. The Te Awanga community recently presented to the
Joint Committee, outlining their concerns about erosion and inundation risks,
and the proposed Ecoreef solution.
3. This initiative was
recently supported by Hastings District Council, which has arranged funding for
the initial stages of this project.
4. As the Ecoreef approach
diverges from the pathway proposed by the Coastal Strategy, an assessment is
required to determine whether the Ecoreef solution is consistent with the
direction of the Strategy and whether the works can complement (or offer an
alternative to) the proposed pathway for Te Awanga. This paper provides a
high-level assessment of these questions, initial conclusions, and proposed
future work.
Background
5. At Haumoana and Te Awanga,
two options (C2 and D2) have been developed to give effect to the
recommendations of the community panels. Option C2 consists of extending the
Tukituki groyne by 20m and carrying out operational nourishment of
52,000 m3/y. Option D2 consists of building 4 groynes and
extending the Tukituki groyne by 10m. It also includes an initial renourishment
of 239,000m3 and operational renourishment of 28,000m3/y
of gravel. Both options also include the construction of a gravel barrier
(116,869m3) for a high level of inundation protection at Te Awanga
and a low level of protection in Haumoana.
6. Ecoreef is a hexagonal
interlocking module made of reinforced concrete that has been designed for the
marine environment. The designers claim that the Ecoreef system has the ability
to control and effectively dissipate wave energy, which could provide for wave
overtopping flood protection at Te Awanga. It also allows the construction of
accesses for pedestrians as well as planting.
Preliminary findings
7. From initial analysis, the
following preliminary findings are noted.
7.1. There is a clear and urgent
need for risk mitigation works for erosion and inundation at Te Awanga,
particularly in the vicinity of the lagoon, and Hastings District Council has
made some commitments to progress these works.
7.2. The community has
undertaken significant work to consider and compare alternatives, prior to
confirming their preferred Ecoreef solution.
7.3. The Ecoreef product appears
to be able to provide a solution for armouring the most vulnerable parts of the
Te Awanga coastline.
7.4. As a gravel-filled
structure, the Ecoreef product appears to complement the gravel nourishment
proposal at Te Awanga, and it could function to strengthen the gravel crest and
provide a ‘backstop’ solution during periods of erosion.
7.5. Consideration will need to
be given to the effects of scouring of the edge of the structure / downstream
erosion.
7.6. Consideration will need to
be given to the cumulative financial impact of funding the Ecoreef proposal in
addition to gravel nourishment and groynes as currently proposed by the Strategy.
Conclusions and further work
8. Overall, the Ecoreef
proposal appears to offer a solution that can complement the direction of the
Strategy.
9. By providing a solid /
structural core to key parts of the beach crest, it may offer an opportunity to
reduce the level and frequency of beach nourishment proposed by the Strategy,
assuming beach scouring and edge effects are not significant. Additional
analysis will be required to determine whether this is the case.
10. Actual and potential
adverse effects from adding a hard structure to the beach will need to be
considered.
11. For now, Hastings District
Council has confirmed funding for the initial stages of the Ecoreef proposal
and proposes to advance the proposal through detailed design and resource
consenting processes.
12. Assuming the Ecoreef
proposal proceeds to construction, and once the Strategy is adopted, further
work can be completed to assess how beach nourishment and groynes under the
Strategy can work with and alongside the existing structure.
13. A key consideration will be
how community consultation on the Strategy accommodates (or not) the Ecoreef
proposal, alongside the pathway recommended by the community panels. Staff
advise that the Strategy acknowledges the alternative Ecoreef solution is in
development, and that the final shape and form of the Te Awanga solution is
informed by and responsive to any solution advanced by Hastings District
Council in the interim.
Decision-making process
14. Staff have assessed the
requirements of the Local Government Act 2002 in relation to this item and have
concluded that, as this report is for information only, the decision-making
provisions do not apply.
Recommendation
That
the Clifton to
Tangoio Coastal Hazards Strategy Joint Committee receives and notes the Te
Awanga erosion issues: Technical Advisory Group (TAG) review staff report.
Authored
by: Approved
by:
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Dr Joao Albuquerque
Coastal Specialist
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Chris Dolley
Group
Manager Asset Management
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Attachment/s There are no attachments
for this report.
Clifton
to Tangoio Coastal Hazards Strategy Joint Committee
5 July
2024
Subject: Project Manager's July 2024
update
Reason for report
1. This report provides an
update on project-related matters including timeframes, budgets and tracking
towards milestones.
Project dashboard
2. The project dashboard
(Table 1) is provided to summarise current project status for budget, timeline
and all eight Strategy Workstreams (WS). An assessment of each project element
is made on a ‘traffic light’ basis, with a brief commentary
provided to explain the rating given.
3. There are no status changes
to report in this period.
Table 1: Project Dashboard Report: July 2024
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Status:
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 On Track
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 Under
Stress
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Key Risk
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Metric
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Status
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Commentary
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Project Budget
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2023/2024 budget underspent relative to forecast.
Carryover unspent funds to 2024/2025.
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Project Timeline
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September 2024 target for notifying proposed Strategy
on track to be achieved. However, ‘Key Risk’ status assigned to
acknowledge continued delays that have occurred to date in progressing the
Strategy and the challenges and uncertainty for communities experiencing
ongoing effects from coastal hazards.
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WS1:
Funding / Governance
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Funding model work progressing. Refinement underway
with Joint Committee prior to HBRC taking lead role to finalise. Status
reflects complexity of challenge to develop a principled and practical
funding model, and current financial environment.
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WS2: LGA Consultation
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LGA Consultation requirements (Section 16 / LTP
amendment) on track to be achieved.
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WS3: Comms & Engagement
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Comms and engagement plan for early engagement phase in
implementation.
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WS4: Design
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Gravel nourishment feasibility assessment completed,
confirming gravel is available to support beach nourishment activities
although required volumes particularly for capital nourishment are high.
CoastSnap on track for deployment in July/August.
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WS5: Mātauranga Māori
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External contractor engaged to provide expertise and
capacity. PSGEs have confirmed capacity constraints are limiting ability to
engage in Strategy development at this time. Desktop work to develop draft
cultural values frameworks based on existing information underway. Outcome to
be provided to PSGE’s in the first instance for review.
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WS6: Coastal Ecology
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Draft coastal ecology monitoring plan has been received
and reviewed by HBRC science team. Mana Whenua engagement sought to expand /
refine monitoring plan. Recommended monitoring is currently cost-prohibitive.
TAG working on options to progress.
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WS7: Regulatory
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Discussion document on key regulatory matters for the
Strategy to drive through local planning frameworks presented to Joint
Committee. Outcome now reflected in Strategy drafting.
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WS8: Signals and Triggers
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Thresholds development process completed and outcome
will be reflected as draft thresholds in Strategy document. TAG has assessed
the development of signals and triggers and has determined to pause further
work until the Strategy has been adopted with confirmed thresholds.
Workstream currently on hold.
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HBRC
Strategy consultation timing update
4. On 19 June 2024, TAG
workshopped the Strategy funding model with HBRC councillors. The process of
HBRC receiving recommendations from the Joint Committee and finalising the
Strategy and funding model for public consultation as an amendment to
HBRC’s Long Term Plan was also discussed.
5. HBRC provided high level
feedback on the funding model, and requested that:
5.1. HBRC staff consider optimal
timing for Strategy consultation in alignment with other initiatives underway
within HBRC, and
5.2. That a joint session is
held between the Joint Committee and HBRC to support the delivery of Joint
Committee recommendations and the commencement of HBRC’s work to refine
and finalise the Strategy for consultation.
6. HBRC staff have since
recommended that Strategy consultation take place in March 2025 (instead of
October 2024 as currently proposed). This will provide HBRC with additional
time and capacity to assess organisational impacts, finalise implementation
arrangements and create additional space from what continues to be a complex
Long Term Plan development and adoption process.
7. TAG is working through the
implications of this decision, including adjusting timeframes for early
engagement (currently planned for August), however the following draft amended
programme has been prepared.
7.1. 5 July (today) – Joint
Committee workshop to refine funding model
7.2. 19 July 2024 – Joint Committee
formal meeting to confirm recommendations to HBRC on Strategy and funding model
7.3. 31 July 2024 – HBRC Council
workshop, Joint Committee members invited to attend to support presentation of
Joint Committee recommendations to HBRC
7.4. August – December
2024
– HBRC to refine funding model and Strategy, develop consultation
document and LTP amendment
7.5. October / November 2024
– early engagement (TBC)
7.6. February 2025 – HBRC decision to commence
consultation
7.7. March 2025 – Strategy consultation.
8. This draft revised
programme does not substantially alter the work of the Joint Committee which
will largely conclude its work by the end of July. The main alteration is to
provide additional time for HBRC ahead of community consultation.
9. For completeness it is
noted that there is no communications and engagement agenda item in
today’s meeting as TAG refines the approach to align with revised
consultation timing. A communications and engagement update will be provided to
the next joint committee meeting.
Central
Government: Climate Inquiry
10. As reported in the June
meeting, the Finance and Expenditure Committee's Inquiry into climate
adaptation was announced on 10 May 2024. The approximately 150 public
submissions made to the Environment Committee’s previous inquiry into
climate adaptation, including the submission made by this Joint Committee, will
be considered by the new inquiry.
11. The Finance and Expenditure
Committee has invited new submissions. In discussion with the Joint Committee,
TAG has prepared a new submission to reinforce previous messaging and comment on at least
some of the new questions posed by the Finance and Expenditure Committee's
inquiry.
12. This new submission was
circulated as a draft to the Chair and Deputy Chairs, with a final version
lodged on 16 June 2024 (Attachment
1).
13. TAG will update the Joint
Committee on the opportunity to speak to the submission(s) as soon as
information on hearing timing is available.
Decision-making process
14. Staff have assessed the
requirements of the Local Government Act 2002 in relation to this item and have
concluded that, as this report is for information only, the decision-making
provisions do not apply.
Recommendation
That
the Clifton to
Tangoio Coastal Hazards Strategy Joint Committee receives and notes the Project Manager's July 2024 update.
Authored by: Approved
by:
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Simon Bendall
Coastal Hazards Strategy Project
Manager
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Chris Dolley
Group
Manager Asset Management
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Attachment/s
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1⇩
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Coastal
Hazards Joint Committee - Submission on the Inquiry into Climate Adaptiation
- 16Jun24
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Coastal Hazards Joint Committee -
Submission on the Inquiry into Climate Adaptiation - 16 June 2024
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Attachment
1
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Clifton
to Tangoio Coastal Hazards Strategy Joint Committee
5 July
2024
Subject: Current coastal projects
update
Reason for report
1. This report provides an opportunity
for the Technical Advisory Group (TAG) to update the Joint Committee on various
coastal projects that members have expressed an interest in keeping abreast of.
Westshore resource consent
renewal
2. No further activity in this
period.
Haumoana shingle crest
height
3. Current consent conditions
on beach scraping require any gravel scraped from the seaward side to be
replaced with similar material. However, close sources of gravel are no
longer available making this approach even more cost prohibitive. These issues
remain unresolved.
Haumoana
18
4. No further activity in this
period.
Maraetotara
River at Te Awanga
5. The Hastings District
Council has agreed to include funding of $730,000 for stage 1 of an ECO Reef in
the
Long-Term Plan
to protect the Te Awanga Lagoon’s stormwater function.
6. A separate report from TAG
on the proposal’s compatibility with the wider strategy is on the agenda.
Whirinaki
7. No further activity in this
period.
Haumoana
8. From the agreed actions
from the Cape Coast residents meeting action plan, held in September 2023.
Action
1: HBRC to
investigate and implement a more effective solution for pump station, review
levels of service.
8.1. The Heretaunga Plains
– Haumoana / Te Awanga scheme review will commence in August 2024 with a
draft report to be completed by late 2024.
Action
2: HDC to
request variation to consent to allow for shingle on the sea side of the crest
to be used for crest management.
8.2. Remains under Investigation.
Action
3: Graeme
Hansen (with support of CC community) to develop a plan about how to progress,
including how the Ecoreef solution might be funded and what the consenting
process would look like.
8.3. See update under
Maraetotara River at Te Awanga.
Hawke’s Bay Climate
Action
9. The next meeting of the
Climate Action Joint Committee is scheduled on 5 August.
10. The Joint Committee will
continue to progress a Climate Action Plan with a focus on emissions reduction
and climate adaptation.
11. Of interest to this joint
committee is that an external advisor has been engaged to scope what a Climate
Vulnerability Risk Assessment would entail and scan what is happening
nationwide in this area. The early findings will be presented to the Climate
Action Joint Committee in August.
Decision-making process
12. Staff have assessed the
requirements of the Local Government Act 2002 in relation to this item and have
concluded that, as this report is for information only, the decision-making provisions
do not apply.
Recommendation
That
the Clifton to Tangoio Coastal Hazards Strategy Joint Committee receives the Current
coastal projects update.
Authored by:
|
Simon Bendall
Coastal Hazards Strategy Project
Manager
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Approved by:
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Chris Dolley
Group Manager Asset Management
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|
Attachment/s
There are no attachments for this
report.
Clifton
to Tangoio Coastal Hazards Strategy Joint Committee
5 July
2024
Subject: Update on follow-ups from
previous meetings
Reason for report
1. This item
tracks items raised at previous meetings that require action. A list of
outstanding items is prepared for each meeting, including who is responsible
for each, when it is expected to be completed and a brief status comment.
2. Once the items
have been completed and reported to the Committee they will be removed from the
list.
Decision-making process
3. Staff have assessed the
requirements of the Local Government Act 2002 in relation to this item and have
concluded that, as this report is for information only, the decision-making
provisions do not apply.
Recommendation
That
the Clifton to
Tangoio Coastal Hazards Strategy Joint Committee receives and notes the Update
on follow-ups from previous meetings.
Authored by:
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Simon Bendall
Coastal Hazards Strategy Project
Manager
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Approved by:
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Chris Dolley
Group Manager Asset Management
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Attachment/s
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1⇩
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Follow-ups from previous meetings
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Follow-ups from previous meetings
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Attachment
1
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