Coastal Hazard Adaptation Strategy

Stewart Pentland Director Planning and Economic Development Kate Isles Manager Strategic Planning and Economic Development

Moreton Bay Regional Council 22 May 2017

MBRC 2017-2022 Corporate Plan

MBRC POLICY FRAMEWORK

Total Water Cycle Management Strategy

MBRC WATER STRATEGY

Floodplain Risk Management Strategy

Catchment Management Plans (13 catchments)

Floodplain Risk Management Study

Regional Storm tide and Erosion Prone Area

Database

Regional Floodplain Database

Total Water Cycle Management

Implementation Plan

Total Water Cycle Management Plan

Floodplain Risk Management Plan

Coastal hazard Adaptation Plan

WATER QUALITY COASTAL FLOOD

All documents available at: https://www.moretonbay.qld.gov.au/uploadedFiles/moretonbay/development/planning

Coastal Area Risk Management Study

Coastal Areas Risk Management Strategy

MBRC Planning Scheme

Through the 2015 draft and now MBRC Planning Scheme, Council has committed to the development of a Coastal Hazard Adaptation Strategy

•  QCoast2100 officially launched 2 June 2016

•  In November 2016 - MBRC awarded $500k towards a Coastal

Hazard Adaptation Strategy (CHAS); •  Program website: http://www.qcoast2100.com.au •  Council has formed Steering Group – Chaired by Clr Flannery.

Cr Savige also on the Steering Group. •  Council appointed Project Manager – David Meyer

QCoast2100 – Context

“The Coastal Hazard Adaptation Program (QCoast2100) will support all Queensland local governments impacted by existing and future

coastal hazards to advance adaptation planning.”

CHAS - Planning Process

Stakeholder communication and engagement Plan

Scope coastal hazard issued for the area of interest

Identify areas exposed to current and future coastal hazards

Identify key assets in coastal hazard areas

Risk Assessment

Identify potential adaptation actions

Socio-economic appraisal of adaptation options

Strategy development, implementation and review

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•  Establishment of project website (underway)

•  Preparation of a Communication & Engagement Plan (underway)

•  Identification of stakeholders (underway)

•  Implementation of a Communication & Engagement Plan

Phase 1 – Communication & Engagement Plan (commenced)

This phase sets Council’s roles and responsibilities in communicating and engaging within the organisation and with other key stakeholders through the preparation of a

stakeholder engagement plan

MBRC have appointed consultants to support the preparation of the Community and Engagement Plan. Draft Plan required to be

delivered by end of June 2017.

•  Audit of existing data availability & reliability •  Identification of internal resources & availability •  Outline project deliverables •  Initial identification of assets at risk •  Identify barriers •  Engage key stakeholders (Internal, Community, Unitywater, DTMR etc) •  Collate decision making needs of the organisation/s •  Identify Council policies, strategies & plans which might be affected/

benefit

Phase 2 – Scope coastal hazard issues

This phase identifies the key questions, a broad understanding of the coastal hazard issues and risks to tangible and intangible assets, available resources, capabilities and

constraints to undertake a CHAS

-  Identification and audit of seawalls (complete);

-  Erosion prone area modelling (commence discussions with EPA late 2017);

-  Storm tide modelling (commenced – June 2018);

-  Sea level rise modelling (HAT 2100 – July 2017, storm tide June 2018).

Phase 3 – Identify areas exposed to current and future hazard

This phase uses models of storm tide, coastal erosion and permanent inundation to delineate the areas exposed to coastal hazards and the scale of the exposure. This

information is then used to identify exposed tangible and intangible assets and the risk they may be subject to.

PROJECT – Seawall Audit

Scope- • Conduct assessments of the type and geographic extents of all public and private seawall within the MBRC area; • Develop a comprehensive dataset for maintenance. Includes - • Assessed the condition of 144 local government seawall assets; • Estimated and prioritised maintenance, remediation and replacement costs of each local government asset over a 50 year timescale; • Establishes a program of periodic inspections; • A maintenance plan which considers each of the 144 assets; and • Establishes a point of reference for future works on each asset group • Helps inform the assessment of the Erosion Prone Areas – FIT FOR PURPOSE MAPPING

•  Remote piloted aircraft; •  Backed up with on ground

assessment; •  Moreton Bay Regional Council

(Queensland) which won the 2017 Australian Coastal Award for Planning and Management

PROJECT – Seawall Audit

Innovative approaches to Seawall condition assessment

PROJECT – Seawall Audit

•  Identify all asset types within the coastal zone

•  Identify asset owners

•  Engaging with internal and external stakeholders

•  Valuation of tangible and intangible assets (monetary and non-monetary)

•  Initial screening of unviable options

Phase 4 – Identify key assets potentially impacted

This phase identifies key physical, natural, social, economic and cultural assets which can be directly or indirectly impacted by coastal hazards. These should be

classified as tangible and intangible assets and may include building and infrastructure, land and reserves, social, economic, environmental and cultural

structures and functions

•  Develop a risk assessment framework across multiple asset types / timelines.

•  Undertake the risk assessment

•  Average annual damages curves

•  Tangible and intangible losses and damages

Phase 5 – Risk assessment

This phase estimates the level of risk on those key assets within the coastal hazard area which can be influenced by coastal hazards. It provides information on the level of risk on assets as a combination of probability of occurrence of

a given event and the expected consequences on the asset.

•  Workshops with internal and external stakeholders •  Assessment criteria for screening considering:

1.  Benefits 2.  Feasibility and legality 3.  Costs 4.  Adverse impacts (environmental, social, economic)

Output: Proposed adaptation options report

Phase 6 – Identify potential adaptation options

This phase considers what options are available and most appropriate for the specific context of the identified assets, their location and risks. It requires good on-ground

knowledge and an awareness of other future trends that may alter the current context.

Multi-criteria analysis (MCA) •  Using the criteria developed in Phase 4 assign weights to each criteria and score the options

against these criteria in collaboration with stakeholders •  Criteria should reflect environmental, social, economic and cultural benefit to benchmark the

adaptation option •  Criteria should reflect the ability of the option to reduce the risk on the asset •  The output of the MCA should be a reduced number of adaptation options Cost-benefit analysis (CBA) •  Use the monetary cost of the adaptation option identified in Phase 6 •  Compare the cost of adaptation estimated in Phase 6 with the consequence of a loss or

impairment estimated in Phases 4 and 5. •  Discount the costs and benefit to the present value using an agreed discount rate •  Include information about the optimal timing for investment.

Phase 7 – Socio-economic appraisal of adaptation options

This phase provides an understanding of the positive or negative impact of an adaptation option on identified and agreed social, environmental and economic criteria. This information will support the organisation’s decision-making when

selecting the final preferred option.

•  Summary document of all previous phases and selected adaptation options

•  Monitoring and evaluation framework

•  Implementation strategy (can be internal only) including decision triggers, thresholds, estimated annual resourcing and funding strategy

Phase 8 – Strategy development, implementation and review

This phase will result in a final strategic document that summarises the findings of the phases of the CHAS, the optimal timeframe for the implementation of the selected adaptation options; how they will/may be funded and lastly the criteria for review of

various components of the CHAS.

Project Timeline

2016/17 2017/18 2018/19 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Phase 1 Communication & Engagement

Phase 2 Scoping Phase 3 Storm Tide Phase 1

Storm Tide Phase 2

Seawall Condition Assessment

Erosion Prone Area Phase 4 Assets at risk identification

(Council and Non-Council)

Natural Areas at risk

Phase 5 Risk assessment

Phase 6 Adaptation options

Phase 7 Socio-economic analysis

Phase 8 Strategy

•  Expected completion June 2019