Agenda of Floodplain Risk Management Advisory Committee

Reports submitted to the Floodplain Risk Management Advisory Committee to be held on Tuesday 1 December 2020.

Floodplain Risk Management Advisory Committee AGENDA AND BUSINESS PAPER

Tuesday 1 December 2020

ORDER OF BUSINESS:

CLAUSE PRECIS PAGE

ACKNOWLEDGEMENT OF COUNTRY 2

APOLOGIES 2

Confirmation of Minutes

CM-1 Confirmation of Minutes - Meeting Held 20 October 2020 2

DECLARATIONS OF INTEREST 2

Reports from Staff

RP-1 Project Updates - North Wagga Wagga 3

RP-2 Project Updates - Villages 5

RP-3 Project Updates 7

RP-4 Main City Levee Completion 16

RP-5 Agency Update - SES 18

QUESTIONS WITH NOTICE

Confidential Reports

CONF-1 Peer Review - 2018 Floodplain Risk Management Strategy and Plan 23 22

ACKNOWLEDGEMENT OF COUNTRY

APOLOGIES

Confirmation of Minutes

CM-1 Confirmation of Minutes - Meeting Held 20 October 2020

Recommendation

That the Minutes of the proceedings of the Floodplain Risk Management Committee Meeting held on 20 October 2020 be confirmed as a true and accurate record.

Attachments

1 ⇩.

Floodplain Risk Management Advisory Council minutes - 20 October 2020

DECLARATIONS OF INTEREST

Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 1 December 2020. RP-1

Reports from Staff

RP-1 Project Updates - North Wagga Wagga

Author: Peter Ross

Director: Darren Raeck

Analysis:

This report is to provide an update on the following projects:

· Flood Mitigation Option Feasibility Study for North Wagga & Floodplain Residents

Recommendation

That the Committee receive and note the report.

Report

Project 19555 – Flood Mitigation Option Feasibility Study for North Wagga & Floodplain Residents

PR1: Investigate a Voluntary House Raising & Voluntary House Purchase Scheme in Wagga Wagga Study Area, in conjunction with, North Wagga Levee Upgrade to 5% AEP level of protection WITH an equivalent upgrade to Hampden Avenue (as embankment) and conveyance improvements through Wilks Park.

L4B: Investigate North Wagga Levee Upgrade to 5% AEP level of protection WITH an equivalent upgrade to Hampden Avenue (as embankment) and conveyance improvements through Wilks Park, in conjunction with, Voluntary House Raising & Voluntary House Purchase Scheme in Wagga Wagga Study Area.

Voluntary House Raising & Voluntary House Purchase Scheme in Wagga Wagga.

This project is on hold until the peer review of the Wagga Wagga Revised Floodplain Risk Management Study and Plan is completed and both the FRMAC and Council have made a decision on a way to move forward. A preferred consultant has been determined to undertake the peer review.

Financial Implications

The total project budgets, expenditure and commitments to date are as follows:

Project name

Total Project Budget

Expended + Committed as at

14 October 2020

Budget Remaining/

(overspend)

Flood Mitigation Option Feasibility Study for North Wagga & Floodplain Residents

FM-0071 - (19555)

$234,000

$174,602

$59,398

*Main City Levee Construction – excludes expenditure incurred on the Kooringal Road Cycleway, as Council received RMS grant funding and Council Reserves funding was utilised to fund the project.

**Application has been made to DPIE for additional grant funds.

Policy and Legislation

The outcomes from the studies will be important in the terms of future amendments to the Council Local Environmental Plan and its Development Control Plan.

Link to Strategic Plan

Community Leadership and Collaboration

Objective: We are active community members

Outcome: We recognise we all have a role to play

Risk Management Issues for Council

There is a risk that the cost to carry out these projects could be more than was originally estimated. Therefore, Council may need additional funds to complete the works. However, some contingency was built into all the estimates to reduce this risk.

Internal / External Consultation

DPIE (previously the Office of Environment and Heritage) has been heavily consulted throughout the process of planning and executing these projects.

NSW Emergency Management is the responsible funding body and receives quarterly status update reports.

NSW State Emergency Services and the Bureau of Meteorology are consulted when required.

Each of these projects is managed using a project steering group comprising members from different areas of Council as per Council’s project management methodology.

Council officers in various directorates are members of the project steering committees for each project.

Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 1 December 2020. RP-2

RP-2 Project Updates - Villages

Author: Peter Ross

Director: Darren Raeck

Analysis:

This report is to provide an update on the following projects:

· Wagga Wagga Villages Floodplain Risk Management Study and Plan (VOFFS)

Recommendation

That the Committee receive and note the report.

Report

Project 18640 – Wagga Wagga Villages Floodplain Risk Management Study and Plan

At its meeting on 20 October 2020, the FRMAC agreed to meet via Zoom upon finalisation of the MOFFS and VOFFS draft documents to review and endorse for public exhibition. The completed VOFFS draft document will be circulated to the FRMAC at its meeting on 1 December 2020. Council staff invites feedback from Committee members on the VOFFS document, to be provided via the Committee Secretary.

Council staff then propose to reconvene the Committee via Zoom to clarify any matter and discuss feedback prior to recommending the VOFFS for public exhibition.

Financial Implications

The total project budgets, expenditure and commitments to date are as follows:

Project name

Total Project Budget

Expended + Committed as at

14 October 2020

Budget Remaining/

(overspend)

Wagga Wagga Villages Floodplain Risk Management Study and Plan

FM-115 - (18640)

$198,000

$141,872

$56,127

*Main City Levee Construction – excludes expenditure incurred on the Kooringal Road Cycleway, as Council received RMS grant funding and Council Reserves funding was utilised to fund the project.

**Application has been made to DPIE for additional grant funds.

Policy and Legislation

The outcomes from the studies will be important in the terms of future amendments to the Council Local Environmental Plan and its Development Control Plan.

Link to Strategic Plan

Community Leadership and Collaboration

Objective: We are active community members

Outcome: We recognise we all have a role to play

Risk Management Issues for Council

There is a risk that the cost to carry out projects could be more than was originally estimated. Therefore, Council may need additional funds to complete the works. However, some contingency was built into all the estimates to reduce this risk.

Internal / External Consultation

DPIE (previously the Office of Environment and Heritage) has been heavily consulted throughout the process of planning and executing these projects.

NSW Emergency Management is the responsible funding body and receives quarterly status update reports.

NSW State Emergency Services and the Bureau of Meteorology are consulted when required.

Each of these projects is managed using a project steering group comprising members from different areas of Council as per Council’s project management methodology.

Council officers in various directorates are members of the project steering committees for each project.

Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 1 December 2020. RP-3

RP-3 Project Updates

Author: Peter Ross

Director: Darren Raeck

Analysis:

This report is to provide an update on the following projects:

· Wagga Wagga Major Overland Flow Flood Risk Management Study and Plan (MOFFS)

· Main City and North Wagga Levee Construction

· Wagga Wagga Revised Floodplain Risk Management Study and Plan

· Wagga Wagga Villages Floodplain Risk Management Study and Plan (VOFFS)

· Flood Warning System Review

Recommendation

That the Committee receive and note the report

Report

A detailed list of projects is provided at Attachment 1, including a priority rating and current project status.

Project 1753 – Wagga Wagga Major Overland Flow Flood (MOFF) Risk Management Study and Plan

At its meeting on 20 October 2020, the FRMAC agreed to meet via Zoom upon finalisation of the MOFFS and VOFFS draft documents to review prior to endorsement for Public Exhibition. The completed MOFFS draft document will be circulated to the FRMAC at its meeting on 1 December 2020. Council staff invites feedback from Committee members on the MOFFS document, to be provided via the Committee Secretary.

It is proposed to reconvene the Committee via Zoom to clarify any matter and discuss feedback prior to recommending to Council to place the MOFFS on Public Exhibition.

Project 1793 – Main City and North Wagga Levee

As per RP-4, two components remain to allow Council to finalise the Main City Levee construction project:

· receipt of certified Work as Executed documents, and

· completion of the Levee Owner’s Manual.

The contractor has supplied the Work as Executed documents and the Levee Owner’s Manual is now complete, following consultation with the Committee.

Project 2000 – Wagga Wagga Revised Floodplain Risk Management Study and Plan

Updates to Floodplain Risk Management Studies and Plans (FRMS&P Mitigation Measures

RE1: Improve Flood Warning System

Council has been successful with a grant application to investigate options to improve the riverine flood warning system. 

The project will:

· review the current flood warning system

· assess and scope deficiencies in the current flood warning system

· make recommendations on additional infrastructure needs and any other improvements

As reported to the Committee at its meeting on 20 October 2020, Cardno (NSW ACT) Pty Ltd has been accepted as the consultant for this project and Council staff have made an application to the NSW Department of Planning, Industry and Environment (DPIE) for additional grant funds and an extension of time to deliver this project.

Project 19555 – Flood Mitigation Option Feasibility Study for North Wagga & Floodplain Residents

Voluntary House Raising & Voluntary House Purchase Scheme in Wagga Wagga.

Project 18640 – Wagga Wagga Villages Floodplain Risk Management Study and Plan

At its meeting on 20 October 2020, the FRMAC agreed to meet via Zoom upon finalisation of the MOFFS and VOFFS draft documents to review and endorse for Public Exhibition. The completed VOFFS draft document will be circulated to the FRMAC at its meeting on 1 December 2020. Council staff invites feedback from Committee members on the VOFFS document, to be provided via the Committee Secretary.

It is proposed to reconvene the Committee via Zoom to clarify any matter and discuss feedback prior to recommending to Council to place the VOFFS on Public Exhibition.

Financial Implications

The total project budgets, expenditure and commitments to date are as follows:

Project name	Total Project Budget	Expended + Committed as at 23 November 2020	Budget Remaining/ (overspend)
Wagga Wagga Major Overland Flow Flood (MOFF) Risk Management Study and Plan FM-0099 - (17826)	$228,940	$232,995	($4,055)
Main City Levee Construction – Stage 1 (17843)*	$3,278,231	$3,195,723	$82,508
Main City Levee Construction – Stage 2 (17850)	$11,562,524	$11,327,910	$234,614
Wagga Wagga Villages Floodplain Risk Management Study and Plan FM-115 - (18640)	$198,000	$141,872	$56,127
Flood Mitigation Option Feasibility Study for North Wagga & Floodplain Residents FM-0071 - (19555)	$234,000	$174,602	$59,398
Flood Warning System FM-0091 - (20549)	$33,000	$0	$33,000**

*Main City Levee Construction – excludes expenditure incurred on the Kooringal Road Cycleway, as Council received RMS grant funding and Council Reserves funding was utilised to fund the project.

**Application has been made to DPIE for additional grant funds.

Policy and Legislation

The outcomes from the various studies will be very important in the terms of future amendments to the Council Local Environmental Plan and its Development Control Plan.

Link to Strategic Plan

Community Leadership and Collaboration

Objective: We are active community members

Outcome: We recognise we all have a role to play

Risk Management Issues for Council

Internal / External Consultation

DPIE (previously the Office of Environment and Heritage) has been heavily consulted throughout the process of planning and executing these projects.

NSW Emergency Management is the responsible funding body and receives quarterly status update reports.

NSW State Emergency Services and the Bureau of Meteorology are consulted when required.

Each of these projects is managed using a project steering group comprising members from different areas of Council as per Council’s project management methodology.

Council officers in various directorates are members of the project steering committees for each project.

Attachments

1 ⇩.

2018 FRMSP Project Status

Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 1 December 2020

RP-4

RP-4 Main City Levee Completion

Author: Andrew Mason

Director: Warren Faulkner

Summary:

To finalise the Main City Levee, Council is required to receive work as executed documents and complete the Levee Owner’s Manual

Recommendation

That the Committee:

a note that Council has received and validated the Works as Executed documents from the Construction Contract.

b note that the Main City Levee Owners Manual outlining the operational response and management requirements during both dry times and during a flood has been completed.

c accept the Main City Levee construction project has been completed for the purposes of closing out the project funding requirements.

Report

Further to the report to the Committee at its October 2020 meeting, two components remain to allow Council to finalise the Main City Levee construction project:

· receipt of certified Work as Executed documents, and

· completion of the Levee Owner’s Manual

The contractor has supplied the Work as Executed documents and the Levee Owner’s Manual is now complete, following consultation with the Committee. The New South Wales Public Works Authority provided a framework for the manual to Council in 2015 and this document has been updated and more detail added specific to the Main City Levee and its operation.

This document will allow Council staff to maintain the levee to full functionality and if necessary carry out and complete maintenance and repairs across the life of the levee to ensure the integrity and reliability of the structure well into the future.

The Levee Owner’s Manual contains specific details about the structure and the operational requirements during both dry times and during a flood.

As further improvements are made to the levee system these will be incorporated into the document to ensure Council staff have a full and comprehensive understanding of the levee system, its components, its maintenance and operational requirements and its importance to the city as a key mechanism in our flood defence systems.

Financial Implications

N/A

Policy and Legislation

N/A

Link to Strategic Plan

Safe and Healthy Community

Objective: We are safe

Outcome: We are responsive to emergencies

Risk Management Issues for Council

N/A

Internal / External Consultation

Council Operations staff, Directors, representatives from SES, DPIE, and the Committee have been consulted in preparing the Manual.

Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 1 December 2020

RP-5

RP-5 Agency Update - SES

Author: Shannon Coghlan

Director: Warren Faulkner

Summary:

This report provides an update from the State Emergency Service in relation to the draft Wagga Wagga City Flood Emergency Sub Plan (Volume 1 of the Local Flood Plan) and the proposed Community Action Team Flood Container in North Wagga Wagga

Recommendation

That the Committee

a receive and note the SES update report

Report

Flood Emergency Sub Plan

The draft Flood Emergency Sub Plan for Wagga Wagga (Volume 1 of the Local Flood Plan for Wagga Wagga) has been written and was recently sent to Wagga Wagga City Council and the Local Emergency Management Committee (LEMC) for Wagga Wagga for consultation and review before being endorsed. A copy of the plan is attached for the information of members of the Committee (Attachment 1).

The NSW SES will continue to work on volumes 2 and 3 of the Local Flood Plan.

Community Action Team Flood Container

Wagga Wagga City Council and NSW SES (in consultation with Mr Laurie Blowes of the North Wagga Wagga Residents Association) have worked collaboratively to identify a site within McPherson Oval to establish a location for the Community Action Team (CAT) Flood Container in North Wagga Wagga . The container will be positioned prior to a flood event and repositioned post flooding in a recovery capacity. Works will begin shortly with information being released throughout the project, keeping the Community of North Wagga Wagga informed.

It is proposed that the CAT Flood Container will feature:

1. two cement sand bays and a cement slab provided by Council to house sand and securely house the container

2. a container provided by NSW SES, containing shovels, empty sandbags and other equipment to assist in a flood event

3. one-way traffic flow at the site in and out of the oval through a separate entrance and exit to safely expedite the process

4. post flood and transitioning into recovery the container will be restocked with cleaning equipment and repositioned in an accessible location to all members of the community

A map showing the location of the CAT at McPherson Oval is included at Attachment 2.

Financial Implications

N/A

Policy and Legislation

N/A

Link to Strategic Plan

Safe and Healthy Community

Objective: We are safe

Outcome: We are responsive to emergencies

Risk Management Issues for Council

N/A

Internal / External Consultation

The SES has consulted with Wagga Wagga City Council, members of the Local Emergency Management Committee and now the FRMAC in relation to the Flood Emergency Sub Plan.

The SES and Wagga Wagga City Council have consulted with members of the North Wagga Wagga Residents Association in relation to the Flood Container.

Attachments

1.	Wagga Wagga Flood Emergency Sub Plan (Volume 1 Local Flood Plan) - Provided under separate cover
2 ⇩.	CAT location McPherson Oval North Wagga Wagga