AGENDA AND BUSINESS PAPER

 

 

Floodplain Risk Management Advisory Committee

 

 

 

To be held on
Tuesday

5 February 2019

AT 8.30am

 

 

 

Cnr Baylis and Morrow Streets,
Wagga Wagga NSW 2650
PO Box 20, Wagga Wagga

 

Phone: 1300 292 442
Fax: 02 6926 9199
Website:
www.wagga.nsw.gov.au

 


Reports submitted to the Floodplain Risk Management Advisory Committee to be held on Tuesday 5 February 2019.

Floodplain Risk Management Advisory Committee AGENDA AND BUSINESS PAPER

Tuesday 5 February 2019

ORDER OF BUSINESS:

CLAUSE               PRECIS                                                                                            PAGE

ACKNOWLEDGEMENT OF COUNTRY                                                                              2

APOLOGIES                                                                                                                      2

Confirmation of Minutes                                                                                          2

DECLARATIONS OF INTEREST                                                                                        2

Reports from Staff

RP-1                     Project Updates                                                                             3

QUESTIONS WITH NOTICE 


ACKNOWLEDGEMENT OF COUNTRY

 

 

APOLOGIES

 

 

Confirmation of Minutes

CM-1              Meeting Minutes - 11 December 2018       

 

Recommendation

That the Minutes of the proceedings of the Floodplain Risk Management Advisory Committee Meeting held on 11 December 2018 be confirmed as a true and accurate record.

 

 

Attachments  

1.

Meeting Minutes - 11 December 2018

9

 

  

 

 

DECLARATIONS OF INTEREST


Report submitted to the Floodplain Risk Management Advisory Committee on Tuesday 5 February 2019.                 RP-1

 

Reports from Staff

RP-1               Project Updates

Director:       Caroline Angel

         

 

Analysis:

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

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

·     Main City and North Wagga Levee Construction – Stage 1

·     Wagga Wagga Revised Floodplain Risk Management Study and Plan

·     Wagga Wagga Villages Floodplain Risk Management Study and Plan

 

 

 

Recommendation

That the Committee:

a       receive and note the report

b       endorse the inclusion of the additional recommendation for the Wagga Wagga           Floodplain Risk Management Study and Plan, made at the 26 March 2018           Council meeting, as detailed in the body of this report         

 

Report

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

 

Report 1 – Data Collection & Model Review Report and Report 2 – Flood Damages Assessment Report have been provided to Council staff and Floodplain Committee members, for review and comment. WMAwater will be attending the Floodplain Risk Management Advisory Committee (FRMAC) meeting on 5 February 2019 to discuss the contents with the Committee.

 

Project 1793 – Main City and North Wagga Levee

 

Wagga Wagga’s Main City Levee project reaches another milestone this month as Stage 1 nears completion and preparations for the Stage 2 upgrade mobilisation commences.

The upgrade of the remaining 6km of levee bank between Gobbagombalin Bridge and Hammond Avenue is the second part of the lengthy and complex project. The aim is to provide 1 in 100-year flood protection to the city for the first time.

Stage 2 work involves the extension and reinforcement of existing concrete retaining walls and installation of capped sheet piles. Preparation work is underway in the lead up to construction work starting on the first section between Wiradjuri Bridge and Johnston Street.

The Wiradjuri Walking Track will be completely closed for several months in this section from 7 January 2019.

Residents and business operators affected by the works, or anyone interested in the Stage 2 levee project, are invited to attend community information sessions to be held on 11 and 12 December.

Council staff are working with the contractors to minimise disruptions as much as possible and thank residents and businesses for their cooperation throughout these works

Riverina-based firm Murray Constructions was endorsed as the successful tenderer for the multi-million dollar project at the 29 October 2018 Council meeting.

The Stage 2 upgrade is scheduled to take approximately 14 months, weather dependant.

 

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

 

Council at its Ordinary Meeting on 26 March 2018 adopted the Wagga Wagga Revised Floodplain Risk Management Study and Plan (FRMS&P) that included a list of flood mitigation measures that were recommended by the FRMAC.

 

In addition, Council also resolved to undertake a feasibility study of the combined Options PR1 & L4B as per the following:

 

g       make application under the NSW Government’s Floodplain Management Program to undertake a North Wagga Flood Mitigation Options Feasibility Study

h       in relation to (g) above and in addition to the report recommendation, undertake feasibility studies of flood mitigation strategies including Option L4b and PR1 combined

 

Consequently, the Wagga Wagga Revised Floodplain Risk Management Study and Plan will need to be updated with the inclusion of an addendum to accommodate this further recommendation.

 

Updates to FRMS&P Mitigation Measures

 

Options PR1 & L4B

PR1: Undertake a feasibility study to 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: Undertake a feasibility study to 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.

 

Council has received grant funding from OEH to undertake the feasibility study of these two options.

 

RE1: Improve Flood Warning System

Council has commenced discussions with NSW SES in view of exploring funding and collaboration opportunities.

 

R2: Improved Access to Gumly Gumly

Council has commenced discussion with RMS in regard to the possibility of RMS undertaking this work.

 

PL1 – PL10: Floodplain Risk Management Planning Measures

 

PL1: Move Flood Planning Area mapping into the Wagga Wagga DCP, whilst retaining the definition of the Flood Planning Area and Flood Planning Level in the LEP

PL2: Reformat DCP to Matrix style document

PL3: Add clause to LEP to control critical facilities and vulnerable land uses between the FPA and PMF extent

PL4: Requirement of Site Specific Flood Emergency Plans

PL5: Flood Risk Info on s149 Planning Certificates

PL6: Controls to set Minimum Flood Levels

PL7: Controls to set Minimum Flood Proofing Levels

PL8: Controls to ensure appropriate building design and materials

PL9: Controls to Manage Offsite Impacts: Flood Impact Assessment

PL10: Appropriate Dwelling Design

 

Council has engaged City Plan to review and amend the flood controls in Council’s Development Control Plan (DCP).

 

 

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

 

Council has commenced the initial community consultation period. The objective of this community consultation period is to gather as much information of flooding to better understand how flooding occurs in the Villages and what measures may improve the current flood situation.

 

An information pack that contains a letter, newsletter and a questionnaire has been mailed out to the residents within the study area. An online questionnaire is also available and submissions are open until 1 March 2019.

 

 

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

 

Council staff, in conjunction with OEH, are working on the development of the scope and brief for this project. Given the nature of the options to be investigated, that being the following, finer detail need to be considered to enable the alignment of the options.

 

Undertake a feasibility study to 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.

 

A list of key points will be provided at the 5 February 2019 meeting for discussion with Committee.

 

Financial Implications

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

Project name

Total Project Budget

Expended + Committed as at

7 December 2018

Budget Remaining

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

FM-0099 - (17826)

$220,001

$213,933

$6,068

Main City and North Wagga Levee Construction – Stage 1

(17843)

$3,622,026

$3,512,109

$109,917

Wagga Wagga Villages Floodplain Risk Management Study and Plan

FM-115 - (18640)

$198,000

$139,599

$58,401

 

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

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


 

Internal / External Consultation

The Office of Environment and Heritage have 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 Bureau of Meteorology are consulted when required.

 

Each of these projects is managed using a project steering group made up of members from different areas of Council as per Councils project management methodology.

 

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

 

 

  

 

   


QUESTIONS WITH NOTICE 

 


Reports submitted to the Floodplain Risk Management Advisory Committee to be held on Tuesday 5 February 2019.