To be held on
5 February 2019
Cnr Baylis and Morrow Streets,
Wagga Wagga NSW 2650
PO Box 20, Wagga Wagga
Phone: 1300 292 442
Fax: 02 6926 9199
Floodplain Risk Management Advisory Committee AGENDA AND BUSINESS PAPER
Tuesday 5 February 2019
ORDER OF BUSINESS:
CLAUSE PRECIS PAGE
ACKNOWLEDGEMENT OF COUNTRY 2
Confirmation of Minutes 2
DECLARATIONS OF INTEREST 2
Reports from Staff
RP-1 Project Updates 3
QUESTIONS WITH NOTICE
ACKNOWLEDGEMENT OF COUNTRY
Confirmation of Minutes
CM-1 Meeting Minutes - 11 December 2018
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.
Meeting Minutes - 11 December 2018
DECLARATIONS OF INTEREST
RP-1 Project Updates
Director: Caroline Angel
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
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
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.
The total project budgets, expenditure and commitments to date are as follows:
Total Project Budget
Expended + Committed as at
7 December 2018
Wagga Wagga Major Overland Flow Flood (MOFF) Risk Management Study and Plan
FM-0099 - (17826)
Main City and North Wagga Levee Construction – Stage 1
Wagga Wagga Villages Floodplain Risk Management Study and Plan
FM-115 - (18640)
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.
Community Leadership and Collaboration
Objective: We are active community members
Outcome: We recognise we all have a role to play
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
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