Floodplain Management Plan for the Lower Namoi Valley Floodplain Order 2020 (2020-539) (NSW)

New South Wales

Floodplain Management Plan for the Lower Namoi Valley Floodplain Order 2020

under the

Water Management Act 2000

|, Melinda Pavey, the Minister for Water, Property and Housing, in pursuance of sections 45 (5) and 50 of the Water Management Act 2000, make this Order.

Dated this 27th day of July 2020.

MELINDA PAVEY, MP Minister for Water, Property and Housing

Explanatory note This Order repeals the Narrabri - Wee Waa Floodplain Management Plan 2005 and makes the Floodplain Management Plan for the Lower Namoi Valley Floodplain 2020.

This Order is made under sections 45 (5) and 50 of the Water Management Act 2000. The concurrence of the Minister for Energy and Environment was obtained prior to the making of the Floodplain

Management Plan for the Lower Namoi Valley Floodplain 2020.

Published LW 11 September 2020 (2020 No 539)

Floodplain Management Plan for the Lower Namoi Valley Floodplain 2020

Floodplain Management Plan for the Lower Namoi Valley Floodplain Order 2020 under the

Water Management Act 2000

1 Name of Order

This Order is the Floodplain Management Plan for the Lower Namoi Valley Floodplain Order 2020.

2 Commencement This Order commences on the day it is published on the NSW legislation website. 3 Repeal

The Narrabri — Wee Waa Floodplain Management Plan adopted under section 166A of the Water Act 1912 (Gazette No 164 of 23.12.2005) is repealed on the commencement of this Order.

4 Making of Minister's Plan

The Floodplain Management Plan for the Lower Namoi Valley Floodplain 2020 set out at Schedule 1 is made on the commencement of this Order.

Page 2 Published LW 11 September 2020 (2020 No 539)

Floodplain Management Plan for the Lower Namoi Valley Floodplain 2020

Schedule 1

Contents Part 1 Tntroduction ......c.c cece ee cseececececsesesscscecsesscececsesesesscecsesesesscseseseeesecsesesesesecseasesecseeseasens 5 Part 2 Vision, objectives, strategies and performance indicators... eeeeeeeeeeeees 10 Part 3 Flooding regimes .........ccecce ec csecece ee cscsesesececsesesesseesseseeesscsesesesesessesesesecessesseseesesssasenenes 14 Part 4 Floodway network .......cccccccsescscecsccsesscecscsesesececscseeessnscsesesscecsesesssesesseseseseeessesseeeeeees 17 Part 5 Benefits of flooding... cece cece cececsesenecececsessescecsesesssscecsesesssessesesseeseeseseeeeceees 19 Division | Goerneral oo... eseceseeececsesesececscsesessescseseseessseesesesenecseseeeeneees 19 Division 2 Ecological assets and values dependent on flooding... 19 Division 3 Cultural assets and values dependent on flooding... 20 Part 6 Existing flood Works .0......ccccce ce ccsececececsesecececscsessceeecsesssececsesessseseesesesseessesesseneseeees 23 Part 7 Risks from flooding... cece eseescececsesesesececsesesscecsesessescecseseseseeessesseseeseseseeneeees 28 Part 8 Rules for granting or amending flood work approvals.........cccccsseeeseseeeeeeeeseteeeeees 31 Division | Goerneral oo... eseceseeececsesesececscsesessescseseseessseesesesenecseseeeeneees 31 Division 2 Granting or amending flood work approvals in the Lower Namoi Management Zone AD ..0......ccecccecesesesseseeseeeeseeecseseeeseesesseeeeseeeeees 31 Division 3 Granting or amending flood work approvals in the Lower Namoi Management Zone AID... eeeeeeseeseeeeseeseseesceeeseeseseeacseeseeeeseeaeees 41 Division 4 Granting or amending flood work approvals in the Lower Namoi Management Zone B ..........ccccecccesceseseseeseeeeeeeeeecseseeseseesssseeeeseeeeees 43 Division 5 Granting or amending flood work approvals in the Lower Namoi Management Zone C ........cceccsccesccescsseseseeseeeceeeeeecsesecseseesesseeeeseeeeees 47 Division 6 Granting or amending flood work approvals in the Lower Namoi Management Zone CU.........ccceccceceseeseeseeeeeeeeeeecsesecseseesesseeeeseeeeees 50 Division 7 Granting or amending flood work approvals in the Lower Namoi Management Zone D .........cceceecsceesseeseeseeeceeeeesecseeeeseseesesseeeeeeeeeees 50 Part 9 Mandatory Conditions... cece eseessececseseeecseecseesesscsesesecssecsesesssessssesseeseeseseeeeneees 57 Part 10 Amendment of this Plan... cece cceeeeceeecsesesececscsesesecesseseseseeessessseseeseseseeneees 59 Dictionary eececcccececescsecsesessescscsesesececscsesesesecseseseseeecsesssesecsesesssssesseseseseeessesseeseees 62 Page 3