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Amendment C082 - Update to Land Subject to Flood Inundation Overlay and introduction of Floodway Overlay

This amendment to the Mount Alexander Planning Scheme proposes to update the Land Subject to Flood Inundation Overlay (LSIO) and introduce a Floodway Overlay (FO) to manage the risk of flooding in the townships areas of Castlemaine, Campbells Creek and Chewton.

About the amendment

The Castlemaine, Campbells Creek and Chewton Flood Management Plan is a joint project between the North Central Catchment Management Authority (North Central CMA) and Mount Alexander Shire Council (Council).

The plan modelled the impact of flooding from Barkers Creek, Forest Creek and Campbells Creek in township areas of Castlemaine, Campbells Creek and Chewton which have a long history of flooding.

A key recommendation of the plan is an amendment to the Mount Alexander Planning Scheme to incorporate the new flood mapping and overlays from the comprehensive flood study.

Information relating to flood prone areas has been limited in the past. Land use planning is recognised as being the best means of avoiding future flooding problems.

The project is now at the stage of including the new flood information in the Mount Alexander Planning Scheme via Amendment C082.

What does the amendment propose?

Two new overlays are proposed:

Floodway Overlay (FO) Schedule 1

• Identifies waterways, major floodpaths, drainage depressions and high hazard areas which have the greatest risk and frequency of being affected by flooding.
• Ensures that any development maintains the free passage and temporary storage of floodwater and minimises flood damage.
• Permit required for buildings and works and subdivision.
• Exemptions apply for minor buildings and works for example upper storey extensions if there is no increase to the ground floor footprint, extensions less than 20m2, a replacement dwelling, non-habitable buildings with floor areas of less than 10m2, agricultural buildings with permanent openings, sheds and rainwater tanks.

Land Subject to Inundation Overlay (LSIO) Schedule 1
• Identifies land in a flood storage or flood fringe area.
• Ensures development maintains the free passage and temporary storage of floodwaters, minimises flood damage, and will not cause any significant rise in flood level or flow velocity.
• Permit required for buildings and works and subdivision.
• Exemptions apply for minor buildings and works for example upper storey extensions if there is no increase to the ground floor footprint, extensions less than 40m2, replacement dwellings and fences, agricultural buildings with permanent openings, sheds and rainwater tanks.

Minor change to existing LSIO

The LSIO already exists on some land in the Shire, both within and outside the study area identified in the flood management plan.

LSIO Schedule 1 will be applied to land in the flood management plan area only.

Existing LSIO areas outside the flood management plan area will be renumbered to LSIO Schedule 2. Overlay maps of these areas will remain unchanged.

How do I check if my property is affected?

View the interactive map and search for your property address.

This tool is best viewed on desktop, laptop or tablet.

How will the LSIO and FO mapping change in our shire?

The amendment changes the existing LSIO and introduces the FO to land within the flood management plan area only. It does not affect all land in our Shire. The changes to the mapping are proposed to occur in the following ways:

• Some land will have an LSIO now. The new mapping might change the extent of the LSIO boundary.
• Some land will have the new FO applied.
• Some land will have the new LSIO applied.
• Some land will be removed from the LSIO.

More information

The amendment documentation is available for public inspection, free of charge, during office hours at the following places:

• Mount Alexander Shire Council, Civic Centre, 27 Lyttleton Street, Castlemaine
Planning Scheme Amendments Online

For more details on the Planning Scheme and Amendment C082, please contact the Strategic Planning team on (03) 5471 1700 or email info@mountalexander.vic.gov.au.

For further technical information or property specific queries including flood levels, flooding impacts and required floor levels for new buildings or extensions to existing buildings, please contact North Central Catchment Management Authority on (03) 5440 1896 or email floodplain@nccma.vic.gov.au.

Reference documents

Amendment C082 Castlemaine Flood Study Brochure (900KB, PDF)
Amendment C082 Frequently Asked Questions (250KB, PDF)
Amendment C082 Submission Form (320KB, PDF)

How to make a submission

Any person who is affected by the amendment may make a written submission by 5.00pm, Monday 8 January 2018.

They can be submitted by:

Post: Amendment C082, Strategic Planning, Mount Alexander Shire Council, PO Box 185, Castlemaine VIC 3451.

Email: info@mountalexander.vic.gov.au and include Amendment C082 in the subject field.

In person: Deliver to Mount Alexander Shire Council, Civic Centre, Corner Lyttleton and Lloyd Streets, Castlemaine

What happens next?

Council will consider the submissions, potentially seek to resolve some or all of the submissions and then determine whether to request a Planning Panel or abandon the amendment.

If a Planning Panel is required, the preset Planning Panel dates are:

• Directions Hearing: in the week commencing Monday 16 April 2018.
• Panel Hearing: in the week commencing Monday 28 May 2018.

If no submissions are made or if all submissions are resolved then Council will determine whether to adopt the amendment and send it to the Minister for Planning for approval.

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