In late 2013, the Department of Planning and former Pittwater and Warringah Councils tendered a study to investigate flood mitigation measures within the Narrabeen Lagoon catchment area. The time frame for such a study was to be two years. Will this study be relied upon in the precinct planning process and will it impact upon the current timing of the rezoning of Ingleside?
The flood and water management investigations for the Ingleside Precinct will utilise the latest available flooding information.
The Narrabeen Lagoon Flood Study (adopted November 2013) is being used in assessing the flood risk to Mullet Creek.
The Study commissioned in late 2013/early 2014 is the Floodplain Risk Management Study and Plan for the Narrabeen Lagoon catchment area.
The integrated water cycle management strategy, including flooding analysis for Ingleside needs to be consistent with Council’s overarching flood studies and floodplain management plans.
If Ingleside is developed, will portions of land need to be acquired for water retention purposes? Can the Council quarry and/or golf courses be used for water retention?
The detailed water cycle management strategy and flooding assessment for Ingleside will define the nature and location of drainage infrastructure that, in turn, will be the subject of future land acquisition (for public purpose - drainage infrastructure).
What will the anticipated main and ancillary creek line buffers be?
A biodiversity and riparian corridor (creek line) assessment, is one of the technical studies that will inform the development of the release area, and a key finding of that study will be the location, extent and future character of the creek line corridor. EcoLogical Australia, in accordance with NSW Government guidelines, has recommended to the project partners that the Vegetated Riparian Zones (RPZ’s) of 10m, 20m and 30m for first-order, second-order and third-order watercourses respectively on each side of the watercourse. The RPZ consists of both of the areas formerly known as the core riparian zone and the vegetated buffer.
Past investigations on Ingleside included a number of technical studies. Are these studies being used for the precinct planning process?
The previous studies were part of a desktop review, gap analysis to critically evaluate their relevance in the current planning investigations. Existing information and data is being utilised, where appropriate.
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