Abstract

In view of the increasing catchment development and the need to accurately define the flood problem, Lake Macquarie City Council engaged Webb, McKeown & Associates, to undertake a Flood Study. The primary objectives of this Flood Study are: • to define the flood behaviour of the North Creek catchment by producing information on flood levels, velocities and flows for a range of design flood events under existing catchment and floodplain conditions, • to assess the hydraulic categories and undertake provisional flood hazard mapping, • to assess the extent of the flood problem by undertaking a damages assessment, • to formulate suitable hydrologic/hydraulic models that can be used in a subsequent Floodplain Risk Management Study to assess various floodplain management measures, including the effects of further development. This report details the results and findings of the Flood Study investigations. The key elements include: • a summary of available data, • reasons for the choice of hydrologic and hydraulic models, • calibration of these models, • establishment of design flood behaviour, • flood damages assessment. The Flood Study does not consider flooding from local drainage which may result from inadequate urban drainage provisions.

Presentation form

Edition

15/09/2017

Dataset language

English

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/ad468018-ac91-428f-ab48-dde8106270b1

Purpose

Land and Resource Management

Status

On going

Spatial representation

Spatial reference system

Originating controlled vocabulary

Dataset reference date

Responsible party

Metadata point of contact

Metadata date

2024-03-25T07:36:06.571335

Metadata language