cc30f516-a674-402f-b8ee-b3a2efd6c229 urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2026-01-21T22:40:54 creation ISO 19115 2016 Flat Rock Creek Flood Study cc30f516-a674-402f-b8ee-b3a2efd6c229 The Flood Study had three main components: <ol> <li><strong>Review</strong> of available hydrologic and hydraulic data and previous investigations. As mentioned, a Brief was prepared for a cross sectional survey of the Southern Tributary to fill in gaps in the survey data. Historic flood marks identified by the Community Newsletter were also levelled during the creek survey. The Bureau of Meteorology and Sydney Water supplied rainfall data for the historic storms identified in previous investigations on flooding on Flat Rock Creek and by the Community Newsletter.</li> <li><strong>The hydrologic component</strong>, which included refining and testing of the hydrologic model of the catchment, estimation of design storm rainfalls and their application to the model to assess flows.</li> <li><strong>The hydraulic component</strong>, which comprised the testing of the hydraulic model of the open channel section of Flat Rock Creek and the preparation of the Southern Tributary model and the definition of the water surface profiles, flows and velocities for the design floods.</li> </ol> New South Wales (NSW81093) 147.0179 147.0179 -32.1618 -32.1618 hydraulic model hydrologic model Flat Rock Creek Flood Study documentDigital HTML