{"help": "https://data.nsw.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"author": "Willoughby City Council", "author_email": null, "contact_info": "False", "contact_point": "email@willoughby.nsw.gov.au", "creator_user_id": "8d2ac61a-d63a-4456-a00d-b35fee4c4025", "data_state": "inactive", "id": "4432c1e9-2b69-4043-96cd-eaf1e880ee6f", "isopen": true, "jurisdiction": "New South Wales Government", "license_id": "cc-by", "license_title": "Creative Commons Attribution", "license_url": "http://www.opendefinition.org/licenses/cc-by", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-12-17T02:21:24.067150", "metadata_modified": "2026-01-14T04:57:57.538956", "name": "fdp-swaines-creek-flood-study-report", "notes": "__Chapter 2__ contains background information including a brief description of the study catchment\r\nand its drainage system, details of previous flooding investigations, a summary of community\r\nconsultation undertaken as part of this present study (refer Appendix A for details), and a brief\r\nhistory of flooding within the catchment.\r\n\r\n__Chapter 3__ deals with the hydrology of the Lane Cove River and Swaines Creek catchments, and\r\ndescribes the development of the RORB and DRAINS hydrologic models which were used to\r\ngenerate discharge hydrographs for input to the hydraulic model.\r\n\r\n__Chapter 4__ deals with the development of the TUFLOW hydraulic model which was used to\r\nanalyse flood behaviour in the study area.\r\n\r\n__Chapter 5__ deals with the derivation of design discharge hydrographs, which involved the\r\ndetermination of design storm rainfall depths over the catchments for a range of storm durations\r\nand conversion of the rainfalls to discharge hydrographs.\r\n\r\n__Chapter 6__ details the results of the hydraulic modelling of the design floods. Results are\r\npresented as water surface profiles and plans showing indicative extents of inundation for a\r\nrange of design flood events up to and including the PMF. A provisional assessment of flood\r\nhazard and hydraulic categorisation is also presented. (The assessment of flood hazard\r\naccording to velocity and depth of floodwaters is necessarily \u201cprovisional\u201d, pending a more\r\ndetailed assessment which includes other flood related criteria, to be undertaken during the future\r\nFRMS.) The results of various sensitivity studies undertaken using the TUFLOW model are also\r\npresented, including the effects of changes in hydraulic roughness, partial blockage of the piped\r\nstormwater system, and potential increases in rainfall intensities and sea levels due to future\r\nclimate change. This chapter also deals with the selection of Interim FPL\u2019s for the study area.\r\n\r\n__Chapter 7__ contains a list of references.\r\n\r\n__Chapter 8__ contains a list of flood-related terminology that is relevant to the scope of the study.\r\n\r\n__Appendix A__ provides details of the collection of historic flood data and describes the testing of\r\nthe hydrologic and hydraulic models.\r\nFigures referred to in both the main report and the appendices are bound in a separate volume of\r\nthe report (refer __Volume 2__).", "num_resources": 2, "num_tags": 4, "organization": {"id": "0df8cd36-fd4b-4c42-bc88-0a10e66a1785", "name": "willoughby-city-council", "title": "Willoughby City Council", "type": "organization", "description": "The City of Willoughby on Sydney's  north shore is 8.5km from the CBD and covers an area of 23km/sq and includes the suburbs of Artarmon, Castlecrag, Castle Cove, Chatswood, Middle Cove, Naremburn, Northbridge and Willoughby, as well as parts of Gore Hill, Lane Cove, St Leonards and Roseville. Approximately 70 000 people live within the Willoughby City area.\r\n\r\nWeb: http://www.willoughby.nsw.gov.au\r\n\r\nThe drainage system in the Willoughby Council area is made up of a number of catchments on the eastern and western sides of the Pacific Highway, which forms the drainage divide. Catchments on the west side of the Pacific Highway include Blue Gum Creek and Swaines Creek. On the east side of the Pacific Highway catchments include Scotts Creek, Sugarloaf Creek, Sailors Bay Creek and Flat Rock Creek.\r\n\r\nFlood Studies have been completed for the following catchments:\r\n\r\n* Flat Rock Creek (Mainstream flooding only)\r\n* Sailors Bay Creek\r\n* Scott\u2019s Creek (Mainstream flooding only)\r\n* Sugarloaf Creek\r\n* Swaines Creek\r\n\r\nhttp://www.willoughby.nsw.gov.au/Environment---Sustainability/nature/water/Floodplain-Management/\r\n\r\n\r\n", "image_url": "2021-03-23-015333.495887willoughby.jpg", "created": "2021-02-19T15:04:15.258705", "is_organization": true, "approval_status": "approved", "state": "active"}, "owner_org": "0df8cd36-fd4b-4c42-bc88-0a10e66a1785", "private": false, "spatial": "{\r\n \"type\": \"Polygon\",\r\n \"coordinates\": [\r\n  [\r\n   [\r\n    151.1571979522705,\r\n    -33.79261551232023\r\n   ],\r\n   [\r\n    151.15745544433594,\r\n    -33.796110616967226\r\n   ],\r\n   [\r\n    151.15805625915527,\r\n    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