{"help": "https://data.gov.au/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author": "Geospatial and Data Services Manager", "author_email": null, "contact_point": "spatial.data@dwer.wa.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "55f9aa02-a55d-404a-83fd-d5736f8951a8", "isopen": false, "license_id": "custom_active_acceptance", "license_title": "custom_active_acceptance", "maintainer": "Supervising Engineer, Flood Risk Science", "maintainer_email": "flood@dwer.wa.gov.au", "metadata_created": "2025-06-23T04:22:46.502070", "metadata_modified": "2026-04-10T09:10:36.179665", "name": "fpm-floodplain-development-strategy", "notes": "The Department of Water and Environmental Regulation produces floodplain mapping of rivers and major watercourses and provides floodplain development advice to ensure that proposed floodplain development has adequate flood protection and does not impact on the existing flood regime of the area.\n\nThis advice is related to major river flooding only. Other issues, such as stormwater drainage and environmental and ecological considerations are not addressed. \n\nThis dataset comprises polygon areas showing land where development controls maybe applied to ensure an adequate level of flood protection is provided to proposed development. Information on flooding or flood levels outside of these areas is not currently available.\n\nLinks to the associated strategy diagrams and general notes on the available floodplain mapping are located under field name \u2018STRATEGY\u2019 in the attribute table.\n\nNote: To see the full scope of the floodplain mapping, 12 dataset layers are required to be loaded in the following order:\n\nFLOODPLAIN DATASET LAYERS: \nFPM Flood Level Points (m AHD)\nFPM Flood Level Contours (m AHD)\nFPM 1 in 100 (1%) AEP Floodway and Flood Fringe Line\nFPM Extent of Flooding\nFPM Levee Banks\nFPM Location of Cross Sections\nFPM 1 in 100 (1%) AEP Floodplain Development Control Area\nFPM Map Index\nFPM Bridges\nFPM Special Development Condition Area\nFPM 1 in 100 (1%) AEP Floodway and Flood Fringe Area\nFPM Floodplain Area\n\nThe dataset covers the following areas:\n\n- \n\nAvon River - Toodyay to Beverley.\n
\n- \n\nBalingup Brook - Balingup Townsite.\n
\n- \n\nBandy Creek - Esperance Townsite.\n
\n- \n\nBlackwood River \u2013 Augusta, Bridgetown, Nannup and Boyup Brook Townsites.\n
\n- \n\nBow River - Bow Bridge Townsite.\n
\n- \n\nCapel River - Capel Townsite.\n
\n- \n\nChapman River \u2013 Geraldton and Nabawa Townsites.\n
\n- \n\nCoblinine River & Dorderyemunning Creek - Wagin Townsite.\n
\n- \n\nCohn Creek - Merredin Townsite.\n
\n- \n\nCollie River - Collie Townsite.\n
\n- \n\nCorrigin Townsite.\n
\n- \n\nDenmark River - Denmark Townsite.\n
\n- \n\nExmouth Townsite.\n
\n- \n\nFerguson River - Preston River to northwest of Dardanup Townsite.\n
\n- \n\nFitzroy River - Fitzroy Crossing Townsite, Fitzroy Crossing Townsite to Willare and Noonkanbah.\n
\n- \n\nFive Mile Brook - Bunbury Townsite.\n
\n- \n\nGascoyne River - Carnarvon Townsite, the Lower Gascoyne and Gascoyne Junction.\n
\n- \n\nGingin Brook - Gingin Townsite.\n
\n- \n\nGordon River - Tambellup Townsite.\n
\n- \n\nGreenough River \u2013 Indian Ocean to Walkaway.\n
\n- \n\nGribble Creek - Kalgoorlie Townsite.\n
\n- \n\nHarding River - Roebourne Townsite.\n
\n- \n\nIrwin River - Dongara Townsite.\n
\n- \n\nKarratha Townsite.\n
\n- \n\nLake Grace Townsite.\n
\n- \n\nLeschenault Estuary / Collie River/ Preston River/ Brunswick River/ Eedle's Gully (Greater Bunbury Region) - Collie River from Leschenault Estuary to just east of South Western Highway, Preston River from Leschenault Estuary to Donnybrook-Boyup Brook Rd, Brunswick River from Collie River to just east of South Western Highway, Eedles Gully from Preston River to Bunbury Aerodrome and Leschenault Estuary from Bunbury to Binningup.\n
\n- \n\nMargaret River \u2013 Margaret River Townsite.\n
\n- \n\nMoore River - Moora Townsite and Bennies Road area.\n
\n- \n\nMurchison River - Kalbarri Townsite and North West Coastal Hwy to Jack Hills.\n
\n- \n\nNullagine River \u2013 Nullagine Townsite.\n
\n- \n\nPort Hedland Townsite.\n
\n- \n\nSerpentine River, Murray River and the Peel Inlet / Harvey Estuary - Peel Inlet / Harvey Estuary to Pinjarra and south to the Darling Scarp (Murray River) and Peel Inlet / Harvey Estuary to Wellard and east to South Western Highway (Serpentine River).\n
\n- \n\nSwan River, Canning River and Tributaries: Fremantle to Walyunga National Park (Swan River) and Canning Bridge to Brookton Highway (Canning River). Tributaries include Bennett Brook, Blackadder Creek, Ellen Brook, Helena River, Jane Brook, St Leonards Creek, Susannah Brook (Swan River) and Southern River/ Wungong Brook (Canning River).\n
\n- \n\nToby Inlet \u2013 Quindalup Townsite.\n
\n- \n\nTurkey Creek - Warmun Aboriginal Community.\n
\n- \n\nVasse-Wonnerup Estuaries, Broadwater and New River - Busselton Townsite.\n
\n- \n\nWillyung Creek \u2013 Albany.\n
\n- \n\nYakamia Creek \u2013 Albany Townsite.\n
\n
\n\nGlossary:\n\n- \n\nAnnual exceedance probability (AEP) - the likelihood of occurrence of a flood of a given size or larger in any one year; usually expressed as a percentage.\n
\n- \n\n1 in 100 AEP flood - this means that there is a 1 in 100 (or 1%) chance of a flow of this size or larger occurring in any one year. This flood has a 50% chance of being experienced at least once in a person's lifetime. The 1 in 100 AEP flood has been generally adopted in Australia and overseas as the basis for floodplain management planning.\n
\n- \n\nFloodplain - the portion of a river valley next to the river channel which is covered with water when the river overflows its banks during major river flows. The term also applies to land adjacent to estuaries which is subject to flooding.\n
\n- \n\nAustralian Height Datum (AHD) - is a geodetic datum for altitude measurement in Australia. It was adopted in 1971 by the National Mapping Council as the datum to which all vertical control for mapping is to be referred. The datum is based on the mean sea level (1966-1968) being assigned the value 0.000m on the Australian Height Datum (AHD) at 30 tide gauges around the coast of the Australian continent.\n
\n
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