{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author": "Port Stephens Council", "author_email": null, "contact_point": "FloodCertificates@portstephens.nsw.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "a914a8f8-30b6-422b-96f9-ced92e201920", "isopen": false, "license_id": "cc-by", "license_title": "Creative Commons Attribution 3.0 Australia", "license_url": "http://creativecommons.org/licenses/by/3.0/au/", "maintainer": null, "maintainer_email": null, "metadata_created": "2026-01-21T20:42:03.823713", "metadata_modified": "2026-01-21T20:42:10.392517", "name": "nsw-fdp-medowie-drainage-and-flood-study-report", "notes": "The flood study carried out for Medowie identifies flood liable land for a range of floods and finds\nthat many properties and approximately 20 residences, are likely to be flood liable during the 1%\nAEP event. Recommendations going forward are as follows:\n\u2022 In some locations existing drains are incapable of carrying 20 \u2013 10% AEP (and in some\ncases even lower) flows. An example of this is the open drain which passes through\nBallet Close from north to south. Enhancing the capacity of these trunk drainage\nsystems should be examined as this may achieve a degree of flood relief for those\nproperties which are exposed to flooding on a regular basis. Such an examination should\nhowever ensure that flooding issues are not simply transferred downstream;\n\u2022 Houses in County Close which remain subject to inundation should be closely monitored.\nIt is likely that local flows cause inundation of these low lying properties and minor works\nby Council may alleviate this circumstance for impacted residents;\n\u2022 More generally there a number of locations where, due to the limited range of design\nflood behaviour (flood depths do not change markedly for variable AEP), minor works\nsuch as bunding could provide good levels of flood protection for individual properties. A\ngood example of this is on Kirrang Drive (western side) where houses are currently\nimpacted by flows from the swale at the front of their properties;\n\u2022 Generally Council needs to recognise the main overland flow paths identified in the study\nand move to restrict development in these \u201ccorridors\u201d in the future;\n\u2022 In order to assess the issue in the CDIA with regard to upstream development potentially\nincreasing flooding downstream of Ferodale Road, satisfactorily answer questions in the\nCDIA in regard to the impact of proposed development on the wet sequences which\noften deny property owners of access/enjoyment of their land, Council need to have a\nwater balance type of exercise carried out. This will address the kinds of events which\nimpact on inundation within the CDIA but which do not have any relevance to the\ndefinition of peak flood levels. It is noteworthy that during the Management Study\nprocess it will also be necessary to ensure mitigation works designed to alleviate flooding\nliability do not negatively impact on long term inundation for water sequences in the\nCDIA. The Management Study should consider a range of solutions but ensure that\nwater quality is either maintained or improved;\n\u2022 Council should take care not to raise those sections of roads currently inundated as\ndoing so will directly impact on peak flood levels. This is due to the fact that much of the\n1% AEP flow moves over roads rather than through corresponding culverts; and\n\u2022 During the Management Study it is recommended that runs are carried out which\nexamine the impact of removing the pinch which currently exacerbates the duration,\nextent and magnitude of inundation further upstream in the CDIA; and\n\u2022 Pinch plus pump capacity enhancement runs be carried out. Note unless pinch works\nare modelled, nothing will be achieved by looking at pumping rate enhancement alone.", "num_resources": 2, "num_tags": 5, "organization": {"id": "fe8fe8ff-9dfe-4f2d-8627-c4cef675bd7b", "name": "port-stephens-council-datansw", "title": "Port Stephens Council", "type": "organization", "description": "Port Stephens lies in the Hunter Region and is situated about 160 kilometres north-east of Sydney. It contains a large natural harbour of approximately 134 square kilometres within the Port Stephens-Great Lakes Marine Park; its northern shoreline forms the boundary between the Port Stephens and Mid-Coast local government areas.\r\n\r\nThe estimated residential population Port Stephens Community Profile was 64, 807 in 2011.\r\n\r\nhttp://www.portstephens.nsw.gov.au/\r\n\r\nPortions of the Port Stephens Local Government Area (LGA) is affected by flooding. This is due to the presence of major river systems in the western regions of Port Stephens and the low lying topography as well as interactions with the coast and estuaries in the east.\r\n\r\nFlooding in the LGA is caused by:\r\n\r\n* river or creek banks being overtopped;\r\n* estuary levels rise and cover foreshore areas; and\r\n* stormwater drainage that is unable to cope causing overland flows (down streets or across other urban areas).\r\n\r\nCouncil manages land affected by flooding by:\r\n\r\n* undertaking studies that identify flood risk and flood levels;\r\n* undertaking floodplain risk management studies and plans that provide provisions for the management of flood prone land; and\r\n* assessing the compatibility of new development (and major renovations) with flood risk thereby encouraging development that is appropriate to the flood risk of the area.\r\n\r\nCouncil are currently undertaking the Williamtown Salt Ash Floodplain Management Study and Plan and the Anna Bay and Tilligerry Creek Flood Study.\r\n\r\nCouncil is also involved in the Paterson River Flood Study which is being administered and managed by Maitland City Council. Refer to Maitland City Council's website for further information.\r\n\r\nData from other neighbouring Councils Reports such as the Karuah River Flood Study 2010 and the Hunter River (Branxton to Green Rocks) Flood Study 2010 has been utilised by Council in the development of Flood Hazard Maps. These Reports may be available upon request from the neighbouring Councils websites.\r\n", "image_url": "", "created": "2025-06-24T04:46:42.886713", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://data.nsw.gov.au/data/", "href": "https://data.nsw.gov.au/data/dataset/nsw-fdp-medowie-drainage-and-flood-study-report", "title": "DataNSW"}, "original_name": "nsw-fdp-medowie-drainage-and-flood-study-report", "owner_org": "fe8fe8ff-9dfe-4f2d-8627-c4cef675bd7b", "private": false, "promotion_level": "0", "remote_last_updated": "2026-01-15 06:24:05.597930", "spatial": "{\"type\": \"Point\",\"coordinates\": [147.0179,-32.1618]}", "spatial_coverage": "New South Wales (NSW81093)", "state": "active", "temporal_coverage_from": "2025-12-17 01:02:42.995719", "temporal_coverage_to": "2012-05-01 00:00:00", "title": "Medowie Drainage and Flood Study", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "harvest_object_id", "value": "1bfe6012-e7e5-487b-a8e3-ae871843c55e"}, {"key": "harvest_source_id", "value": "9ebac586-8e51-4904-9f6c-d9b79726659a"}, {"key": "harvest_source_title", "value": "DataNSW"}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2026-01-15T06:24:05.624197", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "format": "HTML", "hash": "", "id": "59f62e20-c814-4c42-88b0-45d75071abb4", "last_modified": null, "metadata_modified": "2026-01-21T20:42:03.817933", "mimetype": null, "mimetype_inner": null, "name": "Medowie Drainage and Flood Study", "package_id": "a914a8f8-30b6-422b-96f9-ced92e201920", "position": 0, "resource_type": null, "size": null, "state": "active", "url": "https://flooddata.ses.nsw.gov.au/dataset/3e198c8a-aac5-4d69-bb69-edb4eea38e12/resource/9d294c08-1811-4d6d-8274-b73489e5c24c", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2026-01-15T06:24:05.624202", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "format": "HTML", "hash": "", "id": "c82e86ed-c791-4375-ba74-4ade97e50b9e", "last_modified": null, "metadata_modified": "2026-01-21T20:42:03.818643", "mimetype": null, "mimetype_inner": null, "name": "", "package_id": "a914a8f8-30b6-422b-96f9-ced92e201920", "position": 1, "resource_type": null, "size": null, "state": "active", "url": "https://flooddata.ses.nsw.gov.au/dataset/3e198c8a-aac5-4d69-bb69-edb4eea38e12/resource/54615184-d6d3-42d0-b727-c16361cda800", "url_type": null, "zip_extract": false}], "tags": [{"display_name": "Campvale catchment", "id": "a74d5ba3-a9ac-493b-aa68-8d9b3aca1702", "name": "Campvale catchment", "state": "active", "vocabulary_id": null}, {"display_name": "Medowie", "id": "c502293d-d55b-4b06-b098-a200a3d286d3", "name": "Medowie", "state": "active", "vocabulary_id": null}, {"display_name": "Moffats Swamp catchment", "id": "8d36c31f-d7c6-4ce9-95a7-00d0406d4580", "name": "Moffats Swamp catchment", "state": "active", "vocabulary_id": null}, {"display_name": "hydraulic model", "id": "5ea1bf91-c991-4e1b-808e-2528b9741aa5", "name": "hydraulic model", "state": "active", "vocabulary_id": null}, {"display_name": "hydrologic model", "id": "306ddc3f-3866-4055-8fd7-0e4cd32a2a1a", "name": "hydrologic model", "state": "active", "vocabulary_id": null}], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}