Coastline - NSW Water Theme - GDA2020 Service

Created 04/04/2026

Updated 04/04/2026

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We have released a new GDA2020 version of our Foundational Spatial Data Framework (FSDF) datasets which replaces the current GDA94 version. This updated service aligns our spatial data with the national standard, improving accuracy, consistency, and compatibility with modern positioning technologies.

The previous service will remain available during the transition period as GDA94 services are retired, but users are encouraged to move to the new GDA2020 service as soon as practical.

Coastline - NSW Water Theme - GDA2020 Service

Metadata Portal Metadata Information Content TitleCoastline - NSW Water Theme - GDA2020 ServiceContent TypeHosted Feature LayerDescriptionNSW Coastline data is a linear feature class defining the line of contact between a body of water and the land. In particular, the line delineating the interface between land, internal waters and the “Territorial Sea” as defined by the Seas and Submerged Lands Act - No. 161 of 1973.The coastline defining Mean High Water Mark (MHWM) does not include MHWM within estuaries.Features within coastline feature class include:

  • Mean High Water Mark - the coastline defining Mean High Water Mark, it does not include MHWM within estuaries.
  • Mean Low Water Mark - the coastline defining Mean Low Water Mark, it does not include MLWM within estuaries.
Water security is one of Australia’s major challenges. Key users of the hydrology data are NSW State and Local Government agencies as well as Federal Government agencies. These bodies use this data to better manage State and Local Government assets. This hydrology data provides the NSW component of the Australian Hydrological Geospatial Fabric which is a critical input to the Australian Water Resources Information System.More widespread use of the hydrology data is also found in emergency management response and recovery efforts, hazard mitigation or disaster risk reduction, climate change, natural resource assessment, environmental planning and monitoring, insurance, mining and agriculture.Spatial Services continuously updates this theme with information sourced from relevant stakeholders and custodians; by data verification from other internal and external databases; research and through Spatial Services regular cycle of updating from aerial imagery and elevation data.Initial Publication Date06/02/2020Data Currency01/01/3000Data Update FrequencyOtherContent SourceData provider filesFile TypeESRI File Geodatabase (*.gdb)Attribution© State of New South Wales (Spatial Services, a business unit of the Department of Customer Service NSW). For current information go to spatial.nsw.gov.auData Theme, Classification or Relationship to other DatasetsNSW Water Theme of the Foundation Spatial Data Framework (FSDF)AccuracyThis dataset was captured by utilising the best available source at a variety of scales and accuracies, ranging from 1:500 to 1:250 000 according to the National Mapping Council of Australia, Standards of Map Accuracy (1975). Therefore, the position of the feature instance will be within 0.5mm at map scale for 90% of the well-defined points. That is, 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:100000 = 50m. A program to upgrade the spatial location and accuracy of data is ongoing.Spatial Reference System (dataset)GDA94Spatial Reference System (web service)EPSG:7844WGS84 Equivalent ToGDA2020Spatial ExtentFull StateContent LineageFor additional information, please contact us via the Spatial Services Customer HubData ClassificationUnclassifiedData Access PolicyOpenData QualityFor additional information, please contact us via the Spatial Services Customer HubTerms and ConditionsCreative CommonsStandard and SpecificationOpen Geospatial Consortium (OGC) implemented and compatible for consumption by common GIS platforms. Available as either cache or non-cache, depending on client use or requirement.  Data CustodianDCS Spatial Services346 Panorama AveBathurst NSW 2795Point of ContactPlease contact us via the Spatial Services Customer HubData AggregatorDCS Spatial Services346 Panorama AveBathurst NSW 2795Data DistributorDCS Spatial Services346 Panorama AveBathurst NSW 2795Additional Supporting InformationData DictionariesTRIM Number  

Files and APIs

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Additional Info

Field Value
Title Coastline - NSW Water Theme - GDA2020 Service
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/f9e3b1e6-4832-49c3-a1e1-9c0374559dc8
Remote Last Updated 01/04/2026
Contact Point
Spatial Services (DCS)
?datansw@customerservice.nsw.gov.au
Reference Period 01/04/2026
Geospatial Coverage New South Wales
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "Coastline - NSW Water Theme - GDA2020 Service". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-1-40762316d10e43f081ddf641f7f6e687