{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.", "description": "

This is a Washington State extract downloaded from the USGS in February 2018 and projected into WA State Plane Coordinates South. Strahler Stream Order has been added. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. This high-resolution NHD, generally is developed at 1:24,000/1:12,000 scale, but many areas of Washington State have been improved to 1:4800 scale. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee. Stream Orders in Washington State range from 1 to 10. The smallest headwater streams are a 1, and the Columbia River is a 10. Best available data acquired from Ecology 03/2023.<\/SPAN><\/P><\/DIV><\/DIV>", "summary": "The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.", "title": "NHD Waterbodies 2023", "tags": [ "Reservoir", "HU8", "Gaging Station", "Hydrographic", "HU2", "Dam/Weir", "Sub-region", "Subregion", "Rapids", "Special Use Zone", "Basin", "US", "Tunnel", "Ice mass", "stream", "Special Use Zone Limit", "Administrative watershed units", "Point", "PointEvent", "Submerged Stream", "Spillway", "Sounding Datum Line", "Marsh", "HU-4 Subregion", "Coastline", "Well", "Swamp", "Nonearthen Shore", "Watershed Boundary Dataset", "Flow direction network", "Area of Complex Channels", "rivers", "Pond", "HU4", "Flume", "Stream Order", "Waterfall", "Boundaries", "Region", "Sink/Rise", "United States", "Water Intake Outflow", "Area to be submerged", "Wall", "surface water systems", "Estuary", "Lock Chamber", "Sub-basin", "WBD", "Rock", "artificial path", "Watershed Boundaries", "Connector", "HU10", "Gate", "Hazard Zone", "Bridge", "dams", "Subwatershed", "National Hydrography Dataset (NHD) Best Resolution", "Hydrologic Unit Code", "Reach code", "inlandWaters", "Drainage areas for surface water", "drainage systems and characteristics", "Canal/Ditch", "Levee", "Reef", "HU12", "Underground Conduit", "Line", "Subbasin", "HUC", "Hydrologic Units", "Wash", "FileGDB 10.1", "Reach", "lakes", "ForeShore", "Inundation Area", "Stream/River", "Playa", "WA", "Bay/Inlet", "Watershed", "Hydrography", "Hydrography", "Sea/Ocean", "Topographic" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 24000, "maxScale": 24000, "spatialReference": "", "accessInformation": "", "licenseInfo": "

None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data.<\/SPAN><\/P><\/DIV><\/DIV>", "portalUrl": "" }