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This is a Washington State extract downloaded from the USGS in March 2019 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.
This feature class contains a BETA version of Water Type attached to the Skagit and Samish River Basin NHDFlowlines. This Beta version of the Water Type is the result of a pilot project. The field is for users of NHD who want access to Water Type and who are not under Forest Practices rules. The Water Type uses Shorelines Master Program type S streams and Fish Presence Data from both WA Dept Natural Resources and WA Dept Fish and Wildlife.
This is a Washington State extract downloaded from the USGS in March 2019 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.
This feature class contains a BETA version of Water Type attached to the Skagit and Samish River Basin NHDFlowlines. This Beta version of the Water Type is the result of a pilot project. The field is for users of NHD who want access to Water Type and who are not under Forest Practices rules. The Water Type uses Shorelines Master Program type S streams and Fish Presence Data from both WA Dept Natural Resources and WA Dept Fish and Wildlife.
This is a Washington State extract downloaded from the USGS in March 2019 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.
This feature class contains a BETA version of Water Type attached to the Skagit and Samish River Basin NHDFlowlines. This Beta version of the Water Type is the result of a pilot project. The field is for users of NHD who want access to Water Type and who are not under Forest Practices rules. The Water Type uses Shorelines Master Program type S streams and Fish Presence Data from both WA Dept Natural Resources and WA Dept Fish and Wildlife.
This is a Washington State extract downloaded from the USGS in March 2019 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.
This feature class contains a BETA version of Water Type attached to the Skagit and Samish River Basin NHDFlowlines. This Beta version of the Water Type is the result of a pilot project. The field is for users of NHD who want access to Water Type and who are not under Forest Practices rules. The Water Type uses Shorelines Master Program type S streams and Fish Presence Data from both WA Dept Natural Resources and WA Dept Fish and Wildlife.
The ROAD feature class stores the spatial location and attributes of the State of Washington, Department of Natural Resources’ (DNR) forest roads and of other DNR, public and selected private roads in the state. Other elements of the transportation network such as ferries, railroads, and trails are not included. Updating and editing efforts are primarily focused on roads in DNR managed state lands, adjunct roads or in areas that are covered by a published map that is undergoing an update. The ROAD layer includes basic attributes that are linked to the intersection-based road segments. These attributes store information about route id, road name, road number, control, responsibility, status, access, surface, classification, and abandonment.
The original road lines were entered primarily by digitizing from paper maps, scanning by machine, or derived stereoscopically from black and white photo imagery. They are currently updated and corrected as needed, in most cases using on-line, geo-referenced orthophotography, stereo color imagery, GPS or field survey.
This layer is used to help in road infrastructure planning and maintenance, Forest Practices and Road Maintenance and Abandonment Planning (RMAP) compliance reporting, forest management, timber sales planning, and is the basis for the ROAD_ROUTE_FT layer and associated event tables that currently record these maintenance activities and road easements. It is widely used as a layer in cartographic presentations and published maps.
The ROAD feature class stores the spatial location and attributes of the State of Washington, Department of Natural Resources’ (DNR) forest roads and of other DNR, public and selected private roads in the state. Other elements of the transportation network such as ferries, railroads, and trails are not included. Updating and editing efforts are primarily focused on roads in DNR managed state lands, adjunct roads or in areas that are covered by a published map that is undergoing an update. The ROAD layer includes basic attributes that are linked to the intersection-based road segments. These attributes store information about route id, road name, road number, control, responsibility, status, access, surface, classification, and abandonment.
The original road lines were entered primarily by digitizing from paper maps, scanning by machine, or derived stereoscopically from black and white photo imagery. They are currently updated and corrected as needed, in most cases using on-line, geo-referenced orthophotography, stereo color imagery, GPS or field survey.
This layer is used to help in road infrastructure planning and maintenance, Forest Practices and Road Maintenance and Abandonment Planning (RMAP) compliance reporting, forest management, timber sales planning, and is the basis for the ROAD_ROUTE_FT layer and associated event tables that currently record these maintenance activities and road easements. It is widely used as a layer in cartographic presentations and published maps.