Basin boundaries derived from terrain data

King County 20061002 Basin boundaries derived from terrain data One vector digital data King County, WA King County None DRNBASIN is replaced with a higher detail TOPO_CATCHMENT. The difference between the two is DRNBASIN was digitized from existing paper maps based on USGS quad maps in the early 1990s. While the TOPO_CATCHMENT was produced using Arc/Info GRID Watershed commands on 6 foot cell GRIDS built from LIDAR ascii ground model data. Topo_Catchment is higher in accuracy then DRNBASIN To replace existing King County Watershed layer DRNBASIN with higher accuracy watersheds based on Lidar. Watersheds delineate areas that water collect and flow out to another waterbody, i.e. a Basin, River, Lake or Sound Topo_Catchment is the master layer and is dissolved to produce Topo_Basin, Topo_Watershed, and Topo_WRIA by attributes. 20050601 20061004 publication date Complete As needed -122.888416 -120.905212 48.479267 46.580925 Not applicable hydro hydrology none Not applicable King County, WA Pacific NW Washington state None King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County. Ken Rauscher King County Dept. of Natural Resources and Parks, Water and Lands Resources Division GIS Analyst mailing and physical address

201 S Jackson St, Suite 706

Seattle WA 98104 USA 206-296-1922 firstname.lastname@kingcounty.gov http://www5.kingcounty.gov/sdc/DataImages/topo_basin.jpg JPG File of layer overlain on base of WA counties or local cities JPG ESRI ArcCatalog 9.2.5.1450 All attributes in DRNBASIN have been transfered to Topo_Catchment except for COUNTY and ACRES. Not all Catchment or Sub-Basin polygons have a Identification attribute value. Some catchments outside of King County have no ID value. Not all Basins have Sub-Basins. Topo_Catchment replaces DRNBASIN completely. The area that was updated is King County's Lidar extent. This includes all of King County and Basins in Snohomish that are part of the Lake Washington - Cedar Watershed. For each HYDROBASIN or TOPO_BASIN, a project area is built in Arc/Info 9.1 using the AML build_dem.aml. This AML builds a 2000 foot buffered Digital Elevation Model, Accumulation, and Slope grids for the basin area using the Bare Earth or Digital Ground Model Lidar grids. Clip existing WTRCRS per DRNBASIN's attribute BASIN_NAME or HYDROBASIN area. Import WTRCRS to a personal geodatabase. For WTRCRS, add field attributes DEPTH (Short, 4) for DEM "Stream Burning" of water courses, RATE (Short, 4) for geometry accuracy rating, and NOTES (Text, 254) for additional information for each line. Create polygon Shapefiles "DEMFIX" and point "PRPT" for each basin. Add field attribute DEPTH (Short, 4) to shapefile "DEMFIX" for DEM "Stream Burning" of water courses. Add attribute "CATCHMENT" (Text, 40) to "PRPT" for joining to existing DRNBASIN Polygon Attribute Table 20061004 Create Arcmap project per basin and add basin data. Correct WTRCRS geometry using KC and USGS 2002 orthophotos, Lidar products elevation, slope, hillshade, and contours for referance in Arcmap. Place shapefile PRPT Pour Points per existing DRNBASIN catchments. Calc catchment ID to PRPT attribute "CATCHMENT". Add "DEMFIX" polygons as needed to facilitated water flow over obstacles i.e. roads crossing streams and calculate a depth. Export geodatabase WTRCRS to shapefile WTRCRS After the basin WTRCRS is corrected and Pour Points added for each catchment, the AML mk_ws.aml (Make Watershed) is used to produce the catchments for each basin. The mk_ws.aml converts shapefiles WTRCRS, DEMFIX, and PRPT to coverages. The lines of WTRCRS and polygons of DEMFIX are converted to grids. The grids "burn" or subtract cell values for a stream course into the DEM using the DEPTH value to facilitate the correct flow path though the DEM. Fills the DEM for sinkholes, Finds Flow Direction of the DEM, and the Flow Accumulation of cells. The cells with greater than 40,000 cells flowing into them are extracted to grid STRM40KG, then converted to coverage STRM40KG. PRPT coverage is converted to grid, then snaped using Grid command snappour to the STRM40KG grid. The Grid command WATERSHED deliniates the catchement watershed boundaries to grid WSG (Watershed Grid). Grid WSG is converted to coverage WS (Watershed). In ArcEdit, the existing label points in WS are replaced with the PRPT point labels that have the catchment attribute. The WS is polygon rebuilt, then blank attribute polygons are deleted, and duplicate catchments are dissolved by the same catchment ID. The WS coverage is converted to the shapefile: WSC. 20061004 08260000 All King County WSC shapefile basins are fitted together using ArcGIS ArcToolBox command Integrate at 15 feet tolerance. Basins are merged together using the ArcToolBox Merge command into a GeoDataBase called DRNBASIN_NEW. Topology is created using "No Gaps" and "No Overlaps" rules. All topology errors are fixed in DRNBASIN_NEW. 20061004 A copy of bigwater is edited to delete the rivers. An existing old copy of DRNBASIN was updated with the modified bigwater layer using the command UPDATE. The updated DRNBASIN is cleaned up to eliminate slivers between bigwater and dnrbasin. The conflated DRNBASIN to Bigwater is UPDATED with DRNBASIN_NEW, dissolved using the attribute catchment to produce the new drnbasin TOPO_CATCHMENT. TOPO_CATCHMENT is cleaned of slivers, then the 3 child products (Basin, Watershed, and WRIA) are dissolved from topo_catchment. All four levels of topo_catchment are clipped with the King County boundary to produce TOPO_CATCHMENT_KC, TOPO_BASIN_KC, TOPO_WATERSHED_KC, and TOPO_WRIA_KC. 20061004 Quality control was done by comparing the original DRNBASIN catchments IDs to the new Topo_Catchment catchment IDs. Any missing catchments were added by using the command UPDATE and then MERGING of the sliver polygons generated from the UPDATE around the polygon. Multi part polygons caused by the original MERGING and UPDATE corrections were EXPLODED then MERGED using DRNBASIN as a guide. withheld 20061017 07275200 Split Upper White River basin into 4 basins: Lower White 100304, Greenwater 10036, Westfork 100305, Upper White stays 100303. Spit Skykomish basin into 6 basins: North Fork 70110, South Fork 70111, Beckler 70113, Miller 70112, Foss 70114, Tye 70115. Corrected Thorton & North Fork Tolt basin boundaries. 1-16-2008 Dataset copied. 08203900 Each time TOPO_CATCHMENT is updated this feature class is updated by a dissolve. 200810 and ongoing Metadata imported. withheld 14490900 Metadata imported. withheld 20100712 11250500 Vector Simple FALSE 189 TRUE FALSE coordinate pair 0.000250 0.000250 survey feet D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 North American Vertical Datum of 1988 1.000000 feet Explicit elevation coordinate included with horizontal coordinates Shape Feature Geometry ESRI Coordinates defining the features Shape Geometry 4 0 0 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 BASIN_NAME BASIN_NAME String 50 0 0 WRIA_NO WRIA_NO SmallInteger 2 5 0 WRIA_NAME WRIA_NAME String 50 0 0 WTRSHD_NAME WTRSHD_NAME String 50 0 0 topo_basin_area Feature Class 189 Shape.STArea() Shape.STArea() Double 0 0 0 Shape.STLength() Shape.STLength() Double 0 0 0 topo_basin_area ESRI WRIA_NO SHAPE Feature geometry. ESRI Coordinates defining the features. WRIA_NAME Shape.area Topo_Catchment contains all the attributes that are dissolved to form the 3 child layers: Topop_Basin, Topo_Watershed, and Topo_WRIA. Cheryl Wilder KCGIS Center Data Sales Coordinator Mailing and physical address

201 S Jackson St, Suite 700

Seattle WA 98104 USA 206-263-5220 /plibrary2/hydro/shapes/polygon/topo_basin.shp King County disclaims any warranty of use of any digital product or data beyond that for which it was designed. ESRI Shapefile 0.000 withheld Not available CD or DVD Read-only media, if offline Contact KCGIS Client Services for the cost of reproduction - http://www.kingcounty.gov/operations/GIS/ClientServices.aspx 20090105 King County Dept. of Natural Resources and Parks, Water and Lands Resources Division Ken Rauscher GIS Analyst Mailing and physical address

201 S Jackson St, Suite 706

Seattle WA 98104 USA 206-296-1922 firstname.lastname@kingcounty.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time ESRI Metadata Profile Ken Rauscher King County Dept. of Natural Resources and Parks, Water and Lands Resources Division GIS Analyst 206-296-1922 201 S Jackson St, Suite 706 Seattle WA 98104 US firstname.lastname@kingcounty.gov ArcGIS Metadata 1.0 Cheryl Wilder KCGIS Center Data Sales Coordinator 206-263-5220 201 S Jackson St, Suite 700 Seattle WA 98104 US Contact KCGIS Client Services for the cost of reproduction - http://www.kingcounty.gov/operations/GIS/ClientServices.aspx ESRI Shapefile withheld /plibrary2/hydro/shapes/polygon/topo_basin.shp Feature Class Basin boundaries derived from terrain data 2006-10-02 One King County King County, WA King County None For more information about this layer please see the <a href='https://www5.kingcounty.gov/sdc?Layer=TOPO_BASIN_AREA' rel='nofollow ugc'>GIS Data Catalog</a>. A delineation drainage areas that span in scale from large portions of a river basin, down to tributaries that drain to a large body receiving waters (e.g., Lake Washington). There is not a consistent method applied (for example stream order) to define scale of a basin to be identified. In general, these basins characterize large tributaries and rivers in Puget sound region. A basin is comprised of multiple catchments. Drainage areas derived from terrain data in Puget Sound region. Ken Rauscher King County Dept. of Natural Resources and Parks, Water and Lands Resources Division GIS Analyst 206-296-1922 201 S Jackson St, Suite 706 Seattle WA 98104 US firstname.lastname@kingcounty.gov http://www5.kingcounty.gov/sdc/DataImages/topo_basin.jpg JPG File of layer overlain on base of WA counties or local cities JPG Not applicable Pacific NW Washington state King County WA Not applicable hydro hydrology none hydrohydrologynonePacific NWWashington stateKing CountyWATOPO_BASIN_AREA (340)_AREA King County disclaims any warranty of use of any digital product or data beyond that for which it was designed. King County data are made available with the understanding that they shall be used exclusively by the obtainer or their authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County. <a target='_blank' href='https://kingcounty.gov/en/dept/kcit/data-information-services/gis-center/about/terms-conditions-copyrights' style='border-width: 0px; border-style: solid; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: ; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgb(59 130 246 / 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; --container-full-height: calc(100vh - 1rem); --container-max-height: 100vh; --dialog-max-height: 90vh; --tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-pan-x: ; --tw-pan-y: ; --tw-pinch-zoom: ; --tw-scroll-snap-strictness: proximity; --tw-gradient-from-position: ; --tw-gradient-via-position: ; --tw-gradient-to-position: ; --tw-ordinal: ; --tw-slashed-zero: ; --tw-numeric-figure: ; --tw-numeric-spacing: ; --tw-numeric-fraction: ; --tw-shadow-colored: 0 0 #0000; --tw-blur: ; --tw-brightness: ; --tw-contrast: ; --tw-grayscale: ; --tw-hue-rotate: ; --tw-invert: ; --tw-saturate: ; --tw-sepia: ; --tw-drop-shadow: ; --tw-backdrop-blur: ; --tw-backdrop-brightness: ; --tw-backdrop-contrast: ; --tw-backdrop-grayscale: ; --tw-backdrop-hue-rotate: ; --tw-backdrop-invert: ; --tw-backdrop-opacity: ; --tw-backdrop-saturate: ; --tw-backdrop-sepia: ; --tw-contain-size: ; --tw-contain-layout: ; --tw-contain-paint: ; --tw-contain-style: ; color: rgb(24, 112, 137); font-family: Cabin, "Avenir Next"; line-height: 1.5;' rel='nofollow ugc noopener noreferrer'>https://kingcounty.gov/en/dept/kcit/data-information-services/gis-center/about/terms-conditions-copyrights</a> publication date 2005-06-01 2006-10-04 Topo_Catchment is the master layer and is dissolved to produce Topo_Basin, Topo_Watershed, and Topo_WRIA by attributes. Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 1 -122.888416 -120.905212 48.479267 46.580925 Not all Catchment or Sub-Basin polygons have a Identification attribute value. Some catchments outside of King County have no ID value. Not all Basins have Sub-Basins. Topo_Catchment replaces DRNBASIN completely. The area that was updated is King County's Lidar extent. This includes all of King County and Basins in Snohomish that are part of the Lake Washington - Cedar Watershed. All attributes in DRNBASIN have been transfered to Topo_Catchment except for COUNTY and ACRES. Split Upper White River basin into 4 basins: Lower White 100304, Greenwater 10036, Westfork 100305, Upper White stays 100303. Spit Skykomish basin into 6 basins: North Fork 70110, South Fork 70111, Beckler 70113, Miller 70112, Foss 70114, Tye 70115. Corrected Thorton & North Fork Tolt basin boundaries. Each time TOPO_CATCHMENT is updated this feature class is updated by a dissolve. For each HYDROBASIN or TOPO_BASIN, a project area is built in Arc/Info 9.1 using the AML build_dem.aml. This AML builds a 2000 foot buffered Digital Elevation Model, Accumulation, and Slope grids for the basin area using the Bare Earth or Digital Ground Model Lidar grids. Clip existing WTRCRS per DRNBASIN's attribute BASIN_NAME or HYDROBASIN area. Import WTRCRS to a personal geodatabase. For WTRCRS, add field attributes DEPTH (Short, 4) for DEM "Stream Burning" of water courses, RATE (Short, 4) for geometry accuracy rating, and NOTES (Text, 254) for additional information for each line. Create polygon Shapefiles "DEMFIX" and point "PRPT" for each basin. Add field attribute DEPTH (Short, 4) to shapefile "DEMFIX" for DEM "Stream Burning" of water courses. Add attribute "CATCHMENT" (Text, 40) to "PRPT" for joining to existing DRNBASIN Polygon Attribute Table 2006-10-04 Create Arcmap project per basin and add basin data. Correct WTRCRS geometry using KC and USGS 2002 orthophotos, Lidar products elevation, slope, hillshade, and contours for referance in Arcmap. Place shapefile PRPT Pour Points per existing DRNBASIN catchments. Calc catchment ID to PRPT attribute "CATCHMENT". Add "DEMFIX" polygons as needed to facilitated water flow over obstacles i.e. roads crossing streams and calculate a depth. Export geodatabase WTRCRS to shapefile WTRCRS After the basin WTRCRS is corrected and Pour Points added for each catchment, the AML mk_ws.aml (Make Watershed) is used to produce the catchments for each basin. The mk_ws.aml converts shapefiles WTRCRS, DEMFIX, and PRPT to coverages. The lines of WTRCRS and polygons of DEMFIX are converted to grids. The grids "burn" or subtract cell values for a stream course into the DEM using the DEPTH value to facilitate the correct flow path though the DEM. Fills the DEM for sinkholes, Finds Flow Direction of the DEM, and the Flow Accumulation of cells. The cells with greater than 40,000 cells flowing into them are extracted to grid STRM40KG, then converted to coverage STRM40KG. PRPT coverage is converted to grid, then snaped using Grid command snappour to the STRM40KG grid. The Grid command WATERSHED deliniates the catchement watershed boundaries to grid WSG (Watershed Grid). Grid WSG is converted to coverage WS (Watershed). In ArcEdit, the existing label points in WS are replaced with the PRPT point labels that have the catchment attribute. The WS is polygon rebuilt, then blank attribute polygons are deleted, and duplicate catchments are dissolved by the same catchment ID. The WS coverage is converted to the shapefile: WSC. 2006-10-04 A copy of bigwater is edited to delete the rivers. An existing old copy of DRNBASIN was updated with the modified bigwater layer using the command UPDATE. The updated DRNBASIN is cleaned up to eliminate slivers between bigwater and dnrbasin. The conflated DRNBASIN to Bigwater is UPDATED with DRNBASIN_NEW, dissolved using the attribute catchment to produce the new drnbasin TOPO_CATCHMENT. TOPO_CATCHMENT is cleaned of slivers, then the 3 child products (Basin, Watershed, and WRIA) are dissolved from topo_catchment. All four levels of topo_catchment are clipped with the King County boundary to produce TOPO_CATCHMENT_KC, TOPO_BASIN_KC, TOPO_WATERSHED_KC, and TOPO_WRIA_KC. 2006-10-04 All King County WSC shapefile basins are fitted together using ArcGIS ArcToolBox command Integrate at 15 feet tolerance. Basins are merged together using the ArcToolBox Merge command into a GeoDataBase called DRNBASIN_NEW. Topology is created using "No Gaps" and "No Overlaps" rules. All topology errors are fixed in DRNBASIN_NEW. 2006-10-04 Quality control was done by comparing the original DRNBASIN catchments IDs to the new Topo_Catchment catchment IDs. Any missing catchments were added by using the command UPDATE and then MERGING of the sliver polygons generated from the UPDATE around the polygon. Multi part polygons caused by the original MERGING and UPDATE corrections were EXPLODED then MERGED using DRNBASIN as a guide. 2006-10-17 20200707 17262400 1.0 topo_basin_area 002 1141842.375000 1622341.750000 -146455.328000 539611.386000 1 Projected GCS_North_American_1983_HARN Linear Unit: Foot_US (0.304801) NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1640416.666666667],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-120.8333333333333],PARAMETER["Standard_Parallel_1",47.5],PARAMETER["Standard_Parallel_2",48.73333333333333],PARAMETER["Latitude_Of_Origin",47.0],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2926]]</WKT><XOrigin>-117104300</XOrigin><YOrigin>-99539600</YOrigin><XYScale>4000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.002</XYTolerance><ZTolerance>2</ZTolerance><MTolerance>2</MTolerance><HighPrecision>true</HighPrecision><WKID>2926</WKID><LatestWKID>2926</LatestWKID></ProjectedCoordinateSystem> 20260401 07213800 20260401 7214800 ItemDescription FALSE 150000000 5000 dataset EPSG 8.9.3(9.0.0) 189 20260401