20210428 12074200 1.0 FGDC CSDGM Metadata FALSE AvalanchePaths 002 1035946.325062 1726956.199273 481844.506245 1313322.030623 1 AvalanchePaths__ATTACHREL Relationship Projected GCS_North_American_1983_HARN Linear Unit: Foot_US (0.304801) NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_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_South_FIPS_4602_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",-120.5],PARAMETER["Standard_Parallel_1",45.83333333333334],PARAMETER["Standard_Parallel_2",47.33333333333334],PARAMETER["Latitude_Of_Origin",45.33333333333334],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2927]]</WKT><XOrigin>-117498300</XOrigin><YOrigin>-98850300</YOrigin><XYScale>3048.0060960121928</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>2927</WKID><LatestWKID>2927</LatestWKID></ProjectedCoordinateSystem> 20260413 04004800 20260413 04004800 150000000 5000 NAP 20260413 https://services.arcgis.com/IYrj3otxNjPsrTRD/arcgis/rest/services/WSDOTAvalancheAtlas/FeatureServer Feature Class Jordyn Mitchell Washington State Department of Transportation, Office of Information Technology GIS Database Administrator mitchejo@wsdot.wa.gov Jordyn Mitchell Download individual data sets from https://gisdata-wsdot.opendata.arcgis.com Avalanche Paths 2016 2018 2018 Anastasiya Grigoryev WSDOT Maintenance Operations GIS and Data Systems Manager Anastasiya Grecu grigoa@wsdot.wa.gov Mike Stanford WSDOT Avalanche Forecast/Control Supervisor and Artillery Program Manager Mike.Stanford@wsdot.wa.gov Berne WSDOT North Central Region 98826 US 509-667-2817 Mike Stanford Mike Stanford Mike Stanford John Stimberis WSDOT Avalanche Supervisor StimbeJ@wsdot.wa.gov <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data represents a statewide catalogue of avalanche paths. The paths are grouped by geographic regions across State and Federal transportation corridors within Washington. Data consists of individual path polygons and corresponding oblique photos. Attributes include frequency, magnitude, elevations, aspect, terrain characteristics, historical occurrences and other pertinent information. The data is updated and edited as needed. Ownership is shared by WSDOT Avalanche Forecasters and GIS & Data Systems Groups. Any questions can be directed to WSDOT Regional Avalanche Supervisors in North Central or South Central Regions as well as to HQMaintenanceTechnologyGroup@wsdot.wa.gov.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV> WSDOT Avalanche Paths Feature Service. WSDOT is committed to maintaining safe, efficient and reliable transportation systems. This commitment reaches beyond our highways to steep and often avalanche prone mountain slopes that threaten the highways and the traveling public. These polygons delineate known avalanche paths/shots along state routes. Washington State Department of Transportation, WSDOT Maintenance Operations GIS Specialists and Avalanche Crews WSDOT Avalanche Atlas Avalanche Winter Operations Maintenance WA Washington Transportation Washington State Department of Transportation -125.2932 -116.7239 45.3394 49.0404 <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Data provided here is used by WSDOT's transportation partners, government entities, schools, private businesses, and the general public. The WSDOT GIS Community actively promotes inter agency data exchange and resource sharing. The Washington State Department of Transportation shall not be liable for any activity involving this data with regard to lost profits or savings or any other consequential damages; or the fitness for use of the data for a particular purpose; or the installation of the data, its use, or the results obtained.</SPAN></P></DIV></DIV></DIV> Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388 1 -123.011836 -120.140272 48.933572 46.629382 WSDOT Avalanche Atlas Avalanche Winter Operations Maintenance Transportation WA Washington Mike Stanford WSDOT Avalanche Forecast/Control Supervisor and Artillery Program Manager Mike.Stanford@wsdot.wa.gov Berne WSDOT North Central Region 98826 US 509-667-2817 Mike Stanford Mike Stanford Anastasiya Grigoryev WSDOT Maintenance Operations GIS and Data Systems Manager Anastasiya Grecu grigoa@wsdot.wa.gov Anastasiya Grigoryev AvalanchePaths A collection of geographic features with the same geometry type Esri Feature Class 236 OBJECTID Internal feature number. Esri OID 4 10 0 Sequential unique whole numbers that are automatically generated. OBJECTID PathAbbreviation PathAbbreviation String 15 0 0 Shortened avalanche path name WSDOT AvalancheArea AvalancheArea String 25 0 0 General location of avalanche path WSDOT PathName PathName String 25 0 0 Name of the avalanche path WSDOT StartZoneElevationTop StartZoneElevationTop SmallInteger 2 5 0 Elevation of the top of the avalanche path starting zone WSDOT StartZoneElevationBase StartZoneElevationBase SmallInteger 2 5 0 Elevation of the bottom of the avalanche path starting zone WSDOT RoadElevation RoadElevation SmallInteger 2 5 0 Elevation at which the road crosses the avalanche path WSDOT RunoutElevationBase RunoutElevationBase SmallInteger 2 5 0 Elevation of the bottom of the avalanche path runout zone WSDOT VerticalFall VerticalFall SmallInteger 2 5 0 Vertical fall of avalanche path WSDOT PathLength PathLength SmallInteger 2 5 0 Length of avalanche path WSDOT StartZoneAspect StartZoneAspect String 10 0 0 Aspect of avalanche path start zone WSDOT SHAPE Feature geometry. Esri Geometry 4 0 0 Coordinates defining the features. SHAPE SlopeAngleStart SlopeAngleStart Average slope angle of avalanche path start zone. WSDOT SmallInteger 2 5 0 SlopeAngleTrack SlopeAngleTrack Average slope angle of avalanche path track. WSDOT SmallInteger 2 5 0 AlphaAngle AlphaAngle Alpha angle of avalanche path. WSDOT SmallInteger 2 5 0 StartZoneDescription StartZoneDescription String 500 0 0 Description of avalanche path start zone WSDOT TrackDescription TrackDescription String 500 0 0 Description of avalanche path track WSDOT RunoutDescription RunoutDescription String 500 0 0 Description of avalanche path road/runout zone WSDOT FrequencyDescription FrequencyDescription String 500 0 0 Last update/frequency of avalanche path events WSDOT HistoricEvents HistoricEvents String 500 0 0 Event history of avalanche path WSDOT MaxSize MaxSize String 5 0 0 Potential size rating using the destructive scale for the magnitude of a slide in the avalanche path WSDOT ReturnPeriod ReturnPeriod SmallInteger 2 5 0 Return period is expressed as average time between avalanches in a given location. WSDOT TrackAspect TrackAspect String 10 0 0 Return Interval for the avalanche path WSDOT TrackElevationBase TrackElevationBase SmallInteger 2 5 0 Elevation of the bottom of the avalanche path track WSDOT RunoutAspect RunoutAspect String 10 0 0 Aspect of the avalanche path runout zone WSDOT RecordCreateDate RecordCreateDate Date 8 0 0 date of feature creation WSDOT RecordCreateUserID RecordCreateUserID String 128 0 0 the user that created the feature WSDOT RecordUpdateDate RecordUpdateDate Date 8 0 0 the date that the feature was updated WSDOT RecordUpdateUserID RecordUpdateUserID String 128 0 0 the user that updated the feature WSDOT GlobalID GlobalID GlobalID 38 0 0 BetaAngle BetaAngle Beta angle of avalanche path. WSDOT SmallInteger 2 5 0 SHAPE.STArea() SHAPE.STArea() Double 0 0 0 SHAPE.STLength() SHAPE.STLength() Double 0 0 0 Frequency Frequency is expressed as a ratio of avalanches per year. WSDOT Frequency String 50 0 0 dataset EPSG 6.3(9.0.0) 236 Simple FALSE 236 TRUE FALSE Anastasiya Grecu WSDOT Maintenance Operations GIS and Data Systems Manager Anastasiya Grecu grecua@wsdot.wa.gov Anastasiya Grecu Harlan Sheppard WSDOT SheppaH@wsdot.wa.gov Alan Willard WSDOT WillarA@WSDOT.WA.GOV