The Parcel layer consists of parcels that are areas land in which the Department of Natural Resources holds some interest and are located anywhere in the upland area of the State of Washington. Three types of Parcels are currently held in the parcel layer. The number of Parcel types may increase in the future. Ownership Parcels, parcel type code 1, consist of Washington State owned land managed by the Department of Natural Resources. Most ownership parcels are held and managed for the benefit of some trust such as the Common School and Indemnity trust. Of the several parcel types, only Ownership Parcels represent the entire extent of the particular type of land managed by DNR. The other parcel types are incomplete data sets. Disposed Parcels, parcel type code 2, consist of ownership parcels that have been disposed of since July 1, 2007. A very few parcels disposed of prior to that date are also included. Easement Parcels, parcel type code 3, consist of various types of easements acquired for the State by the Department. Some of the Easements are negative easements over land not owned by the State, for example Conservation Easements which remove certain development rights away for the parcel owner. Other Easements are positive rights acquired by the State, such as roadway easements.WA DNR Managed Land Parcels Metadata

For large areas, like Washington State, download as a file geodatabase. Large data sets like this one, for the State of Washington, may exceed the limits for downloading as shape files, excel files, or KML files. For areas less than a county, you may use the map to zoom to your area and download as shape file, excel or KML, if that format is desired.General DescriptionThis layer shows only Active Roads on DNR Lands in black. This does not include abandoned, orphaned, decommisioned, or closed roads on DNR lands. Roads not on DNR Lands are of unknown status are shown in grey. Roads not on DNR lands and of unknown status may not be drivable. IncludesThe 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. ContactWashington State Department of Natural Resources (WA DNR) Engineering DivisionAlexandra WashburnAlexandra.Washburn@dnr.wa.gov Updating EffortsUpdating 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 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.Roads on DNR Lands should be edited frequently by division staff.Roads outside of DNR Lands are probably edited much less frequently. The group in mapping that did this, does not do it anymore.AttributesThe 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.PurposeThis 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 NDMPL (Washington State Non-Department of Natural Resources Major Public Lands) data contains ownership parcels for Federal, State (excluding WA DNR), County and City lands within the State of Washington. It also includes Tribal administrative boundaries. The NDMPL data layer is a polygon dataset and does not contain arc attribute information for ownership boundaries. This data is not connected to WA DNR's Cadastre layers (these data include WADNR ownership, Public Land Survey System and other cadastral data). As updates are made to Cadastre layers, they may not be reflected in NDMPL.WA Major Public Lands MetadataClick to downloadThis layer was last updated October 2021.

Washington Department of Natural Resources Local Unit. These areas are administrative subunits of a Washington Department of Natural Resources District.WA DNR Units Metadata

This dataset is used to track wildfire information, assess wildfire risks, and to plan wildfire prevention activities.

It includes information about wildfires that have occurred on lands protected by the Washington State Department of Natural Resources, 2008 to present.This dataset is used to track wildfire information, assess wildfire risks, and to plan wildfire prevention activities.

Click to downloadClick for metadataService URL: https://gis.dnr.wa.gov/site2/rest/services/Public_Forest_Practices/WADNR_PUBLIC_FP_Water_Type/MapServer/4For large areas, like Washington State, download as a file geodatabase. Large data sets like this one, for the State of Washington, may exceed the limits for downloading as shape files, excel files, or KML files. For areas less than a county, you may use the map to zoom to your area and download as shape file, excel or KML, if that format is desired.The DNR Forest Practices Wetlands Geographic Information System (GIS) Layer is based on the National Wetlands Inventory (NWI). In cooperation with the Washington State Department of Ecology, DNR Forest Practices developed a systematic reclassification of the original USFWS wetlands codes into WAC 222-16-035 types. The reclassification was done in 1995 according to the Forest Practice Rules in place at the time. The WAC's for defining wetlands are 222-16-035 and 222-16-050.The DNR Forest Practices Wetlands Geographic Information System (GIS) Layer is based on the National Wetlands Inventory (NWI). In cooperation with the Washington State Department of Ecology, DNR Forest Practices developed a systematic reclassification of the original USFWS wetlands codes into WAC 222-16-035 types. The reclassification was done in 1995 according to the Forest Practice Rules in place at the time. The WAC's for defining wetlands are 222-16-035 and 222-16-050.It is intended that these data be only a first step in determining whether or not wetland issues have been or need to be addressed in an area. The DNR Forest Practices Division and the Department of Ecology strongly supports the additional use of hydric soils (from the GIS soils layer) to add weight to the call of 'wetland'. Reports from the Department of Ecology indicate that these data may substantially underestimate the extent of forested wetlands. Various studies show the NWI data is 25-80% accurate in forested areas. Most of these data were collected from stereopaired aerial photos at a scale of 1:58,000. The stated accuracy is that of a 1:24,000 map, or plus or minus 40 feet. In addition, some parts of the state have data that are 30 years old and only a small percentage have been field checked. Thus, for regulatory purposes, the user should not rely solely on these data. On-the-ground checking must accompany any regulatory call based on these data.The reclassification is based on the USFWS FWS_CODE. The FWS_CODE is a concatenation of three subcomponents: Wetland system, class, and water regime. Forest Practices further divided the components into system, subsystem, class, subclass, water regime, special modifiers, xclass, subxclass, and xsystem. The last three items (xsomething) are for wetland areas which do not easily lend themselves to one class alone. The resulting classification system uses two fields: WLND_CLASS and WLND_TYPE. WLND_CLASS indicates whether the polygon is a forested wetland (F), open water (O), or a vegetated wetland (W). WLND_TYPE, indicates whether the wetland is a type A (1), type B (2), or a generic wetland (3) that doesn't fit the categories for A or B type wetlands. WLND_TYPE = 0 (zero) is used where WLND_CLASS = O (letter "O").

The wetland polygon is classified as F, forested wetland; O, open water; or W, vegetated wetland depending on the following FWS_CODE categories: F O W --------------------------------------------------- Forested Open Vegetated Wetland Water Wetland --------------------------------------------PFO* POW PUB5 E2FO PRB* PML2 PUB1-4 PEM* PAB* L2US5 PUS1-4 L2EM2 PFL* PSS* L1RB* PML1 L1UB*
L1AB* L1OW L2RB* L2UB* L2AB* L2RS* L2US1-4 L2OW

• indicates inclusion of the subcategory (ie. PEM* includes PEM1F, PEM1FB, etc.).

DNR FOREST PRACTICES WETLANDS DATASET ON FPARS Internet Mapping Website: The FPARS Resource Map and Water Type Map display Forested, Type A, Type B, and "other" wetlands. Open water polygons are not displayed on the FPARS Resource Map and Water Type Map in an attempt to minimize clutter. The following code combinations are found in the DNR Forest Practices wetlands dataset:

WLND_CLASS WLND_TYPE wetland polygon classification F 3 Forested wetland as defined in WAC 222-16-035 O 0 *NWI open water (not displayed on FPARS Resource or Water Type Maps) W 1 Type A Wetland as defined in WAC 222-16-035 W 2 Type B Wetland as defined in WAC 222-16-035 W 3 other wetland

• NWI open water polygons are indicated by WLND_CLASS = O and WLND_TYPE = 0. Open water is used in the USFWS and WAC 222-16-035 classification system. These open water polygons are not included in the FPARS Resource Map and Water Type Map views of this dataset in an attempt to minimize clutter on the FPARS maps.

SINGLE-TOPIC MAPS

The Portal can be complex, so we've made several single-topic maps to simplify things.

Seismic Scenarios Catalog
Interactive map provides loss estimates for a suite of earthquake scenarios on various faults. Each of the twenty scenarios has additional Hazus and Summary reports for viewing or download.
	Layers generally include: projected damage to buildings and infrastructure injuries and fatalities displaced households building economic loss statistical population information
Natural Hazards
Natural hazards interactive map showing information relating to faults, landslides, earthquakes, tsunamis, and volcanoes. Ideal for homeowners.
	Layers include: seismogenic features (faults and earthquakes) landslides ground response to earthquakes tsunami evacuation tsunami inundation volcano hazards naturally occurring hazardous minerals radon seismic scenarios coal mine maps and locations
Tsunami Evacuation Map
Tsunami evacuation information for areas along the Pacific Coast, Strait of Juan de Fuca, and northern Puget Sound communities. Data was developed from tsunami evacuation brochures developed with the cooperation of coastal communities, counties, and the Department of Emergency Management
	Layers include: evacuation routes and zones assembly areas local landmarks evacuation brochure boundaries
Geothermal Resources
Geothermal resource interactive map, with temperature, chemistry, geophysical, and fault data along with statewide geothermal favorability modeling.
	Layers include: thermal and mineral springs geothermal wells geothermal direct-use data geothermal favorability modeling geophysical data volcanic vents
Subsurface Data

The Forest Practices Application Mapping Tool is a Web Application designed for Forest Lands Owners to get the information necessary to review and make Forest Practices Applications through the Forest Practices Division of the Washington Department of Natural Resources.

For large areas, like Washington State, download as a file geodatabase. Large data sets like this one, for the State of Washington, may exceed the limits for downloading as shape files, excel files, or KML files. For areas less than a county, you may use the map to zoom to your area and download as shape file, excel or KML, if that format is desired.Information for SOILS data layer was derived from the Private Forest Land Grading system (PFLG) and subsequent soil surveys. PFLG was a five-year mapping program completed in 1980 for the purpose of forestland taxation. It was funded by the Washington State Department of Revenue. The Department of Natural Resources, Soil Conservation Service (now known as the Natural Resources Conservation Service or NRCS), USDA Forest Service and Washington State University conducted soil mapping cooperatively following national soil survey standards. Private lands having the potential of supporting commercial forests were surveyed along with interspersed small areas of State lands, Indian tribal lands, and federal lands. Because this was a cooperative soil survey project, agricultural and non-commercial forestlands were included within some survey areas. After the Department of Natural Resources originally developed its geographic information system, digitized soil map unit delineations and a few soil attributes were transferred to the system. Remaining PFLG soil attributes were later added and are now available through associated lookup tables. SCS (NRCS) soils data on agricultural lands also have been subsequently added to this data layer. The SOILS data layer includes approximately 1,100 townships with wholly or partially digitized soils data. State and private lands which have the potential of supporting commercial forest stands were surveyed. Some Indian tribal and federal lands were surveyed. Because this was a cooperative soils survey project, agricultural and non-commercial forestlands were also included within some survey areas. After the Department of Natural Resources originally developed its geographic information system, digitized soils delineations and a few soil attributes were transferred to the system. Remaining PFLG soil attributes were added at a later time and are now available through associated lookup tables. SCS soils data on agricultural lands also have subsequently been added to this data layer. This layer includes approximately 1, 100 townships with wholly or partially digitized soils data (2,101 townships would provide complete coverage of the state of Washington).-

The soils_sv resolves one to many relationships and as such is one of those special "DNR" spatial views ( ie. is implemented similar to a feature class). Column names may not match between SOILS_SV and the originating datasets. Use limitations

This Spatial View is available to Washingotn DNR users and those with access to the Washington State Uplands IMS site.

The following cautions only apply to one-to-many and many-to-many spatial views! Use these in the metadata only if the SV is one-to-many or many-to-many.

CAUTIONS: Area and Length Calculations: Use care when summarizing or totaling area or length calculations from spatial views with one-to-many or many-to-many relationships. One-to-many or many-to-many relationships between tabular and spatial data create multiple features in the same geometry. In other words, if there are two or more records in the table that correspond to the same feature (a single polygon, line or point), the spatial view will contain an identical copy of that feature's geometry for every corresponding record in the table. Area and length calculations should be performed carefully, to ensure they are not being exaggerated by including copies of the same feature's geometry.

Symbolizing Spatial Features:
Use care when symbolizing data in one-to-many or many-to-many spatial views. If there are multiple attributes tied to the same feature, symbolizing with a solid fill may mask other important features within the spatial view. This can be most commonly seen when symbolizing features based on a field with multiple table records.

Labeling Spatial Features: Spatial views with one-to-many or many-to-many relationships may present duplicate labels for those features with multiple table records. This is because there are multiple features in the same geometry, and each one receives a label.Soils Metadata

No metadata record was provided with the data. This record is populated with information from the GeoTerra technical report downloaded from the Washington Dept. of Natural Resources Washington Lidar Portal. The technical report is available for download from the link provided in the URL section of this metadata record.

Washington Department of Natural Resources (WA DNR) contracted with GeoTerr...

A map of DNR Recreation sites including recreation sitescamp sitestrailheadsday-usewater accesswinter recreationtrailheadstoiletsbased upon the layer SHARED_CRT.DNR_REC_SITES, and filtered on various fields.

For large areas, like Washington State, download as a file geodatabase. Large data sets like this one, for the State of Washington, may exceed the limits for downloading as shape files, excel files, or KML files. For areas less than a county, you may use the map to zoom to your area and download as shape file, excel or KML, if that format is desired.DNR Water Bodies (WB) and DNR Watercourses (WC) collectively known as DNR Hydro, contain water feature location and water type that is used by the Forest Practices program to determine the amount and pattern of riparian buffer protection required during forest practices activities. The water type is a Washington State Department of Natural Resources (DNR) classification system of streams and water bodies that identifies whether or not streams/water bodies have potential fish habitat, and whether or not streams experience perennial or seasonal flow.

WC Hydro represents water courses as arcs or lines. These occur alone as single arcs representing streams, ditches, or pipelines, or as centerlines through water body polygons such as double-banked streams, lakes, impoundments, reservoirs, wet areas, or glaciers. WB represents water bodies as polygonal features. WB Hydro includes features such as Puget Sound, lakes, wet areas, reservoirs, impoundments, glaciers, islands, and dams. WS represents shorelines as polygon perimeter arcs and are edited coincidentally with WB. WC and WB are edited daily and simultaneously; updates are posted weekly for internal DNR use and monthly for external use. Routes can be built on the WC by using the whole stream identifier (WC_LLID_NR). DNR HYDRO is continually updated through the DNR Forest Practices Water Type Modification Form process. DNR HYDRO is mixed scale. The nominal scale is considered 1:24,000, but some data at larger scales are included.Watercourses Layer Metadata

The Forest Practices Abandoned Roads (ROPA.FPTRANS_ABANDONED_RDS) data layer, an ArcSDE read-only data layer, represents only officially abandoned and orphaned roads existing within the state of Washington. All active roads are now updated and maintained in the DNR's Proprietary Roads (ROPA.ROADS) data layer. The original data layer, TRANS_ROAD_RTE_SV, which originally joined the TRANS spatial data to both the TRANS_ROAD table (road characteristics) using the TRANS_ARC_NO field, and to the TRANS_RTE table using the TRANS_RTE_REF_NO field, has now been split into two data layers. One data layer (ROPA.FPTRANS_ABANDONED_RDS) consists of all abandoned and orphaned roads; the other (ROPA.FPTRANS_OTHER_RTS) consists of trails, railroads, railroad grades, and ferry crossings.Roads abandoned using the official Forest Practices approval process and Roads Orphaned prior to 1975ROPA.FPTRANS_ABANDONED_RDS OBJECTID Internal feature number.

Internal feature number.

TRANS_ID Unique identifier for each arc. Used as a relate item to relate the Roads Table to the TRANS spatial data.

Unique identifier for each arc. Used as a relate item to relate the Roads Table to the TRANS spatial data.data. TRANS_RTE_TY_CD Type of transportation route the linear feature represents. Classification of a transportation route is based on the primary mode of transportation on the route.

Type of transportation route the linear feature represents. Classification of a transportation route is based on the primary mode of transportation on the route. Orphaned Road

Orphaned RoadType of transportation route the linear feature represents. Classification of a transportation route is based on the primary mode of transportation on the route.TRANS_RTE_TY_LABEL_NM The type of transportation route the linear feature represents written out in English as opposed to a code. Classification of a transportation route is based on the primary mode of transportation on the route.

The type of transportation route the linear feature represents written out in English as opposed to a code. Classification of a transportation route is based on the primary mode of transportation on the route.Abandoned Road Roads abandoned using the official Forest Practices approval process

Roads abandoned using the official Forest Practices approval processOrphaned Road Roads orphaned using the official Forest Practices approval process

Roads orphaned using the official Forest Practices approval processThe type of transportation route the linear feature represents written out in english as opposed to a code. Classification of a transportation route is based on the primary mode of transportation on the route. TRANS_RTE_ID Transportation route identifier in common use.

Transportation route identifier in common use.Alphanumeric characters representing an abbreviation of the road name or number, for example, "I-5". (Allow NULL Values, NON-REQUIRED) TRANS_RTE_NM Full textual name of transportation route.

Full textual name of transportation route.Alphanumeric characters representing the road name, for example, "NORTH CASCADES HWY". (Allow NULL Values, NON-REQUIRED) ABANDONMENT_ACCEPTANCE_DT Date when the official road abandonment documentation is approved by the DNR Region Forest Practices official.

Date when the official road abandonment documentation is approved by the DNR Region Forest Practices official.Date when the official road abandonment documentation is approved by the DNR Region Forest Practices official.(Allow NULL Values, NON-REQUIRED) ABANDONMENT_FPA_NO The Forest Practices Application Number (FPAN) that pertains to the particular road abandonment(s).

The Forest Practices Application Number (FPAN) that pertains to the particular road abandonment(s).The Forest Practices Application Number (FPAN) that pertains to the particular road abandonment(s). (Allow NULL Values, NON-REQUIRED) SHAPE_SOURCE_ACCURACY_CD The codes that explain how the data was input into the database.

The codes that explain how the data was input into the database.10 Photogrammetrically derived

Photogrammetrically derived20 Machine scanned 30 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate31 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate32 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate33 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate34 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate35 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate36 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate37 Contractor digitized from USGS 7.5' separate

Contractor digitized from USGS 7.5' separate38 DNR digitized from DNR Water Type Maps

DNR digitized from DNR Water Type Maps39 DNR digitized from National Wetlands Inventory

DNR digitized from National Wetlands Inventory40 DNR digitized from National Wetlands Inventory

DNR digitized from National Wetlands Inventory99 DNR digitized from National Wetlands Inventory

DNR digitized from National Wetlands InventoryThe codes that explain how the data was input into the database. (Allow NULL Values, NON-REQUIRED) SHAPE_SOURCE_ACCURACY_LBL The label names that describe in English the codes that explain how the data was input into the database.

The label names that describe in English the codes that explain how the data was input into the database.The label names that describe in english the codes that explain how the data was input into the database. SHAPE System generated field. Coordinates defining the features. SHAPE.LEN System generated field.

Analysis of landslide susceptibility by the DNR / Washington Geologic Survey completed in 2017. These data were produced to provide attribute and spatial information on deep-seated landslide susceptibility. The goal of this data is to estimate the extent of deep-seated landslide susceptible areas. This data is only an estimate of deep-seated landslide susceptible areas, deep-seated landslides can occur outside of the bounds of these polygons. This data is nonregulatory and is intended for informational purposes. It may not be suitable for legal, engineering, forestry, or surveying purposes; but it is intended to assist planners, homeowners, regulators, and others by identifying areas to seek further geologic investigation in before developing, or areas to avoid. Users of this information should consider their intended application, and review or consult the accompanying documentation, to determine the usability of the data for themselves.Data was clipped to Puyallup City limits and converted from raster to Polygon by Puyallup GIS.

Click here to downloadClick for metadataService URL: https://gis.dnr.wa.gov/site2/rest/services/Public_Forest_Practices/WADNR_PUBLIC_FP_Rule/MapServer/7This feature class was developed as a cooperative project between the Department of Natural Resources Forest Practices Division, the Department of Ecology, and the Olympic National Forest. The data set was designed as a polygon coverage, delineated on 1:250,000- scale map overlays and digitized in 1991. It was plotted and proofed, but not completed at that time. Beginning in August, 1994 the coverage STRMTEMP was edited, corrected, and proofed. The data set is now a polygon feature class and shows only Class AA, A, and B polygons. It does not address Lake Class completely (some lakes are delineated, some not); see notes below for explanation. Specific conditions of certain stream segments are also not addressed by the feature class. The WAC MUST be referred to whenever this data set is used. The 1991 MPL coverage was used in delineating the extent of AA polygons. Changes through time in Federal land boundaries may affect the classification of waters in those lands. SUMMARY OF TEMPERATURE CLASSIFICATIONS DESIGNATED IN CHAPTER 173-201A WAC WATERQUALITY STANDARDS FOR SURFACE WATERS OF THE STATE OF WASHINGTON WAC 173-201A-030 General water use and criteria classes (1) Class AA (extraordinary) Temperature shall not exceed 16.0 degrees C (freshwater) or 13.0 degrees C (marine water) due to human activities. (2) Class A (excellent) Temperature shall not exceed 18.0 degrees C (freshwater) or 16.0 degrees C (marine water) due to human activities. (3) Class B (good) Temperature shall not exceed 21.0 degrees C (freshwater) or 19.0 degrees C (marine water) due to human activities. (4) Class C (fair) Temperature shall not exceed 22.0 degrees C due to human activities. For all of the above classes, when natural conditions exceed the listed temperature, no temperature increases will be allowed which will raise the receiving water temperature by greater than 0.3 degrees C. (5) Lake Class Temperature - no measurable change from natural conditions. *** Notes regarding WAC 173-201A sections 130 and 140 - Specific classifications for fresh and marine waters: All lakes and their feeder streams are classified as Lake Class. In this data set some large lakes and their feeder streams have had polygons created around them. These are shown as Class AA. Many lakes too small to be separately delineated may be contained within Class B, A, or AA polygons. Some stream segments have special conditions applied to their temperature standards. These conditions are listed in the WAC but are not delineated in the polygon coverage. These include the Columbia River, Duwamish River, Grande Ronde River, Hoquiam River, Lake Washington Ship Canal, Mill Creek (near Walla Walla), Palouse River, Pend Oreille River, Puyallup River, Skagit River, Snake River, Spokane River, Walla Walla River, Wishkah River, Yakima River, and Tacoma city waterway in Commencement Bay. These Special temperature designations are for the stream waters in the listed segment only. Temperature standards for all waters feeding that segment are as shown in the polygon coverage. This data set is a polygon coverage, and does not contain information on all surface waters listed in the WAC. All questions pertaining to temperature classification of surface waters in Washington must be clarified by referring to the WAC.

This map service layer shows the seagrass species present at each site sampled (2000-2015) by a monitoring program covering greater Puget Sound. The monitoring is conducted by the Washington Department of Natural Resources. More recent data (2000-2017) is included in the complete dataset that is available for download.

DOWNLOAD RASTER IMAGERYRS-FRIS Version 5.2 is a remote-sensing based forest inventory for WA DNR State Trust Lands.Predictions are derived from three-dimensional photogrammetric point cloud data (DAP), field measurements, and statistical methods. RS-FRIS 5.2 was constructed using remote sensing data collected in 2021 and 2022, and incorporates additional depletions for selected harvests completed after the source imagery was acquired. RS-FRIS combined origin year rasters report age and origin year at 0.1 acre resolution using a hierarchy of data sources.

Input datasets:Washington Department of Ecology: Case Culverts (2015); WRIA (2000)Washington Department of Fish & Wildlife: Case Culverts (2015)Washington Department of Natural Resources: Case Culverts (2015); Non-DNR Major Public Lands (2014)Washington Department of Parks: Case Culverts (2015)Washington Department of Transportation: Case Culverts (2015)

Click to downloadClick for metadataService URL: https://gis.dnr.wa.gov/site2/rest/services/Public_Forest_Practices/WADNR_PUBLIC_FP_Unstable_Slopes/MapServer/3The siteclass data layer was created for use in implementing Forest Practices' Riparian Management Rules. (See WAC 222-30-021 and 222-30-022.)

The siteclass data layer was derived from the DNR soils data layer's site index codes and major tree species codes for western and eastern Washington soils contained in the layer's Soils-Main table and Soils-Pflg (private forest land grade) table. Site index ranges in the Soils_PFLG took precedence over site index ranges in the Soils-Main table where data existed.The siteclass data layer was created for use in implementing new ForestPractices' Riparian Management Rules. (See WAC 222-30-021 and 222-30-022.) The siteclass information was derived from the DNR soils data layer's site indexcodes and major tree species codes for western and eastern Washington soilscontained in the layer's Soils-Main table and Soils-Pflg (private forest landgrade) table. Site index ranges in the Soils_PFLG took precedence over siteindex ranges in the Soils-Main table where data existed.Siteclass codes as derived from the soil survey:For Western Washington, the 50 year site index is used SITECLASS SITE INDEX RANGE I 137+ II 119-136 III 97-118 IV 76-96 V 1-75For Eastern Washington, the 100 year site index is used SITECLASS SITE INDEX RANGE I 120+ II 101-120 III 81-100 IV 61-80 V 1-60In addition to the coding scheme above, the following codes were added forrule compliance: SITECLASS DESCRIPTION 6 (Red Alder) The soils major species code indicated Red Alder 7 (ND/GP) No data), NA, or gravel pit 8 (NC/MFP) Non-commercial or marginal commercial forest land 9 (WAT) Water body(Rule note: If the site index does not exist or indicates red alder,noncommercial, or marginally commercial species, the following apply:If the whole RMZ width is within those categories, use site class V.If those categories occupy only a portion of the RMZ width, then use thesite index for conifer in the adjacent soil polygon.)WADNR SOILS LAYER INFORMATION LAYER: SOILS GEN.SOURCE: State soils mapping program CODE DOCUMENT: State soil surveys CONTACT: NA COVER TYPE: Spatial polygon coverage DATA TYPE: Primary data Information for the SOILS data layer was derived from the Private Forest Land Grading system (PFLG) and subsequent soil surveys. PFLG was a five year mapping program completed in 1980 for the purpose of forest land taxation. It was funded by the Washington State Department of Revenue in cooperation with the Department of Natural Resources, Soil Conservation Service (SCS), USDA Forest Service and Washington State University. State and private lands which had the potential of supporting commercial forest stands were surveyed. Some Indian tribal and federal lands were surveyed. Because this was a cooperative soil survey project, agricultural and non- commercial forest lands were also included within some survey areas. After the Department of Natural Resources originally developed its geographic information system, digitized soils delineations and a few soil attributes were transferred to the system. Remaining PFLG soil attributes were added at a later time and are now available through associated lookup tables. SCS soils data on agricultural lands also have subsequently been added to this data layer. Approximately 1100 townships wholly or partially contain digitized soils data (2101 townships would provide complete coverage of the state of Washington). SOILS data are currently stored in the Polygon Attribute Table (.PAT) and INFO expansion files. COORDINATE SYSTEM: WA State Plane South Zone (5626) (N. zone converted to S. zone) COORDINATE UNITS: Feet HORIZONTAL DATUM: NAD27 PROJECTION NAME: Lambert Conformal Conic **** MAJOR CODES USED FOR SITECLASS DATA*****PFLG DATA: ITEM: PFLG.MAJ.SPEC TITLE: Potential major tree species for given soil FORMAT: INPUT OUTPUT DATA DECIMAL ARRAY ARRAY WIDTH WIDTH TYPE PLACES OCCUR. INDEX ------------------------------------------------- 3 3 C 0 0 0 CODE TABLE OR VALUE RANGE: SOIL.MAJ.SPEC.CODE DESCRIPTION: Potentially major tree species for a given soil type. The data carried by this item describes a major commercial tree species that could potentially grow on a specific soil type as identified in the Private Forest Land Grading program (PFLG). Non-tree codes are also included to map non-soil ground cover, e.g. water, gravel pits. ITEM: PFLG.SITE.INDEX TITLE: Mean site index calc.from trees on given soil FORMAT: INPUT OUTPUT DATA DECIMAL ARRAY ARRAY WIDTH WIDTH TYPE PLACES OCCUR. INDEX ------------------------------------------------- 3 3 I 0 0 0 CODE TABLE OR VALUE RANGE: 0-200 DESCRIPTION: Site index data collected for the Private Forest Land Grading soils program (PFLG). It is a designation of the quality of a forest site based on the height of of the tallest trees (dominant and co-dominant trees) in a stand at an arbitrarily chosen age. Usually the age chosen is 50 or 100 years. For example, if the average height attained by the tallest trees in a fully stocked stand at the age of 50 years is 75 feet, the site index is 75 feet. Westside site conditions are estimated by using an index age of 50 years, while eastside site conditions are estimated by using an index age of 100 years.--------------------------------------------------------------------SOILS-MAIN DATA: CODE TABLE NAME: SOIL.MAJ.SPEC.CODE ----------------------------------------------------------------------------- CODE MAP/REPORT MAP CODE DESCRIPTION LABEL SYMB --------- ------------ ---- -------------------------------------------------- AF ALPINE FIR 0 Subalpine fir DF DOUGLAS FIR 0 Douglas fir GF GRAND FIR 0 Grand fir GP GRAVEL PIT 0 Gravel pit LP LODGEPOLE PN 0 Lodgepole pine MFP MAR FOR PROD 0 Marginal forest productivity NA N/A 0 Not applicable NC NON-COMMERC 0 Non-commercial ND NO DATA 0 No data PP PONDEROSA PN 0 Ponderosa pine RA RED ALDER 0 Red alder WAT WATER 0 Water WH W HEMLOCK 0 Western hemlock WL W LARCH 0 Western larch WP W WHITE PINE 0 Western white pine ITEM: SITE.INDEX.SIDE TITLE: Indicates 100 yr or 50 yr soil site index FORMAT: INPUT OUTPUT DATA DECIMAL ARRAY ARRAY WIDTH WIDTH TYPE PLACES OCCUR. INDEX ------------------------------------------------- 1 1 C 0 0 0 CODE FILE OR VALUE RANGE: SITE.INDEX.SIDE.CODE DESCRIPTION: Code used to indicate whether 100 year or 50 year site index tables are used to calculate the site index of a soil type. Note that some site indexes for "eastside" soils are based on the 50 year index table. SITE.INDEX.SIDE Indicates 100 yr or 50 yr soil site index CODE FILE SITE.INDEX.SIDE.CODE IS NOT USED BY OTHER ITEMS CODE MAP/REPORT MAP CODE DESCRIPTION LABEL SYMB --------- ------------ ---- -------------------------------------------------- E 100 YR SITE 0 Soil site index based on 100 year table W 50 YR SITE 0 Soil site index based on 50 year table------------------------------------------------------------------

Fragile geologic features (FGFs) are elements of the landscape that are vulnerable to destruction during sufficiently strong earthquake ground shaking. As result, the observation of extant FGFs on the landscape may constrain the maximum intensity of past earthquake shaking. McPhillips and Scharer (2022, Survey of fragile geologic features and their quasi-static earthquake ground motion constraints, southern Oregon, Bulletin of the Seismological Society of America 112 (1)) demonstrated the potential to derive useful ground motion constraints from rock towers, such as sea stacks, in the Pacific Northwest region of the United States. The data set presented here extends the survey of McPhillips and Scharer (2022) along the length of the Oregon and Washington coasts and locally inland. Rock towers were remotely surveyed using freely available oblique aerial imagery (https://www.oregonshorezone.info/ and https://apps.ecology.wa.gov/shorephotoviewer/Map/ShorelinePhotoViewer, last accessed 16 September 2022) and lidar point clouds (without filtering by classification; https://portal.opentopography.org/datasets, last accessed 16 September 2022). A total of 78 new, and potentially fragile, features were identified. Geometrical parameters for these features were extracted from the lidar data using methods described in McPhillips and Scharer (2022). The quasi-static failure accelerations and first resonance modes of the features were calculated from the geometrical parameters using Equations Two and Three, respectively, from McPhillips and Scharer (2022). These equations also require for material properties of the features. For the purpose of this remote survey, we used average values from McPhillips and Scharer (2022): 2.4 grams per cubic centimeter, bulk density; 1.7 megapascals, tensile strength; and 8.0 gigapascals, Young's Modulus. The sea stacks in this survey are composed of rocks similar to southern Oregon, including marine sandstone, basalt, and basaltic melange (https://www.dnr.wa.gov/geologyportal and https://gis.dogami.oregon.gov/maps/geologicmap/, accessed 10 July 2022). Bulk density and tensile strength estimates were also measured in the field for sandstone at Toleak Point, in Washington State, in April 2022. There, tensile strength was measured in situ using a rebound hammer, using methods from McPhillips and Scharer (2022), and found to be approximately 1.5 megapascals. Bulk density was estimated by measuring the displacement (volume) and mass of cobbles on the beach and found to be approximately 2.3 grams per cubic centimeter. These values are interpreted to support the choice to use average values from McPhillips and Scharer (2022). Among the 78 surveyed features, 55 are likely old enough to have experienced at least two megathrust earthquakes. Following McPhillips and Scharer (2018), we estimated the ages of sea stacks as a function of distance from sea cliffs, in this case using a threshold of greater than 94 m. We also assumed that all inland features are sufficiently old. Among these 55 features, the average failure acceleration is 2.29 g and the 20th percentile value is 0.77 g. McPhillips and Scharer (2022) showed that the uncertainty for individual failure acceleration estimates is frequently greater than 50%, and similar uncertainties are expected for the data reported here. The average first resonance mode is 0.11 seconds. The fragility accelerations presented here may be suitable for comparison with spectral accelerations derived from earthquake ground motion simulations near the periods of the first resonance modes; these data are maximum constraints, and should not be taken to represent the most likely shaking intensities.