pds_carto_SCDFNA_densfringe

20160810 18024800 FALSE ENVIRONMENT__FEMA__densityfringe 002 1259113.731689 1351071.469689 312303.609770 479069.275253 1 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_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/3.0.0'><WKT>PROJCS["NAD_1983_StatePlane_Washington_North_FIPS_4601_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",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",2285]]</WKT><XOrigin>-117104300</XOrigin><YOrigin>-99539600</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>102748</WKID><LatestWKID>2285</LatestWKID></ProjectedCoordinateSystem> 20230320 14284400 20230320 14284400 1.0 ISO 19139 Metadata Implementation Specification 500000 5000 FGDC withheld REQUIRED: The name of an organization or individual that developed the data set. REQUIRED: The date when the data set is published or otherwise made available for release. pds_carto_SCDFNA_densfringe pds_carto_SCDFNA_densfringe vector digital data ESRI ArcCatalog 9.3.1.3500 en REQUIRED: A brief narrative summary of the data set. REQUIRED: A summary of the intentions with which the data set was developed. REQUIRED: The basis on which the time period of content information is determined. REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground. REQUIRED: The state of the data set. REQUIRED: The frequency with which changes and additions are made to the data set after the initial data set is completed. -122.399940 -122.011830 48.301714 47.845621 1259113.731619 1351071.469903 312303.610130 477065.587142 REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords. REQUIRED: Common-use word or phrase used to describe the subject of the data set. REQUIRED: Restrictions and legal prerequisites for accessing the data set. REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted. Feature Class Enterprise Geodatabase Feature Class Unknown Dataset copied. withheld 20071030 12025100 Esri ArcGIS > 10.8x; ArcGIS Pro > 2.9x ENVIRONMENT__SFHA__densityfringe vector digital data 2002-03-18T00:00:00 2005-11-01T00:00:00 2005-11-01T00:00:00 withheld external 75cce0f4829b3effa9b7b1afb0dfdf1206b87257 PDS GIS Administrator Snohomish County Planning and Development Services (PDS) PDS GIS Administrator 3000 Rockefeller Ave, MS 604 Everett WA 98201 PDSGISTeam@snoco.org US "https://gismaps.snoco.org/Html5Viewer/Index.html?viewer=pdsmapportal" {PDS Web Map Viewer} 425.388.3311 https://gismaps.snoco.org/snocogis/rest/services ArcGIS REST Services Snohomish County geo-datasets available as ArcGIS REST Services. Viewable via ArcGIS Online Map Viewer. If need be, Esri offers a free account (www.arcgis.com). PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator True PDS GIS Administrator -122.785892 -120.500977 48.660954 47.325115 1 -122.39994 -122.01183 48.301714 47.845621 1 The documentation for the initial density fringe study and mapping included the county’s interest in ease of maintaining and fostering the agricultural land use since proposed farm-related developments could follow a predesignated conveyance and obstruction amount without conducting a new hydrologic and hydraulic study for agricultural activities. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These terms are defined in Snohomish County Code:</SPAN></P><P><SPAN>SCC 30.91F.430 "Floodway" means the regular channel of a river, stream, or other watercourse, plus the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one foot.</SPAN></P><P><SPAN>SCC 30.91D.100 "Density fringe area" means that portion of the special flood hazard area of the lower Snohomish and Stillaguamish rivers in which floodway areas cannot reasonably be established and in which development is regulated by maximum development density criteria.</SPAN></P><P><SPAN>SCC 30.91F.440 "Floodway fringe" means that portion of a floodplain which is inundated by floodwaters but is not within a defined floodway. Floodway fringes serve as temporary storage areas for floodwaters.</SPAN></P><P><SPAN>The density fringe area is unique to Snohomish County and to only a few other counties in the United States. The density fringe concept was developed by the county with FEMA in lieu of designating the entire lower valleys of the Snohomish and Stillaguamish basins as floodway. Developing a traditional floodway in these areas was complicated due to the multiple channels, split flows, tidal influence and historic flood control structures. The documentation for the initial density fringe study and mapping included the county’s interest in ease of maintaining and fostering the agricultural land use since proposed farm-related developments could follow a predesignated conveyance and obstruction amount without conducting a new hydrologic and hydraulic study for agricultural activities.</SPAN></P><P><SPAN>The initial determination of the density fringe included an analysis based on flood water volumes over the entire density fringe area considering all of the existing lot coverage and obstructions present at that time, and identifying additional lot coverage and flow obstruction thresholds which would not result in a cumulative base flood level rise of more than one foot. These thresholds can be applied to new development without necessitating a full flood study:</SPAN></P><P><SPAN>SCC 30.65.250 Density fringe area: maximum allowable density The land area occupied by any use or development permitted by this chapter that will displace floodwaters shall not exceed two percent of the land area of that portion of the lot located in the density fringe area.</SPAN></P><P><SPAN>SCC 30.65.255 Density fringe area: maximum allowable obstruction The maximum width (sum of widths) of all new construction, substantial improvements or other development shall not exceed 15 percent of the length of a line drawn perpendicular to the known floodwater flow direction at the point where the development(s) is located. The length of said line shall not extend beyond the property boundary or the edge of the density fringe area, whichever is less.</SPAN></P><P><SPAN>These density fringe thresholds for new development are often referred to collectively as “the 2 and 15” requirements.</SPAN></P><P><SPAN>(Source: https://www.snohomishcountywa.gov/DocumentCenter/View/64614/Density-Fringe_Planning-Commission_staffreport_051019?bidId=)</SPAN></P></DIV></DIV></DIV> SCC 30.65.250, SCC 30.91D.100, PDS, FEMA Density Fringe Special Flood Hazard Areas (SFHA) FEMA <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>All maps, data, and information set forth herein (“Data”), are for illustrative purposes only and are not to be considered an official citation to, or representation of, the Snohomish County Code. Amendments and updates to the Data, together with other applicable County Code provisions, may apply which are not depicted herein. Snohomish County makes no representation or warranty concerning the content, accuracy, currency, completeness or quality of the Data contained herein and expressly disclaims any warranty of merchantability or fitness for any particular purpose. All persons accessing or otherwise using this Data assume all responsibility for use thereof and agree to hold Snohomish County harmless from and against any damages, loss, claim or liability arising out of any error, defect or omission contained within said Data. Washington State Law, Ch. 42.56 RCW, prohibits state and local agencies from providing access to lists of individuals intended for use for commercial purposes and, thus, no commercial use may be made of any Data comprising lists of individuals contained herein.</SPAN></P></DIV></DIV></DIV> external 75cce0f4829b3effa9b7b1afb0dfdf1206b87257 PDS GIS Administrator Snohomish County Planning and Development Services (PDS) PDS GIS Administrator 3000 Rockefeller Ave, MS 604 Everett WA 98201 PDSGISTeam@snoco.org US "https://gismaps.snoco.org/Html5Viewer/Index.html?viewer=pdsmapportal" {PDS Web Map Viewer} 425.388.3311 https://gismaps.snoco.org/snocogis/rest/services ArcGIS REST Services Snohomish County geo-datasets available as ArcGIS REST Services. Viewable via ArcGIS Online Map Viewer. If need be, Esri offers a free account (www.arcgis.com). PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator True PDS GIS Administrator -122.785892 -120.500977 48.660954 47.325115 1 en FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time REQUIRED: The person responsible for the metadata information. REQUIRED: The organization responsible for the metadata information. REQUIRED: The mailing and/or physical address for the organization or individual. REQUIRED: The city of the address. REQUIRED: The state or province of the address. REQUIRED: The ZIP or other postal code of the address. REQUIRED: The telephone number by which individuals can speak to the organization or individual. 20100426 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset Downloadable Data Vector Simple FALSE 0 TRUE FALSE GCS_North_American_1983 NAD_1983_StatePlane_Washington_North_FIPS_4601_Feet coordinate pair survey feet 0.001000 0.001000 North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Explicit elevation coordinate included with horizontal coordinates 1.000000 NAD_1983_StatePlane_Washington_North_FIPS_4601_Feet EPSG 5.3(9.0.0) 0 ENVIRONMENT__FEMA__densityfringe Feature Class 0 Per layer. PDS OBJECTID OBJECTID OID 4 10 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. LABEL LABEL String 40 0 0 PDS Labeled as "Density Fringe Area". See field specs. SHAPE SHAPE Geometry 8 0 0 Feature geometry. ESRI Coordinates defining the features. SHAPE.STArea() SHAPE.STArea() Double 0 0 0 SHAPE.STLength() SHAPE.STLength() Double 0 0 0 20230320 3-18-02, PDS GIS Team, R. Mueller --> Revised June 2002, July 2003, May 2004, May 2005, and Nov 2005. This coverage was original compiled and digitized from the Snohomish County 1:48,000 Scale Mylar original in the Planning and Development Services GIS Section (Cartography). On 3-15-2002 the SW segment of the Density Fringe from Lords Hill to the Everett City Limits was adjusted and fine tuned using 1:24,000 scale USGS Quadrangle maps. This was done in support of the Marshland Conveyance Project at the request of Gary Reiersgard see the arcview project in the following directory: Source: DensityFringe Coverage Info.doc Digitized using the original 1:12,000 scale mylar Density Fringe Maps. [ft_us] 20 external 75cce0f4829b3effa9b7b1afb0dfdf1206b87257 PDS GIS Administrator Snohomish County Planning and Development Services (PDS) PDS GIS Administrator 3000 Rockefeller Ave, MS 604 Everett WA 98201 PDSGISTeam@snoco.org US "https://gismaps.snoco.org/Html5Viewer/Index.html?viewer=pdsmapportal" {PDS Web Map Viewer} 425.388.3311 https://gismaps.snoco.org/snocogis/rest/services ArcGIS REST Services Snohomish County geo-datasets available as ArcGIS REST Services. Viewable via ArcGIS Online Map Viewer. If need be, Esri offers a free account (www.arcgis.com). PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator PDS GIS Data Administrator True PDS GIS Administrator <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>All maps, data, and information set forth herein (“Data”), are for illustrative purposes only and are not to be considered an official citation to, or representation of, the Snohomish County Code. Amendments and updates to the Data, together with other applicable County Code provisions, may apply which are not depicted herein. Snohomish County makes no representation or warranty concerning the content, accuracy, currency, completeness or quality of the Data contained herein and expressly disclaims any warranty of merchantability or fitness for any particular purpose. All persons accessing or otherwise using this Data assume all responsibility for use thereof and agree to hold Snohomish County harmless from and against any damages, loss, claim or liability arising out of any error, defect or omission contained within said Data. Washington State Law, Ch. 42.56 RCW, prohibits state and local agencies from providing access to lists of individuals intended for use for commercial purposes and, thus, no commercial use may be made of any Data comprising lists of individuals contained herein.</SPAN></P></DIV></DIV></DIV>