20200930 19413900 1.0 FALSE CoastalSetbackLimit_NEW 002 1.264 347053.023400 385297.229500 5479130.534500 5527362.678600 1 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_UTM_Zone_10N <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/2.9.0'><WKT>PROJCS["NAD_1983_UTM_Zone_10N",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["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-123.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26910]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>10000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26910</WKID><LatestWKID>26910</LatestWKID></ProjectedCoordinateSystem> 20260326 15361700 20260326 15361700 150000000 5000 FGDC Esri ArcGIS 12.9.7.32739 CoastalSetbackLimit 1 -125.128881 -124.582674 49.887658 49.445576 coastal setback shoreline setback coastal hazard sea level rise storm surge regulatory setback development setback coastal planning hazard mapping shoreline management Kerr Wood Leidal Associates Ltd. <DIV STYLE="text-align:Left;"><DIV><DIV>Coastal setbacks have been defined for the same sea level rise and storm scenario as depicted in the regulatory floodplain mapping: 1 m of SLR and 0.5% AEP water level and storm event.Setbacks are depicted as the greater of 15 m from the future estimated natural boundary of the sea with 1 m of SLR, or landward of the location where the natural ground elevation contour is equivalent to the floodplain limit with 1 m of SLR. A freeboard allowance of 0.6 m is included when estimating the floodplain limit with 1 m of SLR. For the special case of topographic plateaus, the floodplain limit has been established as the elevation of the seaward crest of the plateau plus freeboard, or the elevation of the shoreward extent of overland flooding plus freeboard, whichever is greater. The location of the future estimated natural boundary of the sea with 1 m of SLR is estimated as the elevation of the wave runup exceeded by 50% of the waves (R50% = R2%/2.2) for the 0.5% AEP storm event (Ausenco Sandwell, 2011).For areas with coastal bluffs that are steeper than 3 (Horizontal) to 1 (Vertical) and have a height in excess of 3 m, setbacks have been determined with the following criteria:<UL><LI>If the future estimated natural boundary is located at least 15 m seaward of the toe of the bluff, then no special bluff setback has been defined and the setback is defined as per above. </LI></UL><UL><LI>If the future estimated natural boundary is located 15m or less seaward of the toe of the bluff, then the setback from the future estimated natural boundary has been located at a horizontal distance of 3 times the height of the bluff, measured from 15 m landwards from the location of the future estimated natural boundary.</LI></UL></DIV></DIV></DIV> This layer is digital mapping produced by KWL for the Coastal Flood Mapping Project in 2021. It delineates coastal setbacks. The Coastal Setback polyline is based on the provincial guidelines (Flood Hazard Area Land Use Management Guidelines, FLNR, 2018). River and Tsunami Setbacks are not depicted. The setback mapping has been performed entirely as a desktop exercise based on the provincial guidelines for defining setbacks (FLNR, 2018). No field investigations have been conducted to confirm local site conditions or the adequacy of the setbacks depicted in the mapping; larger setbacks may be needed due to local erosion hazards. Terrestrial cliff and slope stability hazards have not been reviewed when preparing the setback mapping. Field investigations by qualified professionals should be conducted to confirm local conditions and setback requirements. Refer to KWL Technical Memorandum #5 (p. 35) for details. Please note, the original version of this layer is named CoastalSetbackLine_old. In February 2026, during the development of Bylaw 890, we discovered anomalies to this line when compared it with FloodLimit FC. KWL agreed and fixed the issues and sent us this revised FC which is the one being used in bylaw 890. Enterprise Geodatabase Feature Class 1.264 dataset EPSG 6.13(3.0.1) 0 Simple FALSE 0 TRUE FALSE CoastalSetbackLimit_NEW Feature Class 0 OBJECTID OBJECTID OID 4 10 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 8 0 0 Feature geometry. Esri Coordinates defining the features. 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