Plate 6. Landslide Susceptibility Map of Clatsop County, Oregon

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Plate 6. Landslide Susceptibility Map of Clatsop County, Oregon

Natural Hazard Risk Report for Clatsop County, Oregon G E O L O G Y F A N O D T N M I E N M E T R R A A L PLATE 6 P I E N Landslide Susceptibility Map of D D U N S O T G R E I R E S O Clatsop County, Oregon WASHINGTON 1937 Landslide Suscep�bility Landslide susceptibility is categorized as Low, Moderate, High, and Very High which describes the Low general level of susceptibility to landslide hazard. The Columbia River Moderate dataset is an aggregation of three primary sources: landslide inventory (SLIDO), generalized geology, and High slope. Very High Astoria ¤£101 30 Warrenton «¬104 ¤£ Skipanon River Svensen-Knappa Disclaimer: This product is for informational purposes and may not have been prepared for or be suitable for John Day River Westport legal, engineering, or surveying purposes. Users of this information should review or consult the primary Wallooskee River Ra�o of Building Value Exposed to Landslide data and information sources to ascertain the usability Landslide Suscep�bility of the information. This publication cannot substitute Low Moderate High Very High ¤£101 for site-speci�ic investigations by quali�ied Exposure percentage differ from the results shown in the publication. See thepractitioners. accompanying Site-speci�ic text report data for may more give details results on that the «¬202 0% 40% 80% limitations of the methods and data used to prepare Clatsop County this publication. (rural)* Y o Arch Cape* Gearhart u ng s Ri Svensen-Knappa* ver Seaside Lewis a This map is an overview map and not intended to nd Westport* C er provide details at the community scale. The GIS l iv «¬202 a R data that is published with the Clatsop County rk Natural Hazard Risk Assessment can be used to m R le Astoria iv a e h r e COUNTY COLUMBIA Cannon Beach inform regarding queries at the community scale. N Gearhart Necanicum River Seaside ¤£26 «¬103 Warrenton OREGON Cannon Beach *Unincorporated r £101 53 e Data Sources: ¤ «¬ Study Loca�on Map v Landslide susceptibility: Oregon Department of Geology, Burns and others (2016) i Roads: Oregon Department of Transportation Signed Routes (2013) e R Place names: U.S. Geological Survey Geographic Names Information System (2015) ork N hale m City limits: Oregon Department of Transportation (2014) Arch Cape F Basemap: U.S. Geological Survey and Oregon Lidar Consortium (2012) th r ¤£26 Hydrography: U.S. Geological Survey National Hydrography Dataset (2017) 0 3 6 Miles o Projection: NAD 1983 UTM Zone 10N N Software: Esri ArcMap 10, Adobe Illustrator CS6 0 4.5 9Kilometers TILAMOOK COUNTY Cartography by: Lowell H. Anthony, 2018 ¢ � � Oregon Department of Geology and Mineral Industries Open-File Report O-20-16 92.

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