Name: Liquefaction
Display Field: LiqExpl
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This dataset represents liquefaction susceptibility for the City of Portland Water Bureau service area and the conduit corridors leading from the Bull Run Watershed.
Geologic units susceptible to liquefaction have been attributed with a ranking, consisting of four ranked suceptibility classes ranging from Low to Very High. (A model was developed to account for five classes ranging from Very Low to Very High, however, no features fell within the Very Low classification.) Those with null "LiqExpl" values have been excluded from the analysis. Water bodies were removed. Complete methodology may be found in the draft report deliverable, Liquefaction and Lateral Spread Hazard, (InfraTerra, 2015), submitted to the Portland Water Bureau.
Copyright Text: InfraTerra Inc. and Cascade GIS & Consulting LLC.
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Extent:
XMin: -1.36886424754E7
YMin: 5664393.854999997
XMax: -1.3597327082899999E7
YMax: 5740371.916000001
Spatial Reference: 102100
(3857)
Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: LiqExpl
Field 2: N/A
Field 3: N/A
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UniqueValueInfos:
-
Value: Very High
Label: Very High
Description: N/A
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Value: High
Label: High
Description: N/A
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Value: Moderate
Label: Moderate
Description: N/A
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Value: Low
Label: Low
Description: N/A
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
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Shape
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LiqExpl
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Concat
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LiqSuscept
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