Metadata: Liquefaction Susceptibility (PWB Seismic Study 2016)

Liquefaction Susceptibility (PWB Seismic Study 2016)
Category
Feature Dataset Name STAND-ALONE
Item Name Liquefaction
Database Type
Originator
Bureau
Publication Date 02/13/2019
Abstract
Purpose
Supplemental Information
Last Dataset Update 12/11/2019 07:24
Last Source Update 08/13/2019 12:53
Maintenance/Update Frequency
Extent
Data Type
Shape Type Polygon
Feature Count 81
Horizontal Position Accuracy
Horizontal Position Accuracy Link
Progress
North Bounding Coordinate 768554.848753274
South Bounding Coordinate 592767.051837266
East Bounding Coordinate 7779463.65682414
West Bounding Coordinate 7571013.31266405
Theme Keyword(s)
Theme Keyword Thesaurus
Place Keyword(s) Portland, Multnomah County, Washington County, Clackamas County, Oregon
Place Keyword Thesaurus
Access Constraints Available for Public Use
Use Constraints These data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is".

The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy.
Source Dataset Type ENTERPRISE
Output Geodatabase WATER_SYSTEM.GDB
Distribution
Contact(s)
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File(s)
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Lineage
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Web Services

Service Description Feature Access Layer
BDS_Layers Map layers used to facilitate the permitting process Dynamic Liquefaction Hazard (PWB)
Hazard Natural Hazards in and around the City of Portland. Dynamic Liquefaction Hazard
Natural_Hazards Natural Hazards in and around the City of Portland. Dynamic Liquefaction
PPD_Flood_and_Natural_Resources Map layers used to facilitate the permitting process Dynamic Liquefaction Hazard (PWB)
PWB_Seismic_2016 Evaluating the potential for liquefaction and employing methods to mitigate its impacts were recognized as key factors for increasing earthquake resilience in the Oregon Resilience Plan (OSSPAC, 2013), as well as previous earthquake risk studies. Delineation of liquefaction-susceptible deposits in the PWB service area and estimating the magnitude of potential ground deformation is essential for the evaluation of potential damage from future large earthquakes in the Portland area. Mapping of liquefaction hazard allows for planning and mitigation prior to the next large earthquake and can be used for prioritizing emergency response following the earthquake. Dynamic Liquefaction
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Attribute Tables & Domains

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Liquefaction
Table Description
Table Jurisdiction
Column Sort Column Name Column Alias Column Type Column Size Domain Value(s) Column Description
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1 LiqExpl LiqExpl String 254
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1 GW_DEPTH GW_DEPTH String 50
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1 MAP_UNIT_L MAP_UNIT_L String 12
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1 MAP_UNIT_N MAP_UNIT_N String 100
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1 Concat Concat String 30
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1 LiqSuscept LiqSuscept String 255
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