Oregon Department of Geology and Mineral Industries 2018 vector digital data Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-18-02 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org Oregon Department of Geology and Mineral Industries 2018 file geodatabase Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-18-02 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org/ Locations of electrical transmission towers and poles in Clackamas, Multnomah, and Washington Counties, Oregon, and amount of possible ground failure at each pole/tower location that may occur due to an earthquake. Limited to poles and towers between electrical power generation and the distribution substations. Does not include local distribution networks. Provide spatial locations of towers/poles to quantify potential impact of a natural hazard on the electrical grid. For this project, impact of ground failure from liquefaction and earthquake-induced landslides. Does not include buried transmission lines. 2018 Complete None planned -123.350332 -121.706060 45.808104 44.858488 ISO 19115 Topic Category geoscientificinformation structure utilitiesCommunications Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Electricity Energy  Transmission  power Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Clackamas Multnomah Washington Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Above ground utilities Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus None REPORT DATA: This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from the results shown in the publication. See the accompanying text report for more details on the limitations of the methods and data used to prepare this publication. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org John Bauer Oregon Department of Geology and Mineral Industries Geohazards Analyst jpeg image (.jpg) This work was funded on behalf of Regional Disaster Preparedness Organization with an Urban Area Security Initiative grant for the Portland Metropolitan Region. Unclassified All attributes fully populated. The Pole_Ref "PGE, 2016" were identified based on data made available by the local utility, but some of these may have overlapped with already-digitized structures. The amount of ground failure and probability are based on zonal statistics in a 10-meter circular buffer around the point, but because some of the buffers had significant overlap with each other, some of the zonal statistics may be erroneously under-valued for tightly-spaced towers/poles. In such situations, the proximal poles/towers were attributed with ground failure/probability correctly. Ground failure and probability accuracy assessments themselves are discussed within the metadata accompanying those raster datasets. At relatively low, but non-zero ground deformations, the probability of ground failure can be zero. This is due to an programming implementation detail when converting the Hazus ground deformation equations into a standalone model. The effect is minor and inconsequential; at most, a 6 cm ground failure may have zero probability associated with it. All records fully populated with data source and ground failure information. Not all poles or towers are represented. Local utility poles/towers in North Portland were not made available for this project, and poles were difficult to digitize from lidar imagery. Some redundancy may be present, with multiple digitizers having overlapping digitization coverage areas and identifying the same structure. Most towers/poles were imported 'as-is' from the local utility. Visual inspection suggested horizontal positional accuracy error may be as much as 50 feet. Multi-footed transmission towers were generalized to a single point; each leg of the tower may be offset from the point by 50 to 100 feet. Towers/poles digitized to lidar-derived highest hit were done at a scale of 1:2000. Oregon Department of Geology and Mineral Industries 2011 vector digital data Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-11-16 Portland, Oregon Oregon Department of Geology and Mineral Industries 2011 Oregon Department of Geology and Mineral Industries 2013 vector digital data Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-13-08 Portland, Oregon Oregon Department of Geology and Mineral Industries 2013 Department of Homeland Security 2017 vector digital data Homeland Infrastructure Foundation-Level Data (HIFLD) Washington, D.C. Department of Homeland Security https://hifld-dhs-gii.opendata.arcgis.com/datasets?q=transmission unspecified Portland General Electric 2016 vector digital data unpublished data made available by request. Permission was granted by PGE to publish location information and attribution of data source. DOGAMI assembled pole/tower location information from unpublished internal work and two previously published reports (Burns and others, 2011; 2013) DOGAMI obtained pole/tower information from a local utility, checked for redundancy with existing data, and appended new information to the dataset DOGAMI digitized poles/towers using as a backdrop transmission line corridors obtained from Homeland Infrastructure Foundation Level Data (Electric Power Transmission Lines), and interpretation of lidar-derived highest-hit hillshade of most recent lidar available. To populate the ground failure and probability quantities, DOGAMI first buffered all points by 10 meters, then sampled the appropriate earthquake scenario data published with this Open File Report, using the Esri Zonal Statistics as Table tool. For each earthquake scenario, DOGAMI computed the maximum of the landslide and liquefaction permanent ground deformation and probability of ground failure data. See report and metadata for background on derivation of permanent ground deformation and ground failure probability data. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Vector Entity point 18098 NAD 1983 HARN StatePlane Oregon North FIPS 3601 Feet Intl 44.33333333333334 46.0 -120.5 43.66666666666666 8202099.737532808 0.0 coordinate pair 0.00032808398950131233 0.00032808398950131233 foot D North American 1983 HARN GRS 1980 6378137.0 298.257222101 PoleID A unique identifier for each pole/tower structure Pole_Ref Data source for tower/pole. DOGAMI, 2017 is a synthesis of the two existing data sources published by DOGAMI, non-published data on power/pole location within DOGAMI, and DOGAMI digitization done for this project CSZ_wet_PGD Amount of ground failure, in cm, in a Cascadia Subduction Zone M 9.0 scenario, wet (saturated) soil conditions. Amount is maximum of ground failure from liquefaction or earthquake-induced landslide. CSZ_wet_Prob Probability of ground failure, in percent, in a Cascadia Subduction Zone M 9.0 scenario, wet (saturated) soil conditions. Amount is maximum probability from liquefaction or earthquake-induced landslide. CSZ_dry_PGD Amount of ground failure, in cm, in a Cascadia Subduction Zone M 9.0 scenario, dry soil conditions. Amount is maximum of ground failure from liquefaction or earthquake-induced landslide. CSZ_dry_Prob Probability of ground failure, in percent, in a Cascadia Subduction Zone M 9.0 scenario, dry soil conditions. Amount is maximum probability from liquefaction or earthquake-induced landslide. PHF_wet_PGD Amount of ground failure, in cm, in a Portland Hills Fault M 6.8 scenario, wet (saturated) soil conditions. Amount is maximum of ground failure from liquefaction or earthquake-induced landslide. PHF_wet_Prob Probability of ground failure, in percent, in a Portland Hills Fault M 6.8 scenario, wet (saturated) soil conditions. Amount is maximum probability from liquefaction or earthquake-induced landslide. PHF_dry_PGD Amount of ground failure, in cm, in a Portland Hills Fault M 6.8 scenario, dry soil conditions. Amount is maximum of ground failure from liquefaction or earthquake-induced landslide. PHF_dry_Prob Probability of ground failure, in percent in a Portland Hills Fault M 6.8 scenario, dry soil conditions. Amount is maximum probability from liquefaction or earthquake-induced landslide. Electric tower/pole schema constructed ex novo. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries, no warranty expressed or implied is made by DOGAMI regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. "GDB" Esri File Geodatabase 2018 Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Oregon Department of Geology and Mineral Industries Metadata Standard 1.4 None None None None None