{"action":"create","ckan_id":null,"date_created":"Mon, 02 Feb 2026 23:07:34 GMT","date_finished":null,"harvest_job_id":"e29bd366-e6bc-4dcc-ade2-1b0ee8a23585","harvest_source_id":"4c62556f-0fa3-402d-90f6-6a46cd80a117","id":"d5bf3cae-0e9d-4055-99c6-9752455b2b74","identifier":"https://hazards.fema.gov/filedownload/metadata/R10/630752-PerformFloodplainMapping.xml","parent_identifier":null,"source_hash":"d6a6b55199006e6428fac14c084be4c91b0de2f323b12f2043bf081f07fee2af","source_raw":"\r\n\r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 20080605\r\n Floodplain Mapping Submission for Benton County, Oregon\r\n FEMA-DFIRM-Floodplain\r\n \r\n Washington, DC, USA\r\n Federal Emergency Management Agency\r\n \r\n http://hazards.fema.gov\r\n \r\n \r\n Federal Emergency Management Agency\r\n Unknown\r\n FEMA CASE 07-10-0015S\r\n \r\n Washington, DC\r\n Federal Emergency Management Agency\r\n \r\n \r\n \r\n \r\n \r\n \r\n The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent annual chance flood event, the 0.2-percent annual chance flood event, and areas of minimal flood risk. The Floodplain Mapping flood risk boundaries are derived from the engineering information Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).\r\n The objective of the Floodplain Mapping data submission is to archive the flood boundary data in a database such that it can be revised and used with minimum effort in future flood insurance studies or map revisions. This digital data is produced for the purposes of creating/updating a DFIRM database.\r\n \r\n \r\n \r\n \r\n 20080605\r\n \r\n \r\n MIP Submission Date\r\n \r\n \r\n In work\r\n Unknown\r\n \r\n \r\n \r\n -123.839502\r\n -123.056343\r\n 44.734268\r\n 44.266867\r\n \r\n \r\n \r\n \r\n ISO 19115 Topic Category\r\n hydrology\r\n environment\r\n inlandWaters\r\n \r\n \r\n FEMA NFIP Topic Category\r\n Floodplain Mapping\r\n Redelineation\r\n DFIRM\r\n FIRM\r\n FEMA Flood Hazard Zone\r\n DFIRM Database\r\n Special Flood Hazard Area\r\n Digital Flood Insurance Rate Map\r\n CBRS\r\n Coastal Barrier Resources System\r\n Riverine Flooding\r\n Coastal Flooding\r\n NFIP\r\n Base Flood Elevation\r\n SFHA\r\n Flood Insurance Rate Map\r\n Floodway\r\n \r\n \r\n Geographic Names Information System\r\n REGION 10\r\n STATE OR\r\n PROJECT BENTON COUNTY OR\r\n FEMA-CID 41003C\r\n COUNTY BENTON\r\n COUNTY-FIPS 003\r\n COMMUNITY CITY OF ALBANY\r\n FEMA-CID 410137\r\n COMMUNITY CITY OF CORVALLIS\r\n FEMA-CID 410009\r\n COMMUNITY CITY OF MONROE\r\n FEMA-CID 410010\r\n COMMUNITY CITY OF PHILOMATH\r\n FEMA-CID 410011\r\n COMMUNITY BENTON COUNTY\r\n FEMA-CID 410008\r\n \r\n \r\n None\r\n Acknowledgement of FEMA would be appreciated in products derived from these data. This digital data is produced for the purpose of creating/updating a DFIRM database.\r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n \r\n \r\n mailing address\r\n
500 C Street, S.W.
\r\n Washington\r\n District of Columbia\r\n 20472\r\n USA\r\n \r\n 1-877-336-2627\r\n miphelp@mapmodteam.com\r\n \r\n \r\n \r\n \r\n When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from elevations on the FIRM will match the FIS profiles within one half of one foot. Line work was checked against base map aerial photography and USGS 7.5-minute quadrangles. Topology modeled the interaction between the flood hazard line, flood hazard area, cross section, and base flood elevation feature classes.\r\n Data contained in the Floodplain Mapping files reflect the content of the source materials. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. Flood hazard areas are determined using statistical analyses of records of rifer flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis.\r\n \r\n \r\n \r\n \r\n Surdex Corporation\r\n 20050815\r\n Imagery\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 20050629\r\n 20050815\r\n \r\n \r\n ground condition\r\n \r\n BASE1\r\n Aerial photograph used to rectify panels and digitize flood hazard boundaries.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19860805\r\n Benton County, Oregon Unincorporated Areas\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19860805\r\n \r\n \r\n publication date\r\n \r\n FIS1\r\n Cross section information obtained from floodway data table.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19840702\r\n City of Corvallis, Benton County, Oregon\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19840702\r\n \r\n \r\n publication date\r\n \r\n FIS2\r\n Cross section information obtained from floodway data table.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19811215\r\n City of Philomath, Benton County, Oregon\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19811215\r\n \r\n \r\n publication date\r\n \r\n FIS3\r\n Cross section information obtained from floodway data table.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19811215\r\n City of Millersburg, Benton County, Oregon\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19811215\r\n \r\n \r\n publication date\r\n \r\n FIS4\r\n Cross section information obtained from floodway data table.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19990707\r\n City of Albany, Benton County, Oregon\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19990707\r\n \r\n \r\n publication date\r\n \r\n FIS5\r\n ) Cross section information obtained from floodway data table.\r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n 19860805\r\n Panel 4100080050C\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 19860805\r\n \r\n \r\n publication date\r\n \r\n FIRM1\r\n Features extracted from existing Flood Insurance Rate Map (FIRM)\r\n \r\n \r\n \r\n \r\n WEST Consultants, Inc.\r\n 20080605\r\n S_BFE\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 20080605\r\n \r\n \r\n publication date\r\n \r\n STUDY1\r\n BFEs updated based on vertical datum shift to NAVD88, digitized profile baseline, and effective FIS profiles.\r\n \r\n \r\n \r\n \r\n USGS\r\n 20080605\r\n S_FIRM_AN\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 20080605\r\n \r\n \r\n publication date\r\n \r\n BASE5\r\n DFIRM panel layout based on 7.5-Minute USGS Quadrangles.\r\n \r\n \r\n Floodplain Mapping and Redelineation data are compiled in conjunction with the hardcopy FIRM and the final FIS report. The specifics of the hydrologic and hydraulic analyses performed are detailed in the FIS report. The results of these studies are submitted in digital format to FEMA. These data and unrevised data from effective FIRMs are compiled onto the base map used for DFIRM publication and checked for accuracy and compliance with FEMA standards.\r\n 20080102\r\n \r\n \r\n This submission consists of both FIRM-based delineation and redelineation. Redelineation for the Benton County Unincorporated was based on 5-foot contours obtained from the county. A portion of the City of Corvallis was redelineated based on 2-foot contours obtained from the city. FIRM-based delineation was digitized at a scale of 1:3,000. Polygons were created from the flood hazard lines and topology was checked for flood hazard lines and flood hazard areas.\r\n 20080102\r\n \r\n \r\n This submission contains a cross section agreement table that checks floodway widths at cross sections and profile baseline lengths, updated FIS profiles, floodway data tables, vertical datum conversion spreadsheet, and mapping database.\r\n 20080605\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n Universal Transverse Mercator\r\n \r\n 10\r\n \r\n 0.999600\r\n -123.000000\r\n 0.000000\r\n 500000.000000\r\n 0.000000\r\n \r\n \r\n \r\n \r\n coordinate pair\r\n \r\n 0.000128\r\n 0.000128\r\n \r\n meters\r\n \r\n \r\n \r\n North American Datum of 1983\r\n Geodetic Reference System 80\r\n 6378137.000000\r\n 298.257222\r\n \r\n \r\n \r\n \r\n North American Vertical Datum of 1988\r\n 0.000001\r\n feet\r\n Explicit elevation coordinate included with horizontal coordinates\r\n \r\n \r\n \r\n \r\n \r\n \r\n S_BFE\r\n Location and attributes for base flood elevations lines shown on DFIRM\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm).\r\n \r\n \r\n \r\n \r\n S_FLD_HAZ_LN\r\n Location and attributes for boundaries of flood insurance rixk zones on the DFIRM\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm).\r\n \r\n \r\n \r\n \r\n S_XS\r\n Location and attributes for cross-section lines in the area covered by the DFIRM\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm).\r\n \r\n \r\n \r\n \r\n S_FLD_HAZ_AR\r\n Location and attributes for flood insurance risk zones shown on the DFIRM\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm).\r\n \r\n \r\n \r\n The Floodplain Mapping datasets contain both spatial and attribute information. These data together represent the current flood risk as identified by FEMA. The attribute tables include BFEs, cross-section locations, location and attributes for boundaries of flood insurance risk zones on the DFIRM, and other data related to the NFIP.\r\n Appendix L of FEMA Guidelines and Specifications for FEMA Flood Hazard Mapping Partners contains a detailed description of each attribute code and a reference to other relevant information.\r\n \r\n \r\n \r\n \r\n \r\n \r\n FEMA, Mapping Information Platform\r\n \r\n \r\n mailing address\r\n
500 C Street, S.W.
\r\n Washington\r\n District of Columbia\r\n 20472\r\n USA\r\n \r\n 1-877-336-2627\r\n miphelp@mapmodteam.com\r\n \r\n \r\n No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty.\r\n \r\n \r\n \r\n ESRI Shapefile\r\n \r\n \r\n \r\n \r\n \r\n http://hazards.fema.gov\r\n \r\n \r\n \r\n \r\n \r\n Contact Distributor\r\n \r\n \r\n \r\n 20080102\r\n \r\n \r\n \r\n Rebecca Yalcin\r\n WEST Consultants, Inc.\r\n \r\n GIS Specialist\r\n \r\n mailing address\r\n
2601 25th Street SE, Suite 450
\r\n Salem\r\n Oregon\r\n 97302-1286\r\n USA\r\n \r\n 503-485-5490\r\n ryalcin@westconsultants.com\r\n \r\n \r\n FGDC Content Standards for Digital Geospatial Metadata\r\n FGDC-STD-001-1998\r\n \r\n http://hazards.fema.gov\r\n http://www.epsg.org\r\n FEMA NFIP Metadata Content and Format Standard\r\n \r\n \r\n\r\n\r\n","source_transform":null,"status":"error"}