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Floodplain Polk County, WI 2021
- Identification Information
- Spatial Reference Information
- Data Quality Information
- Distribution Information
- Spatial Representation Information
- Metadata Reference Information
Identification Information
- Citation
- Title
- Floodplain Polk County, WI 2021
- Originator
- Polk County
- Publication Date
- 2021-10-13
- Edition
- 2021
- Geospatial Data Presentation Form
- mapDigital
- Abstract
- This data layer represents the floodplain for Polk County, Wisconsin in 2021.[The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. 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 DFIRM Database is derived from 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, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which ''... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards,'' Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP.The DFIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital FIS database that serves to archive the information collected during the FIS.]
- Purpose
- This data is intended for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. [Digital Flood Insurance Rate Map (Federal Emergency Management Agency) Community Name: POLK COUNTY UNINC INC Contents 55095C DFIRM Created on: 4 Apr 2011 From: FEMA Map Service Center (MSC) Flood Map Store https://msc.fema.gov/portal/home Data included represents Final Flood Insurance Rate Map (FIRM) data that has been published as effective FIRM or DFIRM information. The data are the official and legal representation of the effective flood zones.]
- Supplemental Information
- This is an archived copy of the data held at UW-Madison. For access to the most current data available, please visit: https://www.co.polk.wi.us/landinfogisdataportal
- Temporal Extent
- Time Instant
- 2021-01-01T00:00:00
- Bounding Box
- West
- -92.889639
- East
- -92.154341
- North
- 45.728466
- South
- 45.208593
- ISO Topic Category
- boundaries
- inlandWaters
- Place Keyword
- Polk County
-
Wisconsin
- Place Keyword Thesaurus
- GNS
- Theme Keyword
-
Floodplain management
- Theme Keyword Thesaurus
- LCSH
- Resource Constraints
- Use Limitation
- [The hardcopy FIRM and DFIRM and the accompanying FISs are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78). These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. However the hardcopy flood maps and flood profiles are the authoritative documents for the NFIP. Acknowledgement of FEMA would be appreciated in products derived from these data.]
- Legal Constraints
- Use Limitation
- Although this data is being distributed by the University of Wisconsin-Madison, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials.
- Status
- completed
- Maintenance and Update Frequency
- unknown
- Language
- eng
- Credit
- Polk County [Federal Emergency Management Agency (FEMA)]
- Point of Contact
- Contact
- Polk County
- Delivery Point
- 100 Polk County Plaza Ste 130
- City
- Balsam Lake
- Administrative Area
- WI
- Postal Code
- 54810-9071
- Country
- US
- Phone
- 715-485-9170
Spatial Reference Information
- Reference System Identifier
- Code
- 103448
- Code Space
- EPSG
- Version
- 9.1(10.7.0)
Data Quality Information
- Lineage
- Process Step
- Description
- Provided access to archived data at UW-Madison.
- Process Date
- 2021-10-13T00:00:00
Distribution Information
- Format Name
- File Geodatabase Feature Class
- Format Version
- 10.1
- Distributor
- University of Wisconsin-Madison
- Distributor
- Polk County
- Online Access
- https://gisdata.wisc.edu/public/Polk_Floodplain_2021.zip
- Protocol
- WWW:DOWNLOAD-1.0-http--download
- Name
- GeoData@Wisconsin
- Function
- download
Spatial Representation Information
- Vector
- Topology Level
- geometryOnly
- Vector Object Type
- composite
- Vector Object Count
- 115
Metadata Reference Information
- Hierarchy Level
- dataset
- Metadata File Identifier
- D829DAB6-E03B-4ADF-A48F-35EDC2BE966F
- Metadata Point of Contact
- Name
- Arthur H. Robinson Map Library
- Position Name
- Metadata Technician
- Delivery Point
- 550 N. Park Street
- City
- Madison
- Administrative Area
- WI
- Postal Code
- 53706
- Country
- US
- askmap@library.wisc.edu
- Phone
- (608) 262-1471
- Metadata Date Stamp
- 2021-10-20
- Metadata Standard Name
- ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata Standard Version
- 2007
- Character Set
- utf8