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Floodplain Polk County, WI 2021

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
Email
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
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