FLOODPLAIN, ALLAMAKEE COUNTY, IOWA

Dataset Identification:

Resource Abstract:
The Floodplain Mapping 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, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).
Citation
Title FLOODPLAIN, ALLAMAKEE COUNTY, IOWA
publication  Date   2008-03-07
presentationForm  FEMA-DFIRM-FLOODPLAIN
cited responsible party - publisher
organisation Name  Federal Emergency Management Agency
Contact information
Address
, Washington, DC
cited responsible party - originator
organisation Name  Fuller, Mossbarger, Scott & May Engineers, Inc.
cited responsible party - originator
organisation Name  Federal Emergency Management Agency
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
URL: http://hazards.fema.gov
Topic Category:  hydrology,environment,inlandWaters
Keywords:
Theme keywords (theme):
Floodplain Mapping
Digital Flood Insurance Rate Map
DFIRM
FIRM
FEMA Flood Hazard Zone
DFIRM Database
Special Flood Hazard Area
CBRS
Coastal Barrier Resources System
Riverine Flooding
Coastal Flooding
NFIP
Base Flood Elevation
SFHA
Flood Insurance Rate Map
Floodway
thesaurus name >
Title FEMA NFIP Topic Category
Location keywords:
REGION VII
STATE IA
COUNTY ALLAMAKEE
COUNTY-FIPS 005
COMMUNITY AND INCORPORATED AREAS
FEMA-CID 19005C
thesaurus name >
Title None
purpose:
The objective of the Floodplain Mapping/Redelineation data submission is to archive the flood boundary and redelineation data for a study 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 updating/creating a DFIRM database.
Resource language:  eng; USA
Resource progress code:  completed
Resource Maintenance Information
maintenance or update frequency:  unknown
Constraints on resource usage:
Constraints
Use limitation statement:
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.
Constraints on resource usage:
Legal Constraints
use constraint:  otherRestrictions
Other constraints
Use Constraints: Acknowledgement of FEMA would be appreciated in products derived from these data. This digital data is produced for the purposes of updating/creating a DFIRM database.
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
Other constraints
Access Constraints: None
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -91.755059
eastBoundLongitude  -90.975075
northBoundLatitude  43.565109
southBoundLatitude  42.995265
Temporal Extent
2008-03-07
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Coverage description

Type of coverage content 
Cell value attribute description:  
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Coverage description

Type of coverage content 
Cell value attribute description:  
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Content information: feature catalog description

Included With Dataset  true
Feature Types  
Feature Types  
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Scope of quality information
scope level  dataset
Resource lineage description
source
source description  Source Contribution: Approximate Zone Floodplain for the Mississippi River is based on 4 ft. contour intervals. The Delineation is based on elevations from the U.S. Army Corp of Engineers Upper Mississippi River System Flow Frequency Study.Source Type online
source citation
Title Floodplain Mapping for Approximate Flood Hazard Areas
publication  Date   2008-03-07
cited responsible party - originator
organisation Name  Fuller, Mossbarger, Scott and May Engineers
Resource extent
Temporal Extent
2008-03-07
Completeness Commission
evaluation Method Description  Data contained in the Floodplain Mapping and Redelineation files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.
Completeness Omission
evaluation Method Description  Data contained in the Floodplain Mapping and Redelineation files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.
ConceptualConsistency
measure Description  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 the elevations on the FIRM will match the FIS profiles within one half of one foot.

Resource distribution information

Distributor
distributor contact - distributor
organisation Name  Federal Emergency Management Agency
Contact information
Telephone
Voice 1-877-336-2627
Address
500 C Street, S.W., Washington, District of Columbia, 20472 Country USA
electronic Mail Address miphelp@mapmodteam.com
Standard ordering process
fees Contact Distributor
Format
Format name ESRI Shapefile
Format version 
Digital Transfer Options
Linkage for online resource
URL: http://hazards.fema.gov

Metadata data stamp:  2003-06-12
Resource Maintenance Information
maintenance or update frequency:  annually
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata contact - pointOfContact
individual Name John Doe
organisation Name  Federal Emergency Management Agency
Contact information
Telephone
Voice 1-877-336-2627
Address
500 C Street, S.W., Washington, District of Columbia, 20472 Country USA
electronic Mail Address http://hazards.fema.gov
Metadata scope code  dataset
Metadata language  eng; USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  ab361ccf-861d-4c6e-8590-022109ab4bcf

Metadata record format is ISO19139-2 XML (MI_Metadata)