Floodplain Mapping for Redelineation Submission for Franklin County, IA
Dataset Identification:
Resource Abstract:
Recent developments in digital terrain and geospatial database management technology make it possible to protect this investment
for existing and future projects to a much greater extent than was possible in the past. The Floodplain Mapping/Redelineation
study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 0.2-percent-annual-
chance flood event, and areas of minimal flood risk. The Floodplain Mapping/Redelineation flood risk boundaries are derived
from the engineering information in the Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs),
flood hazard analyses performed in support of the FISs and FIRMs, Flood Boundary and Floodway Maps, and new mapping data,
where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).
Citation
Title Floodplain Mapping for Redelineation Submission for Franklin County, IA
publication Date
2011-09-20
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
STARR
cited responsible party
-
originator
organisation Name
Federal Emergency Management Agency
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:
underDevelopment
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.
source description
Source Contribution: BFE is from Township of City of Hampton Franklin County Iowa FIS effective May 1979 and delineated using
the Iowa statewide LiDAR project data.Source Type Shapefile
source citation
Title Redelineation
publication Date
2011-09-20
presentationForm
mapDigital
other Citation Details
NONE
cited responsible party
-
publisher
organisation Name
STARR
Contact information
Address
, Beltsville, MD
cited responsible party
-
originator
organisation Name
STARR
Resource extent
Temporal Extent
2011-09-16
source
source description
Source Contribution: Digital Capture based on effective data from Franklin County IA. Effective data May 22 1979.Source Type
Shapefile
source citation
Title Digital Conversion
publication Date
2011-09-20
presentationForm
mapDigital
other Citation Details
NONE
cited responsible party
-
publisher
organisation Name
STARR
Contact information
Address
, Beltsville, MD
cited responsible party
-
originator
organisation Name
STARR
Resource extent
Temporal Extent
2011-09-16
source
source description
Source Contribution: Digital Capture based on effective data from the City of Sheffield IA. Effective data June 4 1976.Source
Type Shapefile
source citation
Title Digital Conversion
publication Date
2011-09-20
presentationForm
mapDigital
other Citation Details
NONE
cited responsible party
-
publisher
organisation Name
STARR
Contact information
Address
, Beltsville, MD
cited responsible party
-
originator
organisation Name
STARR
Resource extent
Temporal Extent
2011-09-16
source
source description
Source Contribution: Digital Capture based on effective data from the City of Lattimer IA. Effective data March 26 1976.Source
Type Shapefile
source citation
Title Digital Conversion
publication Date
2011-09-20
presentationForm
mapDigital
other Citation Details
NONE
cited responsible party
-
publisher
organisation Name
STARR
Contact information
Address
, Beltsville, MD
cited responsible party
-
originator
organisation Name
STARR
Resource extent
Temporal Extent
2011-09-16
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
Computed water surface elevations and topographic data are used to delineate flood hazard boundaries. Base Flood Elevations
(BFEs) on the FIRMs and in floodway data tables agree with the flood profiles in the FIS
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 Rick Nusz
organisation Name
FEMA
position Name Project Manager
Contact information
Telephone
Voice 816-283-7061
Address
9221 Ward Parkway, Suite 300, Kansas City, MO, 61114
Country USA