FIS STUDY FOR Pacific COUNTY, WASHINGTON, USA

Metadata Updated: November 14, 2017

For this revision, STARR conducted over 38 miles of revised Coastal Hazard Analysis that included computing wave runup. STARR utilized 79 transects in this study. No new detailed riverine studies were conducted as part of this countywide FIS. For riverine areas, floodplain boundaries were remapped as part of the countywide update to reflect more recent or more detailed topographic and base map data for the county. The floodplain mapping updates consisted of a mixture of redelineation and rectification (refinement) of existing flood boundaries based on the best topographic data and aerial photography available at the time of the study. Redelineation was limited to areas were new, quality topographic data was available and Base Flood Elevations were previously defined. Redelineation was completed on the detailed study areas of the Naselle River, Salmon Creek and South Fork Naselle River. The detailed study reaches along Ward, Wilson and Whitcomb Creeks near the City of Raymond and the Willapa River near Lebam are not covered by new topographic data and was converted to digital format by digitizing the effective FIRMs and refined by making small adjustments to fit the floodplains to new aerial photography. Approximately 4.3 stream miles, including portions of Naselle River and Salmon Creek were studied with base level methods (Zone A). The boundary of the 1-percent-annualchance flood for the South Fork Naselle River near its confluence with Cement Creek was refined by making adjustments to fit the floodplains to new aerial photography and the new topographic data. Those approximate method reaches not covered by new topographic data were converted to digital format by digitizing the effective FIRMs and refined by making small adjustments to fit the floodplains to new aerial photography to ensure that they overlay the water course they represent. These areas include portions of Salmon Creek and Willapa River.

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Dates

Metadata Date August 7, 2013
Metadata Created Date November 14, 2017
Metadata Updated Date November 14, 2017
Reference Date(s) August 7, 2013 (publication)
Frequency Of Update unknown

Metadata Source

Harvested from FEMA-R10

Additional Metadata

Resource Type Dataset
Metadata Date August 7, 2013
Metadata Created Date November 14, 2017
Metadata Updated Date November 14, 2017
Reference Date(s) August 7, 2013 (publication)
Responsible Party Federal Emergency Management Agency (Point of Contact)
Contact Email
Access 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., Access Constraints: None
Bbox East Long -122.16
Bbox North Lat 47.33
Bbox South Lat 45.7
Bbox West Long -125.28
Coupled Resource
Frequency Of Update unknown
Guid
Harvest Object Id 7f232717-945b-4dda-8cd5-3688a5ac555a
Harvest Source Id fd47c02e-3ef2-42fb-b4e5-40560b136a08
Harvest Source Title FEMA-R10
Licence 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.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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