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Hawaii Countywide Revision with Coastal Hurricane Study

Study Type: Revised Countywide DFIRM
County: Hawaii
State: Hawaii
Description:
The scope of the Hawaii County Countywide Revision effort includes processing the NRCS 2010 imagery dataset to be used as the base layer on revised preliminary maps, performing a quality review of the County’s georectified FIRM panels, digitization of riverine boundaries to the georectifeid FIRM panels, redelineation of riverine and coastal boundaries within the USACE LiDAR footprint of Hilo, incorporation of the County’s funded North Kona, Puna and Palai Stream Studies and a three-part training series on coastal analysis and mapping methodologies.  This resultant effort will produce revised preliminary maps for the 114 printed panels.

Preliminary FIRM panels were released on August 14, 2015. The maps are available for viewing on FEMA's preliminary website located here , or on the State of Hawaii's Flood Hazard Assessment Tool (FHAT) located here. The preliminary meeting was held in Hilo on August 17th and the first open house meeting was held directly afterwards. Residents and property owners were encouraged to attend one of two Informational Public Meetings on August 17th and 18th.  Personnel from the FEMA, the State of Hawaii’s Department of Land and Natural Resources, and Hawaii County were available to answer questions, concerns, and provide information on the mapping timeline and appeals process.


Levee-Related Information

Study Type: Levee Status
County: Hawaii
State: Hawaii
Description:
The 2-year Provisionally Accredited Levee (PAL) period for the levees for Hawaii Countywide Digital Flood Insurance Rate Map (DFIRM) expired on February 1, 2010.


Honolulu County Physical Map Revision

Study Type: Physical Map Revision
County: Honolulu
State: Hawaii
Description:
Currently BakerAECOM is working on a Physical Map Revision (PMR) to perform new detail study along Keaahala and Waialae-nui Rivers and perform Independent QA/QC of the Kaiwainui Study and Keaaulu Gulch/Malaekahana Studies performed by the USACE.   BakerAECOM will also study various flooding sources to replace the effective Zone A flood zones with Zone AE (total 5.0 miles of study).  These studies will affect 12 panels. This project has gone effective as of 11.5.2014.


Kauai Provisionally Accredited Levee

Study Type: Physical Map Revision
County: Kauai
State: Hawaii
Description:
Currently BakerAECOM is working a Physical Map Revision (PMR) for Kauai County. This mapping project was initiated as a result of the Provisionally Accredited Levee (PAL) agreement expiration of levee systems along Hanapepe and Waimea Rivers. Evaluation reports prepared by the U.S. Army Corp of Engineers (USACE) dated March 2010 stated that Hanapepe and Waimea River levees do not meet the minimum freeboard criteria for certification. As a result, FEMA initiated a mapping project to show the areas landward of these levees in a Special Flood Hazard Area (SFHA), the area subject to inundation by the base flood. Additionally, BakerAECOM will incorporate the Molaa Study performed by the USACE.


Levee-Related Information

Study Type: Levee Status
County: Kauai
State: Hawaii
Description:
The 2-year Provisionally Accredited Levee (PAL) period for the levees designated as PALs on the November 25, 2010 Kauai County countywide Digital Flood Insurance Rate Map expired on January 31, 2010.


Pacific Ocean Physical Map Revision

Study Type: Physical Map Revision
County: Maui
State: Hawaii
Description:
A PMR updating 83 panels to incorporate the Hawaiian Islands Hurricane study, the Lanai Tsunami study and the Iao Stream study. The scope includes an independent QC on the Iao Stream study but not an Independent QC on the Lanai Tsunami study as this was approved by Ray Lenaburg and will be incorporated as-is. One levee segment on Kaunakaki has a PAL expiring 2/1/10 that will be addressed.


Discovery Project

Study Type: Discovery
County: Honolulu
State: Hawaii
Description:

Discovery

The Discovery process is the first step in determining whether a Risk MAP project is needed within the City and County of Honolulu. The goal of the Discovery process is for FEMA to work more closely with communities and stakeholders to better understand the local flood risk and mitigation efforts and to encourage watershed-wide discussions about increasing resilience to flooding. The information exchanged between FEMA and the community during Discovery will improve our understanding of your flood hazard mapping, flood risk, mitigation planning, and communication needs.

Honolulu Flood Risk Products

Development of flood risk products was funded based on the outcome of the Discovery meeting and the process described above, as well as the results of the Honolulu PMR project​.  One of the products funded for the City and County of Honolulu is the Risk Assessment map for the Kawainui area to provide loss estimates for floods, earthquakes, and hurricane winds.  The second product is the Changes Since Last Firm (CSLF) map, which utilizes the results of the Honolulu PMR project to illustrate where changes to flood risk may have occurred since the last FIRM was published.  These datasets will be used to create the Flood Risk Report, and will also be used to populate the Flood Risk Map and Flood Risk Database.



Guam Discovery

Study Type: Discovery
County: Guam
State: U.S. Territory
Description:

​The Discovery process is the first step in determining whether a Risk MAP project is needed for the Island of Guam. The goal of the Discovery Process is for FEMA to work more closely with communities and stakeholders to better understand the local flood risk and mitigation efforts, and to encourage watershed-wide discussions about increasing resilience to flooding. The information exchanged between FEMA and the community during Discovery will improve our understanding of your flood hazard mapping, flood risk, mitigation planning, and communication needs.



Hawaii County Discovery

Study Type: Discovery
County: Hawaii County
State: Hawaii
Description:
The Discovery processs is the first step in determining whether a RiskMAP project is needed within the Hawaii Watershed.  The goal of the Discovery process is for FEMA to work more closely with communities and stakeholders to better understand the local flood risk and mitigation efforts and to encourage watershed-wide discussions about increasing resilience to flooding. The information exchanged between FEMA and the community during Discovery will improve our understanding of your flood hazard mapping, flood risk, mitigation planning, and communication needs.

The Discovery Meeting for the Hawaii Watershed was held on the February 13, 2013.


Kaunakakai Stream Levee Analysis and Physical Map Revision

Study Type: Digital Flood Insurance Rate Map
County: Maui
State: Hawaii
Description:
The scope of this study is to revise the FIRM and FIS for Maui County to address portions of the previous study that were put on-hold until FEMA finalized its approach to identify the flood hazard in areas behind levees that cannot be recognized as providing protection from the 1-percent annual chance flood.  In a letter dated July 26, 2011, FEMA committed to initiating a subsequent map revision to incorporate the hurricane flood study for Molokai and detailed riverine studies along Iao and Kaunakakai Streams into Maui County’s FIRM and FIS report.  This map revision will also combine re-study efforts underway for Waikapu Stream, Kihei Gulch 1, Keokea Gulch, and Waimahaihai Gulch into one map revision.

The new engineering analysis to identify the flood hazards associated with the levee systems along Kaunakakai Stream will be a result of a pilot analysis and mapping project. This project will follow the levee analysis and mapping procedures for non-accredited1 levees released by FEMA in July 2013.

The scope of study for Maui County includes analysis of Keokea Gulch and Waimahaihai Gulch in the Kihei area, for approximately 2 miles of study.  The scope also includes implementing the LAMP guidance for the non-accredited levees along Kaunakakai Stream.  
 
FEMA distributed the preliminary FIRM panels, Flood Insurance Study (FIS) report, and GIS database for Maui County and incorporated areas impacted by the map revision on August 8, 2014.   

The Community Consultation Officer (CCO) meeting to review the preliminary FIRM panels with community officials was conducted on Monday, August 11, 2014.  Meeting materials will be provided below.

In an effort to assist Maui County and incorporated areas in circulating the preliminary data, digital copies of the revised FIRM panels, FIS report, and Digital FIRM database are posted on the following website: www.fema.gov/preliminaryfloodhazarddata .  The preliminary database, Changes Since Last FIRM maps and KMZ files are posted under the Project Documents folder located below.

FEMA’s Appeal process and the Summary of Map Actions were discussed at the CCO meeting on August 11.  Please also refer to the following hyperlinked resources in FEMA’s library for additional details.  
•       Appeal Process Fact Sheet
•       Understanding FEMA’s Summary of Map Actions and Revalidation Letter

The proposed Flood Hazard Determinations were published in the Federal Register on September 10, 2014. Following the publication in the Federal Register, the Flood Hazard Determinations were published twice in the legal ad section of the Maui News and Molokai Dispatch on October 1 and October 8, 2014. A 90-day appeal period began on October 8, 2014, the date of the second publication in the Maui News and Molokai Dispatch . The appeal period ended on January 6, 2015.

The Letter of Final Determination was issued May 4, 2015. As of November 4, 2015, the effective FIRM and FIS are available on FEMA's Map Service.

Flooding is the most common disaster in the United States. Homeowners, renters and business owners are encouraged to look at the Preliminary Flood Insurance Rate Maps to become familiar with flood risks in their community. These flood maps can help individuals and businesses make informed decisions about flood insurance options and flood protection measures.

For more information about flood insurance or to find a local agent, visit www.floodsmart.gov. For questions about flood maps, visit http://msc.fema.gov , call 877-FEMA-MAP ( 877-336-2627 ) or email FEMAMapSpecialist@riskmapcds.com .



 

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