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Chapter 10:Hazard Analysis—Floods
<br /> 10.4.1.1 County of'Hawaii Flood Studies
<br /> The County is currently doing flood studies (map updates) in the following areas: Puna, Hilo,
<br /> North and South Kona. There are several privately funded flood studies ongoing in the
<br /> Kona, Hilo and Waimea. See the County of Hawaii Flood Studies in Table 10-2.
<br /> Table 10-2. County of Hawaii Flood Study list
<br /> County of Hawaii Flood Studies
<br /> Prepared on October 12,2009
<br /> Estimated
<br /> FEMA Case FEMA Panel Completion
<br /> Identifier TMK No. Flooding Source No. Engineer Start Date Status/Remarks Date
<br /> DHHL Lalamllo Housing,Phase 5-5-001:077 09-09-2407R Keanuimano& 0164 D Anson Murayama, 7/17/00 91 Withdrew CLOMR Jan-10
<br /> 2 Waikoloa Streams Community due to possible change in Q
<br /> Planning&Engr value based on CLOMR
<br /> Inc Case No.95-09-154R.
<br /> Waiakea Trio Area 3A Various 09-09-2120P Waiakea Trio 3A 0870 C,0830 C Cary Korea,Belt 1/26/09 Formerly Case No,09-09- Dec-09
<br /> &0890 C Collins 0862P.9/11/09 FEMA
<br /> requests information.
<br /> Kailua Gardens Subdivision 7-5-010:088 and 09-09-1818R Hlenal i 0713 D Mr.Geoffery 5/19/09 6/19/09 FEMA requested Dec-09
<br /> 089 Drainageway Casburn,with more Information.
<br /> CMF Engineering,
<br /> Inc.
<br /> Waipahaehoe Trio 2-5-006:152 09-09-1789P Walpahaehoe Stream 0859D Paul Nash,Atlas 5/18/09 6/17/09 FEMA requested Feb-10
<br /> Trio En r more information.
<br /> Greenwell Family Flood Study 8-1-004:001,045, 09-09-1820P South Kona 0939 C and Mr.Ty Dempsey, 5/19/09 7/6/09 FEMA requested Jan-10
<br /> 052,053,054, Watercourse#1 and 0943 C with Lyon Assoc. information.
<br /> 055,070,074, Watercourse#2
<br /> 075
<br /> Kawailani Street Bridge 09-09-1608P Waiakea Stream and 0880 C,0890 C Wesley R. 12/20/07 LOMR Issued&Effective Done
<br /> Replacement Waiakea Tributary Sag—&Assoc. 2/16/10
<br /> N..2
<br /> Hilo Medical Center Parking Lot 2-3-032001 09-09-1400P Unnamed Trib to 0880C Alex Kalawe, 4/2/09 Recently combined With Jan-1a
<br /> Walluku River Engineering Case No.09-09-1398P
<br /> Partners,Inc.
<br /> Alnako Stream Flood Zone Various 09-09-1398P Alnako Stream 0880C Cary Kando,Belt 4/6/09 5/13/09 FEMA requested Jan-10
<br /> Drainage Basin Collins information.
<br /> Kona Coffe and Tea Company 7-5-017:031 & 09-09-0036R Waiaha Drainageway 0713D Ty Dempsey, 7/08 CLOMR-3/24/09 letter
<br /> Flood Channel 045 Lyon Assoc. from FEMA requesting data
<br /> within 90-days.
<br /> North Kona Flood Study 7-5,7-6&7-7 None Waiaha,Horseshoe 713D,7140, Berry Muranaka, 12/11/2008 Completing topographic May-10
<br /> Bend,Halualaa, 926 E&927D Metcalf& mapping within 30-days.
<br /> Kaumalumalu Eddy/AECOM
<br /> watercourses.
<br /> South Kona Flood Study Phase 1 8-4 None Watercourses 13-20 1166C&1167C Michael Wang, 6/24/2008 Completed preliminary Flood Nav-09
<br /> Army Corps of study.Ready to submit to
<br /> Engine— County.
<br /> South Kona Flood Study Phase 11 8-1,8-2,8-3,8-4, None Watercourses 1-12 91 Michael Wang, 6/24/2003 Working an developing Jul-10
<br /> 8-5,8-6 and 21-23 944C,1155C, Army Corps of topographic maps
<br /> 11570,11580, Engineers
<br /> 1159C,1169C&
<br /> 1407C
<br /> Puna Flood Study 1-6,1-7,1-8,1-9 None To be determined None printed Jay Stone, 12/19/2006 Completed hydrology and May-10
<br /> Oceanic H droullc analysis.
<br /> Keopu-Hlenaloli Flood Study 7-5 None Keopu and Hienaloli 0712C,713D& Derrick Elfalan, 11/20/2007 Preliminary flood study May-10
<br /> Watercourses 714C Oceanic c ompleted.Continuing to
<br /> refine flood boundaries
<br /> (hydraulics study).
<br /> County of Hawaii's flood control levees certification project:
<br /> Levees that are not properly constructed and regularly maintained, inspected and certified
<br /> have the potential to create significant community disruption and considerable cost in flood
<br /> insurance,repairing and replacing flood damaged structures.
<br /> Consequently, on November 2, 2007, the Federal Emergency Management Agency (FEMA)
<br /> notified the County of Hawaii that the County's levees (refer to Table 2)require certification
<br /> in accordance with Code of Federal Regulation Title 44 Section 65.10 (44 CFR 65.10).
<br /> FEMA's April 2007 "Fact Sheet — Meeting the Criteria for Accrediting Levees on Flood
<br /> Maps"is a good resource on FEMA's levee certification process.
<br /> 10-25 Hawaii County Multi-Hazard Mitigation Plan
<br />
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