Multi-Hazard Mitigation Plan: 10. Floods

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Chapter 10 Appendix T'LOODPLAiN MANAGEMENT §27-12 (2) Cati fied or preliminarily determined by the Secretary of the Interior as contributing to the historical significance of a rcgislcrcd historic district or a district preliminarily dcturmincd by the Secretary of'lhe Interior to qualify as a rcgislcrcd historic district.. (3) Individually listed on a Slate of Ilawai'i inventory of historic places where the historic preservation program has been approved by the Secretary of the interior;or (4) Individually listed on a local inventory of historic places in communities with historic preservation programs that have been certified either, (A) By an approved Stale program as determined by the Secretary ofthe Interior,or (B) Diractly by the Sccrctary of the Interior in states without approved programs. `Lcvice'means a man-made structure,usually an earthen embankment designed and constructed in accordance with sound engineering practices to contain control. or divert the flow of water so as to provide protection from temporary flooding, "Levee system" means a flood protection system which consists of a levee, or levees, and associated stmetures, such as closure and drainage devices, which are constructed and operatud in accord with sound engineering practices. "Lowest floor" means the lowest floor of the lowest enclosed area (including basement). An unfinished or flood resistant enclosure.usable solely for parking of vehicles.building access,or storage in an area other than a basement area is not considered a building's lowest floor provided that such enclosure is not built so as to render the structure in violation of the applicable noncicvation design requirements of this chapter. `Manufactured home-means a structure,transportable in one or more sections,which is built on a permanent chassis and is designed flor use with or without a permanent foundation when attached to the required utilities. 'lhe lerm "manufactured home"includes a "mobile home' but does not include a "recreational vehicle." "Manufactured home park or subdivision"means a parcel(or contiguous parcels)of land divided into two or more manufactured home lots for rent or sale. "Market value."For the purposes of determining substantial improvement,market value pertains only to the structure in question.It does not pertain to the land,landscaping,or detached accessory structures on the property.For determining substantial improvement.the value of the land must always be subttactcd.Acceptable estimates of market value can be obtained from the following sources: (1) Independent appraisals by a professional appraiser licensed by file State. (2) Property appraisals used for tax assessment purposes by 1ha County department of finance,real property lax office. (3) The value of buildings taken from National Flood Insurallec Program claims data. This value shall be used as a screening tool to identify those structures where the substantial improvement ratio is less than forty percent or greater than sixty percent. "Mean sea level" means, for purposes of the National Flood Insurance Program. the National Gcodclic Vertical Datum of 1929 or other datum, to which hasc flood elevations shown on a community's Flood Insurance[fate Map are referenced. "Minimum necessarv"related to article 5,variances,of this chapter mcam the minimum necessary to afford relief to the applicant of a variance with a minimum deviation from the requirements of this chapter.in the case of variances to an elevation requiroment,this means the director of public works need not grant permission for the applicant to build al grade,for example,or even to whatever elevation the applicant proposes,but only that level that the director of public works believes will bout provide relief and preserve the integrity of this chapter. "New construction"for floodplain management purposes,means structures for which the-start of construction"comtnenced on or alter May i. 1982,and includes any subsequent improvements to such structures. 27.7 SUPP 5 (1-2008) 1 0A-9 Hawaii County Multi-Hazard Mitigation Plan