Chapter 27 Flood Plain Management

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(c) FLOODPLAIN MANAGEMENT § 27-17 (4) Floodproofing certification. For all new nonresidential construction and substantial improvement with enclosed areas below the base flood elevation, the Federal Emergency Management Agency "Floodproofing Certificate" form, as amended, shall be completed and certified by a civil engineer or architect, currently licensed in the State of Hawaii and shall be submitted for approval with the building plans. The director of public works may require additional information regarding the floodproofing design from the permit applicant and the applicant shall provide it. The information required may include the design data and calculations used in the floodproofing design, a detailed flood elevation study, a drainage report, and other information as determined necessary by the director of public works to establish compliance with the provisions of this chapter and to promote public welfare and safety. Post -construction certification. Requirements for approval of the certificate of occupancy shall include the following items, as applicable, and any additional items as required by the director of public works to promote public welfare and safety: (1) Elevation certification. The Federal Emergency Management Agency "Elevation Certificate," as amended, shall be completed and certified by a land surveyor, civil engineer, or architect currently licensed in the State of Hawaii and submitted for approval with the application for the certificate of occupancy. The information certified within the "Elevation Certificate" shall be based on actual construction. (2) Compliance with other requirements of this chapter. (1993, ord 93-78, sec 3; am 2001, ord 01-108, sec 1; am 2007, ord 07-169, sec 10; am 2010, ord 10-115, sec 4; am 2017, ord 17-56, sec 9.) Section 27-18. Standards for construction. Standards for construction within areas of special flood hazards are established as follows: (a) Anchoring. (1) New construction, improvements to repetitive loss structures, and substantial improvements shall be adequately anchored to resist flotation, collapse or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy. (2) All manufactured homes, including mobile homes, shall meet all standards for structures. (b) Construction materials and methods. (1) New construction, improvements to repetitive loss structures, and substantial improvement shall be constructed with materials and utility equipment resistant to flood damage. (2) New construction, improvements to repetitive loss structures, and substantial improvement shall be constructed using methods and practices that minimize flood damage. 27-17 SUPP. 3 (1-2018)