Agenda - 11-14-2017 - D.2 - Unified Development Ordinance (UDO) and Zoning Atlas Amendments

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Article 2: Proced Section 2.6: Floodplain Development APPLICATION, Permit and Certificate Requirements The following items/information shall be presented to the Floodplain Administrator to apply for a floodplain development permit: (A) A plot plan drawn to scale which shall include, but shall not be limited to, the following specific details of the proposed floodplain development: (1) The nature, location, dimensions, and elevations of the area of development/disturbance; existing and proposed structures, driveways, utility systems, grading/pavement areas, fill materials, storage areas, drainage facilities, and other development; (2) The boundary of the SFHA as delineated on the FIRM or other flood map as determined in Section 4.3.5 Section 1.1.3 of this Ordinances or a statement that the entire lot is within the SFHA; (3) Flood zone(s) designation of the proposed development area as determined on the FIRM or other flood map as determined in Section 1.1.3 of this Ordinance Section 4.3.5; (4) The boundary of the floodway(s) or non-encroachment area(s) as determined in Section 4.3.5 Section 1.1.3 of this Ordinance; (5) The Base Flood Elevation (BFE)where provided as set forth in SectionLs} /1.3.51.1.3, 1.10.2 (K) and (L), and 6.6-46.21; (6) The old and new location of any watercourse that will be altered or relocated as a result of proposed development; and (7) Preparation of the plot plan by or under the direct supervision of a North Carolina licensed professional Land Surveyor or Professional Engineer and certified by them. (B) Proposed elevation, and method thereof, of all development within a SFHA including but not limited to: (1) Elevation in relation to mean sea level NAVD 1988 of the proposed reference level (including basement) of all structures; (2) Elevation in relation to mean sea le el NAVD 1988 to which any non-residential structure in Zone AE will be flood-proofed; and (3) Elevation in relation to mean sealevel NAVD 1988 to which any proposed utility systems will be elevated or flood proofed. (C) If flood proofing, a flood proofing certificate (FEMA Form 086-0-34) with supporting data, an operational plan, and an inspection and maintenance plan that includes, but is not limited to, installation, exercise, and maintenance of floodproofinq measures all-d-baerk-up plans-completed by from-a registered professional engineer or architect shall be required certifying that the non-residential flood proofed development will meet the flood-proofing criteria in Section 6.6.16.21. (D) A Foundation Plan drawn to scale, which shall include details of the proposed foundation system to ensure all provisions of this Ordinance are met. These details include but are not limited to: (1) Proposed method of elevation, if applicable (i.e., fill, solid foundation perimeter wall, solid backfilled foundation, open foundation on columns/posts/piers/piles/shear wall); and (2) Openings to facilitate equalization of hydrostatic flood forces on walls according to Section 6.621.1(B), when solid foundation perimeter walls are used in Zones. (E) Usage details of any enclosed space below the regulatory flood protection elevation. 15 Updating references to the section of the UDO where flood maps are identified. Orange County, North Carolina—Unified Development Ordinance Page 2-14