(A) For any proposed subdivision that is located or partially located within a flood plain, the developer shall provide the Board of County Commissioners with a development plan of adequate scale, and supporting documentation that will show and explain, at least, the following:
(1) Location of all planned improvement;
(2) The location of the floodway and the floodway fringe per engineering practices, as specified by the Army Corps of Engineers;
(3) Any planned rerouting of water channels;
(4) All major drainage ways;
(5) Areas of frequent flooding; and
(6) Means of flood proofing buildings.
(B) Upon the determination that buildings are planned within the flood plain or that alterations of any kind are anticipated within the flood plain area that will alter the flow of water, the developer shall, through design, demonstrate conclusively to the Board of County Commissioners that such development will not present a hazard to life or limb, hazard to property, or adverse effects on the safety, use, or stability of a public way or drainage channel.
(C) In determining the appropriateness of a subdivision for land located within a flood plain, the Board of County Commissioners shall consider the objectives of this chapter, and, at least, the following:
(1) The danger to life and property due to the increased risk of flood;
(2) The danger that improvements may be swept onto other lands or downstream to the injury of others;
(3) The adequacy of proposed water supply and sanitation systems and the ability of these systems to prevent disease, contamination, and unsanitary conditions under flood conditions;
(4) The susceptibility of the proposed facility and its contents to flood damage;
(5) The compatibility of the proposed uses with existing development, and development anticipated in the foreseeable future;
(6) The relationship of the proposed subdivision to the flood plain management program for the area;
(7) The safety of access to the property for emergency vehicles;
(8) The expected heights, velocity, duration, rate of rise, and sediment transport of the flood waters expected at the site; and
(9) The costs of providing governmental services during and after flood conditions including maintenance and repair of public utilities and facilities such as: sewer; gas; electrical; water systems; streets; and bridges. No subdivision, or part thereof, shall be approved if levees, fills, structures, or other features within the proposed subdivision will individually or collectively significantly increase flood-flows, heights, or damages. If only part of a proposed subdivision can be developed, the Board of County Commissioners shall limit development to that part and shall require the developer to proceed consistent with that determination.
(D) Any subdivision lying within the boundaries of any flood plain shall clearly show on the final plat said flood plain boundaries.
(Ord. 70, passed 5-19-2020)