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CABARRUS COUNTY DEVELOPMENT ORDINANCE CHAPTER 16 -FLOOD DAMAGE PREVENTION Along rivers and streams where BFE data is provided by FEMA or is available from another source but neither floodway nor non -encroachment areas are identified for a Special Flood Hazard Area on the FIRM or in the FIS report, the following requirements shall apply to all development within such areas: (1) Standards of Part 5, Sections A and B; and (2) Until a regulatory floodway or non -encroachment area is designated, no encroachments, including fill, new construction, substantial improvements, or other development, shall be permitted unless certification with supporting technical data by a registered professional engineer is provided demonstrating that the cum a effect of the proposed development, when combined with all other existing and anticipated developme i not increase the water surface elevation of the base flood more than one (1) foot at any point within the co unity. SECTION F. FLOODWAYS AND NON -ENCROACHMENT AREAS Areas designated as floodways or non -encroachment areas are located within the S ial Flood H d Areas established in Part 3, Section B. The floodways and non -encroachment areas are extremely rdous areas a to the velocity of floodwaters that have erosion potential and carry debris and potential projectiles. following p inions, in addition to standards outlined in Part 5, Sections A and e, shall apply to all developm 'nsuc as: (1) No encroachments, including fill, new construction, substan 'mpr a nd other developments shall be permitted unless: TRI IJF Hi 9E1 fL� TRI IJF (a) It is demonstrated that the proposed encro ent would not r ny increase in the flood levels during the occurrence of the base flood disc based on hydrolo and hydraulic analyses performed in accordance with standard engineering and presented to the Floodplain Administrator prior to issuance of floodplain development permit; QF (b) A Conditional Letter of Map ron (C MR) has b approved by FEMA. A Letter of Map Revision (LOMR) must also be obtained withiy�in completio ofthe proposed encroachment. (c) In addition to subs5¢iiq (a) and a following standards apply to all fill activities in special flood hazard areas: II II IIII a. Fill material must be eras Ei to drain. rovide such is protected aeainst erosion. When expected velocities <1r1lomte hall be provided. When expected velocities during the base flood are five feet per second or nshallbg rovided by covering them with vegetative cover. b.atial on whi is structure isto be located shall be extended at grade 10 feet beyond the limits t tion and shall have a side slope no steeper than one foot vertical to two feet of clean granular or earthen material. (2) 'Wrt 5, Sectioit(1) is satisfied, all development shall comply with all applicable flood hazard reduction provisions of (3) No manitured homes shall be permitted, except replacement manufactured homes in an existing manufactured home park or subdivision, provided following provisions are met: (a) The anchoring and the elevation standards of Part 5, Section B(3); and (b) The encroachment standards of Part 5, Section F(1). 24 Page 222