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Prono.wd.2rPost- L1r9jWnditit Madel: Modify the ExistingCondition <br />QD )ns <br />or Pro -Project Cmidition-0y1odel (or Bupl carr Efft-efive. model or Corm- ted <br />I- <br />,ftective model, as appropriate) to retlect revised or ppost- jectcon ro ditjons. <br />The overbank rougliness coefficients should reattain the saine unless a <br />reasonable explanation of how the proposed development will impact <br />Mwutings "n" values is included%ith the supporting daU. The results of this <br />analysis twill indicate, th <br />_e, I00 -year elevation for proposed conditions at the <br />prcject site. These rexult s niust indicate NO impact on the 100 -year floodway <br />elevations -shhen compared to the Existing Conditions or pre -Project <br />Conditions model, If an increase results the projectwill require the submittal <br />of a CLOMR prior to the start of the project, <br />The "no -rise' supporting data and a copy of the enizincering certification must be <br />submitted to and reviewed by the appropriate coinLnity official prior to issuing a <br />The 'no -rise' supporting data should include, but may not be limited to; <br />1) Copy of the Duplicate Eff"livernodel, <br />2) Copy of the Corrected Effective model; <br />3) Existing conditions, or Pre -Project oonditions model <br />4) Proposed conditions or Post -Project conditions model_ <br />5)FIRM and topographic map, showing floodplain and floodway, the additional <br />crass -sections, the site location with the proposed topographic modification <br />&IT erimpo.,wd onto thr maps, and a copy of the effective FIRM or F13F M showing <br />the current regulatory Headway, <br />6) Documentation clearlystating analysis pwedures. All modifications made to the <br />original FIS model to represent revised existing conditions, as well as thoso made <br />to the revised exi'sting conditions model to represent proposed conditions, Stiould <br />be well documented atid submittedwith all supporting data, <br />7) Copy of effective Floodway Data Table ropicd from the (FIS) report. <br />8) Statement defining source of additional cross-section topographic data azid <br />supporting irtfDrunat'10M <br />9) Cross -suction plots,, of the addem! cross sections, forre-visedexisting W14 proposed <br />eonditionns, <br />10) Certifled platilinetrit (boundary survey) inforinatim iridivatiftg the location of structures <br />on tile property, <br />October 200q <br />2016 PIDS Manual, Appendix B-5 B-5-3 <br />