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2 The proposed Pawnee Creek Overflow Interceptor Channel will intercept all base flood discharges from south of the proposed channel. As a result, all SFHAs north of the proposed Pawnee Creek Overflow Interceptor Channel that previously resulted from the Pawnee Creek Overflow will be redesignated Zone X (shaded), areas that would be inundated by the flood having a O.2-percent chance of being equaled or exceeded in any given year. Upon completion of the project, your community may submit the data listed below and request that we make a final determination on revising the effective FIRM and FIS report. . Because the proposed Pawnee Creek Overflow Interceptor Channel is designed to convey the entire base flood discharge in the channel, please address during final design the potential for erosion ofthe channel lining and specifically, areas on the south side slopes where floodwaters would enter the channel. . Detailed application and certification forms, which were used in processing this request, must be used for requesting final revisions to the maps. Therefore, when the map revision request for the area covered by this letter is submitted, Form I, entitled "Revision Requester and Community Official Form," must be included, (A copy of this form is enclosed.) . The detailed application and certification forms listed below may be required if as-built conditions differ from the preliminary plans, If required, please submit new forms (copies of which are enclosed) or annotated copies of the previously submitted forms showing the revised information. Form 4, entitled "Riverine Hydraulic Analysis Form" Form 5, entitled "Riverine/Coastal Mapping Form" Form 6, entitled "Channelization Form" Form 7, entitled "Bridge/Culvert Form" . As-built plans, certified by a registered professional engineer, of all proposed project elements . Hydraulic analyses, for as.built conditions, of the base flood if they differ from the proposed conditions models After receiving appropriate documentation to show that the project has been completed, FEMA will initiate a revision to the FIRM and FIS report. The basis of this CLOMR is, in whole or in part, a channel-modification/bridge project. NFIP regulations, as cited in Paragraph 60.3(b)(7), require that communities assure that the flood-carrying capacity within the altered or relocated portion of any watercourse is maintained. This provision is incorporated into your community's existing floodplain management regulations, Consequently, the ultimate responsibility for maintenance of the modified channel and bridges rests with your community.