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1. A plan view of the proposed development must be furnished for all proposed floodway development. The plan view must show the dimensions and location of the proposed change in relationship to the stream and other physical features. The geometry ofthe proposed fill or excavation should be shown on the valley cross sedion so that compensati ng conveyance parameters can be reviewed. 2. Before and after cross-sed ions, plotted on graph paper. 3. Photographs of the site, upstream and downstream conditions, and of unique features that may affed the water surface profile must be provided. 4. Copy of current regulatory Flood Boundary Floodway Map, (FBFM) showing existing conditions, proposed development and revised f100dway limits. 5. Copies of the printout for the original computer models representing both the 1 DO-year and subsequent floodway determination runs which were used to develop the present effedive floodway. The printouts must include full input and output listings. 6. Copy of the printout from the hydraulic computer model representing the revised 1 DO-year profile. The model should include any channel modifications, fill or encroachments that have occurred in the floodplain since the original floodway was deli neated. 7. Copy of the printout from the hydraulic model representing the floodway run for the proposed floodway, including channel modifications and encroachments since the original floodway was established. The equal conveyance reduction method should be used to compute the revised f1ood- way limits unless agreements have been made with affected property owners to utilize a different method. The printout must include full input and output listings with all input changes from the original model highlighted. 8. A copy of the revised Floodway Data Table representing data for the proposed floodway configuration. 9. A copy of the presently effedive F8FM showing the existing floodway and one copy showing the proposed f100dway configurations. 10. Certification from a professional engineer that the physical parameters used in the proposed f100dway delineation represent actual conditions. 11. If the basis for the proposed floodway is a channel modification, the completion of a dam, or any other structural measure, evidence is required to demonstrate the design is adequate and maintenance and operations provision, where applicable, are provided. The submittal must indicate what entity has maintenance responsibility and how it will be performed. If maintenance is to be provided by agencies other than the commun ity, a legal provision for community monitoring and back-up assistance is required. 12. Documentation of approval of the proposed floodway revis the appropriate state agency for communities where the state regu floodway. 7-3 FEMA Response To Floodway Revision Requests. FEMA is to review all community requests for floodway map revisions. yo, revision is considered to be significant, FEMA will revise floodway n distribute them to recognized users. FEMA will respond to a request community for a floodway revision by one of the following means: 1. Reprinting the affeded panels of the Flood Boundary and F Map with the corresponding revised dates. The panels will be acco by a revised index panel showing the most up-to-date floodwa maintained at FEMA. Copies of the revised floodway panels will b previous recipients of the floodway maps. A revised Flood Insuran report will accompany the floodway maps. Included in the report description of the revision and revised Floodway Data Tables. 2. Revising the Flood 80undary and Floodway Map, but without ate reprinting FEMA will send one copy of the Flood Boundary and F Map designating the approved floodway revision to the communi letter of map revision (LOMR) stating that the review of the submitted has resulted in the determination that the FEMA minimum requiremf been met but a reprinting of the Flood Boundary and Floodway M warranted at this time. The material will be filed for incorporation time into a floodway map revision. The approved Flood Bounc Floodway Map revision copies will be dated. Since it is possible th has previously responded to a f100dway revision request in this ma Flood Insurance Study users are encouraged to contad the communi proceeding with plans for development within f100dway fringe ar ways. 3. Send a letter to the community stating that the submittal m incomplete and/or that the revised flooway does not meet FEMA n criteria. 7-4 Submittal of Material. The material requesting revisions to f areas must be submitted by the community to the appropriate FEMA Office. The Regional Office will review the material for completenes: with the proposed changes, approve any maintenance ordinances, ward the necessary material to the FEMA Central Office. The FEMA Central Office will review the hydrologic and ~ materials, engineering design, and any plans of operations and mail (where appropriate), request additional revisions or corredions as nl then respond to the community by mneans of the appropriate adior in Sedion 7-3. 20