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<br />The Granada Flood Control Project provides 100..year flood protection for the Town of <br />Granada including property and residents, <br /> <br />Areas and properties in the 1 DO-year floodplain prior to construction of the Project were <br />shown on the U.S. Department of Housing lilld Urban Development (HUD), Federal Insurance <br />Administration (FIA), Flood Hazard Boundary Map of the Town of Granada, (Prowers County), <br />Colorado, dated July 18, 1975. <br /> <br />Completion of the Project in 1980 modified the lOO-year floodplain for Wolf Creek as <br />shown on the HUD map and excluded the 1 DO-year flood from the portion of the Town in the <br />] OO-year floodplain lying east and south of the Corps right bank levee. As a result the entire <br />corporate limits of the Town east and south of the Corps right bank levee were then out of the <br />IOO-year floodplain. The portion of the floodplain within the corporate limits of the Town lying <br />west of the Corps right bank levee along Wolf Creek remain in the IOO-year floodplain. <br /> <br />The Federal Emergency Management Ag(:ncy (FEMA) acknowledged the Project's <br />protection in a letter dated June 14, 1984 to tile T OWIl of Granada. FEMA stated in the letter that <br />they had determined that the community (TO\iVIl of Granada) met FEMA's criteria for conversion <br />into the Regular Flood Insurance Program as minimally flood prone on the basis that the Town's <br />Special Flood Hazard Area was small in size, with minimal flooding problems, and was unlikely <br />to be developed in the foreseeable future, The Flood Insurance Rate Map (FIRM) cited in this <br />letter was produced from the previously issued Flood Hazard Boundary Map, The effective date <br />of this action and the final FIRM was September 24, 1984. <br /> <br />POST-PROJEcf FLOODED AREAS <br /> <br />The approximate post-project floodpl<lin boundary for Wolf Creek is shown in Appendix <br />III on Plate 3, titled Flooded Areas (Post Proj$ct Conditions), This map and infommtion included <br />in Appendix III was prepared by the Corps. <br /> <br />Because of the protection provided by the Project, the pre-project 1 DO-year floodplains for <br />Wolf Creek have been modified. The 100-ye:ar flood is now excluded from the corporate limits <br />of the portion of the Town in the 1 DO-year floodplain lying east arid south of the Corps right <br />bank levee. The portion of the floodplain within the corporate limits of the TO~~llying west of <br />tile Corps right bank levee along Wolf Creek remain in the 100-year floodplain. The <br />unincorporated areas to the landside (east and south) of the Project levee are also protected, <br /> <br />Floods larger than the 100-year flood can occur on Wolf Creek and th" Town may be <br />subject to risks from such floods. Floods were exp'~rienced in the summer of 1993 tlu'oughout <br />the Midwest that in fact exceeded the design capacity of their levees, <br /> <br />The modification of the pre-project 1 DO-year floodplains by the Project challileJ and levee <br />confines the lOO-year flood to a smaller portion of the original floodplain but provides increased <br />channel capacity for the flood flows, This increased channel capacity also increased tile velocity <br /> <br />7 <br />