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Understanding of the Project I I 1 I I I 1 1 I I I I 1 I I I I I I SECTION 2 Project Objectives Clear Creek County and the Town of Georgetown have obtained a grant from the State of Colorado Flood Mitigation Assistance Program (FMAP) to prepare a local pre-disaster Flood Hazard Mitigation Plan (FHMP). In order to complete the FHMP, County and Town staff desire development of a holistic, integrated flood control master plan for Georgetown. This plan will provide an approach for mitigating existing flood hazards in a manner which: . is consistent with the historic character of the Town . applies uniform planning criteria to all problem areas . is fmancially feasible . is publicly acceptable . is practical, usable and flexible The study area for the flood control master plan covers: . Clear Creek from 15'h Street upstream to the limit of existing development . South Clear Creek from the Clear Creek confluence upstream to the limit of existing development The Town 1S contemplating recreation improvements which could be integrated with flood mitigation measures on the reach of Clear Creek between 15'h Street and Georgetown Lake. This reach is excluded from the study area. Statement of the Problem Based on the current FEMA Flood Insurance Rate Map (FIRM) for Georgetown and June 1991 aerial mapping, there are approximately 85 residential and business structures (excluding sheds and small outbuildings) located within the boundaries of the 100-year floodplain for Clear Creek and South Clear Creek. In the recent flood events of 1965, 1983, 1985 and 1995, a much smaller number of structures were affected. Overflows occurred only on South Clear Creek (also known as Leavenworth Creek) and the resulting flooding was generally confined to those areas south and east of the confluence of South Clear Creek and the main Clear Creek channel. In the most recent flood of 1995, streets were sandbagged to contain and direct South ((II) MONTGOMERY WATSON . 2-1