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<br />1 <br />I <br />I <br />I <br />I <br />I <br /> <br />Water surface profiles, typical cross-sections, and maps showing the 100- <br />year flood boundaries are shown on included exhibits and flood plain <br />maps. Table 3 shows computed flood elevations at specific cross- <br />sections, <br /> <br />No HEC-2 Floodway Analysis was done; therefore, the 500-year flood lines <br />were not shown on the flood plain maps. This was agreed upon by the City <br />of Canon City and Colorado Water Conservation Board. <br /> <br />Flood boundaries were located on the set of topographic maps, previously <br />referred to, by transferring flood elevations (at map contour intervals) <br />from plotted profiles (from HEC-2) to the maps using stationing along the <br />main channel as the location reference, These points were connected and <br />smoothed to create the maps' flood boundaries. <br /> <br />FLOOD PLAIN MANAGEMENT <br /> <br />Potential flood damages to existing development and possible loss of life <br />can be alleviated or lessened through non-structural and structural flood <br />hazard mitigation methods. <br /> <br />Non-structural methods include: Local flood plain regulations, land <br />treatment, flood warning and forecasting systems, flood insurance, flood <br />proofing, flood fighting and emergency evacuations. <br /> <br />A. Local Requ1ations <br />The need to minimize property damage due to flooding has been recognized <br />by planners and local community officials, Subdividers and developers <br />are required to submit proposed storm drainage plans to the planning <br />commission for approval. In the past, drainage plans have been prepared <br />singularly or on a plat-by-plat basis. Information contained in this <br />report will be useful in developing a master drainage plan for the study <br />area. This report provides the outline of flood hazard areas on large <br />scale maps specifically for this purpose. <br /> <br />The City may provide zoning regulations "... To establish, regulate, <br />restrict, and limit such uses on or along any storm or floodwater runoff <br />channel or basin, as such storm or floodwater runoff channel or basin has <br />been designated and approved by the Colorado Water Conservation Board, in <br />order to lessen or avoid the hazards to persons and damage to property <br />resulting from the accumulation of storm of floodwaters,.." as stated in <br />Section 30-28-1l1 for county governments and Sections 31-23-302 for <br />municipal governments of the Colorado Revised Statutes. <br /> <br />B. Colorado Natural Hazard Area Requlations <br />In 1974, the Colorado General Assembly passed House Bill 1041, a bill <br />"Concerning land use, and providing for identification, designation, and <br />administration of areas and activities of State interest,..." (H.B, 1041, <br />Title 24, Article 65.1, C.R.S., as amended). Areas of State interest <br />include natural hazard areas, or those areas that are "So adverse to <br />past, current, or foreseeable construction or land use as to constitute a <br />significant hazard to public health and safety or to property". Flood <br />plains are natural hazard areas, <br /> <br />With reference to <br />65 ,l-202 (2) (a) of <br />so as to minimize <br /> <br />the administration <br />the Act provides: <br />significant hazard <br /> <br />of natural hazard areas, Section 24- <br />Flood plains shall be administered <br />to public health and safety or to <br /> <br />11 <br />