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<br />- <br /> <br />- - <br />. <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />Chatfield Reservoir <br /> <br />i <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />- - <br />. <br /> <br />Recreation Mitigation Study <br /> <br />Marina Area <br /> <br />Roxboroul!h Dav Use Area <br /> <br />There is significantly higher topography in the Marina area, which somewhat limits impacts to shoreline <br />facilities, The mitigation concept for this area is shown in Map 3.4, <br /> <br />Marina Point/South Ramp <br /> <br />Marina Point facilities are significantly impacted at the proposed water elevation, The parking area, <br />group day use area, volleyball and horseshoe pits are all inundated, <br />Significant earthwork in the form of earth fill needs to be accomplished to ensure future use in this <br />area, The current facilities would be located on an elevated surface, This fill placement would include <br />construction of new breakwaters similar to those that currently exist that would function at water <br />elevation 5444, <br />At the marina, the reservoir floor would be excavated down to 5417 to enable it to operate at extreme <br />low water levels, This excavated material can be used to raise the breakwater elevations and provide <br />fill for other locations, The marina would operate in its same location, Due to a potential increase in <br />water fluctuations, the existing cable and winch system would be replaced with a modern electronic <br />winch system, <br />The interface from the reservoir to the shore at the marina would be a rip rap embankment at 2: I <br />gradient. Due to the possibility of increased water level fluctuations, a sea wall was ruled out as an <br />altemative due to the height it would need to be to function effectively, With a top of wall elevation <br />of 5446 (2' freeboard), and a possible low water elevation of 5717, the 29' high visible structure was <br />deemed too expensive and visually negative to he a reasonable option, This design would also cause <br />access problems to the marina, <br />Due to the possibility of increased water fluctuations, the marina store and restaurant were relocated <br />to the shoreline, The marina would be developed on a flotation system for the designed for the <br />occurrence of water above the 5444 elevation, <br />The parking areas, day use shelters, group use area and recreational areas associated with the South <br />Ramp would also be inundated at 5444, These areas would be rebuilt on fill areas in the same general <br />location where they currently exist. <br />The boat rental site would need to be raised and relocated slightly to the West. <br />Trails and walkways in the inundated area would be rebuilt. <br /> <br />This small yet popular day use area is entirely inundated at water elevation 5444, It would be relocated <br />to a new location close to it's existing one, Easy access to the shoreline, which it currently enjoys, <br />would remain as the draw card for this area, <br /> <br />Plum Creek Dav Use Area and Trailhead <br /> <br />Plum Creek Day Use Area is entirely inundated at the proposed water elevation, <br />The area would be relocated to the southern edge of the reservoir, The recreational facilities would be <br />replaced at this location and a new restroom would be built. <br />The Plum Creek trailhead would be relocated to this area and inundated trail segments replaced, A <br />new trail bridge would be built to span Plum Creek, <br /> <br />EDAW February 2004 <br /> <br />Page 26 <br />