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<br />- 2- <br /> <br />and costs of these improvements; the second volume would <br /> <br />be a technical addendum that would present more detail on <br />the hydrology, channel routing and stream hydraulics. More <br /> <br />of the detailed computer modeling results would be included <br /> <br />in this technical volume. In addition to the two volumes of <br /> <br />the report, reproducible copies of the full size (1"=100 feet) <br /> <br />mapping of the Gore Valley with the flood plain delineated <br /> <br />will be produced for detailed appraisal and use by the <br /> <br />techni cal staff of the Town of Vai I. The reproducibles of <br /> <br />the current mapping would be made available by the Town for <br /> <br />the consultants use in this study. In addition, one set of <br />'7 the aerial photos of the valley would be required to assist <br /> <br />in the development of the mathmatical model of the channel. <br /> <br />The study limits would be from the confluence of Main <br /> <br />Gore with Black Gore Creek at the east end of the Bighorn <br /> <br />development westward through the Town of Vail to a point <br />approximately 400 yards upstream of the confluence of Gore <br />Creek with the Eagle River near Dowds Junction. <br />The computer program for the backwater analysis is <br /> <br />based on the energy continuity theorem by which total <br /> <br />., <br /> <br />energy at a known or defined lower section is carried upstream <br /> <br />.,...., <br /> <br />by balancing the energies and considering the friction and <br />other losses between the sections. The critical water surfac~ <br /> <br />',(' I <br />1"/ <br /> <br />elevation corresponding to the minimum specific energy is <br /> <br />" <br /> <br />-' f <br />