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<br />I, <br />I' <br />I <br />I <br />I <br />I <br />I, <br />I <br />- <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />r <br />I <br />I <br /> <br />description of the installation process. <br />2. The owners must carefully check the work site daily for any changes. <br />If changes occur, both the State Engineer's Office and Rocky Mountain <br />Consultants, Inc. are to be notified. <br />3. Use of the outlet and ditch will be terminated on September 30, <br />1990, and will not be used again until permanent repairs or <br />modifications are completed. <br />All of the conditions of the State Engineer's Office were met, with the <br />final requirement being the repair of the No. 1 outlet for which funds from <br />the Colorado Water Conservation Board are being sought via the application <br />previously submitted and this Feasibility Study. <br /> <br />B. Geolooic Investioations <br />Test holes were drilled at the dam on October 10, 1990. The topographic <br />mapping, drill hole locations, and boring logs are shown in Appendix D. The <br />dam embankment is underlain with about seven feet of clay. The clay is soft <br />to medium stiff, silty, sandy, moist, brown. The clay is underlain by <br />claystone beds of the Middle Shale Member of the Pierre Shale. The claystone <br />beds range from very stiff to hard with clayey sandstone lenses. The beds are <br />moist, sandy, grey to brown. Information regarding the sampling and <br />laboratory testing is also included in Appendix D. <br />C. Desion <br />The design, plans and specifications for repair of No. 1 outlet have not <br />yet been completed. In general, the repairs will include breaching the <br />existing dam and removing the existing outlet works. The outlet works will be <br />replaced with a single 24-inch or 30-inch ductile iron pipe, a new headgate <br />structure, gate and operating stem. The dam will then be reconstructed <br /> <br />23 <br />