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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />the piping to the first valve would need to be installed while the <br />outlet is closed. <br /> <br />It is expected that the outlet would be closed for about 28 <br />working days or the entire month of October. <br /> <br />6.6 OUTLET CLOSING PROCEDURE <br />The outlet would be closed for the gate repair during the <br />month of October so that there would be little, if any, impact on <br />irrigation water releases, which end about mid-October. The <br />weather in October is usually good and snow does not begin to <br />accumulate until November. <br /> <br />The contracts with the divers who will close the outlet and <br />the welder/mechanics who repair the gates and modify the turbine <br />piping should be executed no later than mid-July so that the <br />necessary preparations can be made. The contractors need time to <br />make the plug, obtain the gate seats, etc. <br /> <br />The divers will inspect the intake structure in late August, <br />prior to construction of the plug. This inspection is to assure <br />that the intake is accurately depicted in the as-built drawings <br />and to determine if 25 years of operation have affected the <br />condition of the structure. The inspection could possibly be done <br />by a remote controlled robot rather than a person. It is hoped <br />that the barges would be available for the inspection. Specific <br />plans to close the outlet will be developed once the inspection is <br />performed. <br /> <br />Around September I, a decision will be made by the engineer, <br />the District and the divers to determine the appropriate reservoir <br />elevation to be maintained during construction, and the approxi- <br />mate day that the outlet will be closed, so that irrigators can be <br />notified. An elevation range of between 8090 ft and 8099 ft will <br /> <br />6.0-8 <br />