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<br />Parker Dam, lake Havasu <br /> <br />STATISTICS <br />ACTIVE S1.DRAGE- <br />AESERVOIP <br /> <br />IACAE. <br />FEETI <br />619,400 <br />619,400 <br />439400 <br />20'400 ACRES <br />. 35MfLES <br /> <br />elEVATION <br />\FEET) <br />4':10.0 <br />4500 <br />4400 <br /> <br />At the beginning of water year 1977, the water level <br />of lake Havasu was at elevation 448 feet, with an <br />active storage of 581,000 acre.feet. The reservoir <br />was drawn down to about elev3tion 446 feet, with <br />an active storage of about 541,000 acre-feet in <br />November, and remained near that level through <br />mid.March to provide flood control space for run. <br />off from the drainage area between Davis and <br />Parker Dams. The 'Nater level 'Nas then raised to <br />about elevation 450 feet by mid-May. During mid. <br />May through June, the reservoir water level was <br />maintained near maximum, with an active storage <br />of about 60~,OOO acre.feet, and by the end of the <br />water year was drawn down to 447 feet with an <br />active storage of 566,000 acre.feet. <br /> <br />During the water year, 6,718,000 acre.feet were <br />released at Parker Dam, all of which passed through <br />the turbines for power production, <br /> <br />Joint.use space in the top 10 feet of lake Havasu <br />(about 180,000 acre. feet) is reserved by the United <br />States for control of floods and other uses, includ- <br />ing river regulation, Normally, only about the top <br />4 feet, or 77,000 acre-feet of space, have been <br />used for this purpose since Alamo Reservoir on <br />the Bill Williams River has been in operation. <br />(Chart 10.) <br /> <br /> <br />MAXIMUM STORAGE <br />RATED HEAD <br />MINIMUM POWER <br />SURFACE AREA lFULU <br />fl"SERVQ1R LENGTH (FULl) <br /> <br />POWER PLANT <br />NUMBER OF UNITS <br />TOTAL CAPACITY OF UNITS <br /> <br />4 <br />110.000 KILOWATTS <br /> <br />'d~ nOI ;(IclurJ. 28.600 M;ft '"t of d~iId sro,.. below <br />t:1'~iW(J{l400.0 'HI <br /> <br />OUTFLOW <br /> <br />20 <br />6 <br />10 <br /> <br />UPPER QUARTILE <br /> <br />~ <br />W <br />~ <br />< <br />W <br />~ <br />W <br />~ <br /> <br />10 <br />0 <br />20 <br />6 <br />10 <br />, <br />0 <br /> " , ~ z <br /> I g 0 ~ <br /> Z 0 <br /> <br /> <br />!'f!\ <br /> <br />~ 0 <br />8 20 <br />w <br />~ <br />>= <br />~ 10 <br />~ <br />~ <br />m <br />~ <br />L> <br />~ <br /> <br />~:.~~, . <br /> <br />w > 0 " ,; z <br />z " 0: ~ <br />~ ~ ~ W L> ~ ~ <br />< ~ I 0 a <br /> <br />"'..,." ."-- .,' ,",:~ ':;:. <br /> <br />;:.-.~ ):,"; i;?{ "!:i.: .''!' ~;:;.:.' <br /> <br />~ :i ~ ~ <br />11. ::i; 0( ::i <br />Wa1tr Yea. Il" <br /> <br />\ <br /> <br />ai II: II: >- <br />~ ~ ~ ~ <br />WilerYur,'IJ7 <br /> <br />w > <br />~ ~ ~ <br /> <br />. <br />~ I <br /> <br />20 <br />