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<br />Lake Havasu [Colorado River]
<br />
<br />
<br />1.", ...
<br />Parker Ol!IIm .pllllng In 1983.
<br />
<br />Walar Yaar 1983
<br />At the beginning ot water yeer 1983, the water
<br />level of Lake Havasu, Impounded by Parker
<br />Dam, was at elevation 447 feet with an active
<br />.torage ot approximately 560,000 acre-teet.
<br />The reservoir was drawn down to
<br />epproxlmately elevation 445 teet, with an
<br />active storage of about 525,000 acre-feet In
<br />January to provide vacant space for runoff
<br />from the drainage area between Davis and
<br />Parker Dams. The water level was then raised
<br />to an approximate elevation of 450 teet by the
<br />end of May, with an active storage of about
<br />609,000 acre-teet. By the end ,of the water
<br />year, Lake Hav88u was drawn down to about
<br />446 leet.wlth an,actlve storage,ot 541 ,000
<br />acre-feet.
<br />
<br />During the water year I approximately
<br />13,782,000 acre-feet were released at Parker
<br />Dam, of which approximately 10,269,000
<br />acre-feet passed through the turbines for
<br />power production. The total release amount
<br />Included flood control releases trom Alamo
<br />Dam on the Bill Williams Rlvar.
<br />
<br />Space In tha top 10 teet of Lake Havasu (about
<br />180,000 acre-teet) I. reserved by the Unltad
<br />States tor control of floods and other uses,
<br />Including river regulation. Normally, only
<br />about the top 4 teet, or 77 ,000 acre-teet ot
<br />space, have been ussd tor this purpose since
<br />the Alamo Reservoir on tha Bill Williams
<br />River has been In operation.
<br />
<br />20
<br />
<br />Water Year 1984
<br />Lake Hav8su Is scheduled at the highest levels
<br />consistent with the requirements for
<br />maintaining reservoir regulation space. The
<br />yearly low elevation of approximately 446 feet
<br />Is scheduled tor the November through
<br />February high flood hazard period. The yearly
<br />high ot about 450 leet Is scheduled for tha low
<br />flood hazard month. of May and Juna. During
<br />water yea, 1984, a total olapproxlmately 14.9
<br />million acre-feet Is scheduled to be released
<br />from lake Havasu to meet all downstream and
<br />flood control requirements. Of that total,
<br />approximately 12.3 million acre-feet are
<br />scheduled to pas. through the Parkar
<br />powerplant.
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<br />DraInage pump.
<br />
<br />Leke Havasu Active Storage"
<br />
<br />Reservoir (Acre-Feet)
<br />
<br />Maximum Storage 619,400
<br />Rated Head 619,400
<br />Minimum Power 439,400
<br />Surface Area (Full) 20,400 Acres
<br />Reservoir Length
<br />(Full) 35 Miles
<br />
<br />Power Plant
<br />Number of Units
<br />Total Capacity
<br />
<br />Chart 8
<br />EI.(Ft.)
<br />
<br />450.0
<br />450.0
<br />440.0
<br />
<br />4
<br />120,000 Kilowatts
<br />
<br />.does nOllnclude 28,600 acre-feet or dead storage
<br />belo..... 400.0 feet
<br />
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