|
<br />Lower Basin Reservoirs
<br />
<br />RESERVOIR
<br />MAXIMUM STORAGE
<br />RA TED HEAD
<br />MINIMUM POWER POOL
<br />SURFACE AREA (FULL)
<br />RESERVOIR LENGTH (FULLl
<br />POWE R PLANT
<br />NUMBER OF UNITS
<br />TOTAL CAPACITY OF UNITS
<br />
<br />STATISTICS
<br />ACTIVE STORAGE.
<br />IACRE.FEETl elEVATION (FEET!
<br />27,377,000 1229
<br />13,653,000 1123
<br />10,024,000 10B3
<br />162,700 ACRES
<br />115MILES
<br />
<br />Lake Mead at the beginning of water year
<br />1972 had a wa ter surface level of 1,154 feet and
<br />an active storage of 16,886,000 acre-feet. During
<br />the water year releases were made to meet
<br />downstream water use requirements in the
<br />United States and Mexico, programed levels of
<br />Lakes Mohave and Havasu, and transit losses
<br />which included river and reservoir evaporation,
<br />uses by phreatophytes, changes in bank storage,
<br />unmeasured inflows and diversions, etc. The
<br />total release from Lake Mead thr()ugh Hoover
<br />Dam was 8,268,000 acre-feet. At the end of the
<br />water year, Lake Mead had a water surface
<br />elevation of 1,158 feet and an active storage of
<br />17,451,000 acre.feet, which reflect an increase
<br />in storage during the water year of 565,000
<br />acre.feet.
<br />Lake Mead is the only reservoir on the
<br />Colorado River in which a specified space is
<br />allocated exclusively for mainstream flood con-
<br />trol. Flood control regulations have been pub-
<br />lished which take into account effective space in
<br />CRSP reservoirs as well as in Lake Mead.
<br />Space in Lake Mead and CRSP reservoirs
<br />during water year 1972 was such that no
<br />unusual Hoover releases were required to opere
<br />ate pursuant to provisions of the flood control
<br />regulations. (Chart 7)
<br />
<br />Hoover Dam
<br />Lake Mead
<br />
<br />
<br />Chart 7
<br />
<br />17
<br />1,344,800 KILOWATTS
<br />
<br />"does nor include l,318,OOOacre./eer 01 dead sroriJl}e belowelevarion 895 feel
<br />
<br />OUTFLOW
<br />
<br /> . '.. - - "5:"- '. - .- ,
<br /> ./ .,- "
<br /> - / -
<br />. - - .' :-. .' "--'" - . ,
<br /> ". .
<br /> . ., 0 -
<br /> - .
<br />
<br />LOWER aUARTllE
<br />
<br />""'""~\
<br />
<br />
<br />AVERAGE '-, - -., ,.'_',-;_-~
<br />\\ ,""l.
<br />.",-:~ ,~~~.,)~~,
<br />.. '\.~, 'C. \
<br />""<'\
<br />.~. ...,~%:\,
<br />"''-,;\'''. ".'
<br />. ~~ -..:::;. "',v;' '-
<br />. o'~',-;x;\,~,\
<br />., .'), "'il.'''~'.''l>,
<br />,!"'.ilf;~,t.,~~
<br />~~--::~..:~:...,,~~~;~\ ,
<br />" -,........ c--..... --_..",,~. -..;~"\,,,
<br />t . ,,; :;--.... "",,-,\
<br />., """-.. ....- '~\
<br />':. " -..::...-~~
<br />.1 . ".~' r^ -........,~
<br />
<br />MOST ADVERSE
<br />
<br />20 I
<br />10
<br />
<br />a 0
<br />z
<br />o 20
<br />u
<br />w
<br />~
<br />~
<br />~ 10
<br />~
<br />~
<br />~
<br />~ 0
<br />~ 20
<br />o
<br />o
<br />
<br />t3 10
<br />~
<br />~
<br />w
<br />"
<br />~ 0
<br />20
<br />
<br /> .-' .. .. - --
<br /> .- -.
<br />-",... I~ .;-:-: ~. , ,
<br />.' . .. .;'N-
<br />'",.':'" ~'-- ~:': .:":l~li1'; !l- ~ :VI.,'! .-!:~. i~- ~;;t: 0i~_y i~
<br />(-~ .
<br /> ..
<br />
<br />10
<br />
<br /> " .. .. '.
<br /> - .. -
<br />.. .. .- .,
<br /> . .. . .
<br />
<br />.
<br />u
<br />c
<br />
<br />> U
<br />o w
<br />Z 0
<br />
<br />z CJ:I i:I:: ~ >-
<br />:; ~ ~ ~ ~
<br />Wale' Year 1972
<br />
<br />w >
<br />Z ~
<br />~ ~
<br />
<br />00 ~ . > u z .,; <i ~ > w > 00
<br />~ u 0 w w ~ ~ ~ Z ~ ~ 0:
<br />~ ~I 0 z 0 ~ ~ ~ ~ ~ ~ ~ ~ w
<br /> W~t.r Ye,r 1973 ~ I
<br /> 14
<br />
<br />o
<br />
|