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<br />JVff(OJ()fe ;51 Plans\ ror Crysy'oJ D(Q]uff]
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<br />VI P,SHINGTON-Environmental consId-
<br />eration alld a lower cost facto!' havt:
<br />TI2SLlted in a change of plans for a dam
<br />I site on the Gunnison River to be con-
<br />struct'2d by the Bureau of ReL:!amation.
<br />Interior Department officials annoullced
<br />Jvronday that the E:rystal Dam near Mon-
<br />!rf);:'p rn!n will hi> ':l rln11h1.CL""........+."....
<br />, _ ___., ..on __ .. ~u_~.... _...~...."........
<br />Hlin-arch concrete dam rather than th~
<br />earthen dam orIginally pl8nncd.
<br />The change is expected to save about $7
<br />million in construction costs, Commis-
<br />siOller of Reclamation Ellis L. Armstrol16'
<br />:)aid. The concrete dam will also greatly
<br />red,lce the environmental impact in the
<br />IJJ.rrow canyon because it will require lc:-;s
<br />../oiL:me of construction m2te:-iab and C.?11
<br />be built with much lc:ss excavation work
<br />and defacement of the nearby area, he
<br />Said.
<br />The dam site is upstream from the
<br />boundary of the Black Canyon of the GUll-
<br />ni~on National Monument where tbe
<br />canyon walls tower more th3n 1,000 feet
<br />~-lb')ve the Gunnison River. The concrete
<br />dam will be built 1,630 feet upstream frorn~
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<br />.
<br />
<br />the originally planned earlh,filled struc-
<br />tUre.
<br />First work on the project will be con-
<br />. slmction of a I,OOO-foot-long tunnel
<br />through which the river water will be
<br />diverted around the dam site. Bids will be
<br />;.!r1'JpT'ti<;:f'rl Trlr fhp. tllnn"] in ';;::r>nhHnhor
<br />. . --- --.- .-....y. ... -~%"".~,..~~.,
<br />Armstrong said. Construction bids for the
<br />dam itself will be advertised probably in
<br />January 1~73, he said, with completion
<br />scheduled for late 1975, dependent upon
<br />
<br />PEN u<:d<- Pos-+
<br />,- 5 - 7 I
<br />
<br />the availability of construction funds.
<br />Crystal Dam and Its power plant will be
<br />the third and IInal leatures of the
<br />CurecantI Storage Unit of the Colorado
<br />River Storage Project. The two other
<br />dams already. completed upstream Irom
<br />1\'", rr..d-::ll r1-::lTYl cifo "l"O llhu. lI./I"ac", ""'N
<br />"'~ ~'J~.~. ~~... ~'.y ~~~ ~.~... -,~...-.... ........
<br />Morrow Point.
<br />A si.x-mi!e reservoir will form behind
<br />the Crystal Dam up to the base of Mor.
<br />row Point Dam, which is also a double.
<br />
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<br />
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<br />curvature thin-arch concrete design. It
<br />will serve as a reregulating pool for the
<br />120,OOO-kilowatt capacIty Morrow Point
<br />power plant which is designed for opera~
<br />tion as a peaking facility.
<br />When water is releDscd from Morrow
<br />Point Dam, it can be recaptured and used
<br />,,"'<>;,., fro ",,,,,,,,,,,,+,, ",,,,,,,,,, "f th" ("...,,,..t.,l
<br />....o....u ". o........~.....y t'''...... ....~ ...... .....J..,.<<~
<br />Dam. This is reregulating. A .peaking fa-
<br />CIlIty is a plant that Is used l."hen peak
<br />demands for power occur, suth as just
<br />after sundown. . ... T
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