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<br />TEnTH AnnUAL REPORT
<br />
<br />BOULDER CAnYOn PROJECT
<br />
<br />This is the tenth annual report of the operation, maintenance
<br />and construction activities of the Boulder Canyon Project, covering
<br />the fourteenth operating year ended May 31, 1951. It is submitted
<br />in compliance with section 13 of the Boulder Canyon Project Adjust-
<br />ment Act (54 Stat. 774, approved July 19, 1940), which became fully
<br />effective on May 29, 1941.
<br />
<br />This operating year was notable in that it marked a period of
<br />renewed major construction and improvement with three additional
<br />generating units being installed. On the other hand, a marked de-
<br />crease in the water runoff in the Colorado River basin resulted in
<br />reduced power production, with attendant decreases in power reve-
<br />nues. Local and regional growth in population increased industrial,
<br />defense, and governmental activities and the upswing in the broad
<br />economy has had its effect on project operations, particularly in the
<br />labor and material market, but this has not seriously retarded the
<br />over-aIl program being followed. Despite certain wage increases to
<br />meet local prevailing wage rates, operating economies were effected,
<br />expenses being 6% under those of the previous year; and the perennial
<br />Boulder City problem was attacked with renewed vigor, after the
<br />completion last year of an expert administrative analysis thereupon,
<br />
<br />Expenditures for enl8;rging and improving the plant properties
<br />were over $6,500,000, or more than triple those of the previous
<br />year, while retirements of worn-out or obsolete facilities amounted
<br />to less than $160,000.
<br />
<br />By far the major item of construction was the installation of
<br />three additional generating units, A-3, A-4 and A-9, on which more
<br />than $4, 750,000 were expended. The second most important item of
<br />construction was the installation of transmission or switchyard facil-
<br />ities required for the new generators, on which some $805,000 were
<br />expended, Related powerhouse impr"ovements accounted for $283, 000
<br />and about $171,000 were spent for improvements on the dam, reser-
<br />voir, hydraulic works, and general property, About $45,000 wer.e
<br />spent on completing the metal trim and painting of Units A-l, A-2.
<br />A-5, and N-7,
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