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<br />JV"'1:0 <br /> <br />bedrock. A total of 46,000 cubic yards of <br />concrete has been placed in Morrow point Dam <br />as compared with the total of 360,000 cubic <br />yards to be in the dam proper. <br /> <br />Excavation of the underground powerplant <br />is practically completed and work will go <br />ahead finishing the interior and making the <br />necessary installations of equipment. <br /> <br />I <br /> <br />Good progress is being made on Rifle Gap <br />Dam and other features of the Silt project. <br /> <br />Construction is well advanced into final <br />steps on the second 345-kv. line from Glen <br />Canyon to Pinnacle Peak and the Curecanti to <br />poncha section of the Curecanti to Midway <br />line. Construction is just getting well under <br />way on the poncha to Midway section of that <br />line. <br /> <br />Moving on to the Colorado River runoff <br />forecast, precipitation over the Upper Colorado <br />niver Basin for January, February, and March <br />was only some 40 percent of normal. The month <br />of March was even less or about 30 percent <br />of normal. Furthermore, we have experienced <br />unusually warm temperatures, particularly dur- <br />ing March, so that the snowpack in the high <br />mountains has shrunJ{ considerably according <br />to snow course measurements. Therefore, the <br />April 1 forecast for April through July run- <br />off is only 4,500,000 acre-feet, as compared <br />with the January 1 forecast of 9,300,000 <br />acre-feet. <br /> <br />The prospect of a rather low April <br />through July runoff is not as serious as it <br />might appear. ,'7i th the above normal \rlinter I <br />temperatures this year, the measured runoff <br />for the first six months of the water year <br />(OctOber 1965 through March 1966) has been <br />about 3,900,000 acre-feet or 1,300,000 acre- <br />feet above average. Therefore, it is probable <br />that this already-measured runoff along with <br />the forecast amount of 4,500,000 acre-feet <br />