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<br />SUBSTANTIATlNG MATERIALS <br /> <br />Practicablli ty of EnlargiDi, and Extending <br />King Consolidated Canal <br /> <br />Introduction <br /> <br />A total. of 15.150 acres of un:trrigated land was originaJ.ly planned <br />to be irrigated by the P:l.ne River project extension. Of that total. 8.7'0 <br />acres in scattered tracts 8:/:!enoll' 1m:practicable for FederaJ. development for <br />reasons explained in previous sections of this report. The remaining 6.420 <br />acres are situated in more compe.ct tracts and could be irrigated by an <br />enlargement and extension of the King Consolidated C8.nal. The justifica- <br />tion for building the Pine River project extension to include only the <br />enlargement and extension of the King Consolidated CanaJ.. has been investi_ <br />gated in sufficient dete1J. to justify the conclusion that the project would <br />not be practicable. The cost of the project would be greater than the <br />resulting benefits. Project irrigators could not pay the full cost of pro;)_ <br />ect opera.tion and 1I18intenance and could repay no ;part of the construction <br />cost. <br /> <br />This section of this report describes the studies that lead to the <br />conclusions expressed above. Investigations of various phases of the <br />project ranged from high-grade reconnaissance to defin1 te plan deta-1J.. <br />The results are believed to provide a sound. basis for the conclusions <br />reached. The investigation is here reported in less deta1J. than it would <br />be if the report were intended to justify a construction program. Phases <br />of the investigat:J.on that proved to be favorable to project development. <br />such as water supply. are reported in less detail than the critical phases <br />that lead to the unfavorable conclusions. such as project lands. Add:1- <br />tionaJ. data on all phases of the investigation are fUed in the Area Office <br />of the Bureau of ReclAmAtion at Ilurango. Colo. <br /> <br />Project plan <br /> <br />The plan of development described in the following ;paragraphs is the <br />one that was found. to be most nearly justified for reasons developed later <br />in the report. A generaJ. 1I18p of the project is on the following page. <br /> <br />Through enlargement and extension of the King Consolidated CanaJ... <br />the Pine River project extension would provide an a-verage of 10.400 acre- <br />feet of water annually. as a tulJ. irr:1ga.tion supply for '.100 acres of <br />land. The water would consist of natu;..'aJ. flows of Pine River supplemented <br />by storage releases from the existing Vallecito Reservoir constructed in <br />19:;8-41 as the P:l.ne River FedereJ. reclalllation project. <br /> <br />The plan includes repJ.acement of the existing King Consolidated <br />divers:Lon works with a permanent structure of greater capacityj enlarge- <br />ment of the first 11.5 m1J.es of the King Consolitlated Ca.naJ.j and con- <br />struction of the Ridge CanaJ.. (22.1 miles long). the Salt Creek lateral. <br />(11.9 m1J.es long). a secondary 1ateraJ. system. and about 40 m1J.es of <br />AhAl10w surface drains. <br /> <br />4 <br />