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<br />44. BARRIER DAM REPLACEMENT STORAGE. - The existing Barrier Dam
<br />will be removed from the river to permit construction of Pueblo Dam and
<br />Reservoir. Replacement storage of 21,000 acre-feet will be included
<br />in the new project to offset the loss of flood control storage presently
<br />provided by Barrier Dam. This is in addition to flood control require-
<br />ments to control the design flood. The storage at Barrier Dam is due
<br />to surcharge since there are no control gates on the existing structure.
<br />The ,surcharge flood control storage is induced upstream from the ex-
<br />isting dam by forcing floodflows through a 41.5-foot notch. The Bureau
<br />of Reclamation plans to replace this storage by surcharge storage above
<br />the spillway crest of Pueblo Reservoir.
<br />
<br />ECONOMIC DATA
<br />
<br />45. AREA OF INFLUENCE.- The economic area influenced by construc-
<br />tion of the multiple-purpose Pueblo Reservoir includes that part of the
<br />Arkansas River drainage upstream from John Martin Dam. The area in-
<br />cludes the following counties in Colorado: Bent, Chaffee, Crowley,
<br />Custer, El Paso, Fremont, Huerfano, Lake, Las Animas, Lincoln, Otero,
<br />Pueblo, and Teller. These counties are shown on plate 7. The popula-
<br />~ tion and areas of the counties are listed in table 4. These counties,
<br />comprising a total area of 21,383 square miles, would be strongly in-
<br />fluenced by development of water resources due to economic ties and
<br />- geography. Also in the basin, but excluded from the area economic study
<br />because of negligible areas and sparse population, are parts of Baca,
<br />Costilla, Kiowa, Park, Elbert, and Saguache Counties in COlorado, and
<br />Colfax and Union Counties ip,)/El,W Mexico. Various segments of the econ-
<br />omy have been evaluated with regard to present influence upon the area
<br />and future potential develo~~nt.
<br />
<br />46. SOURCES OF DATA AND PRICE LEVELS.- Data relative to the eco-
<br />nomic base were obtained from the U.S. Bureau of the Census, U.S. Depart-
<br />ment of Agriculture; U.S. Bureau of Mines; information prepared by the
<br />Economic Task Group of the Ad Hoc Water Resources Council Staff; publi-
<br />cations of Resources for the Future, Inc., on national economic growth
<br />projections; the Colorado Department of Agriculture; and the CoZorado
<br />Year Book, 1959-1961.
<br />
<br />47. Monetary values have been adjusted, except where indicated
<br />otherwise, to 1963 constant dollars. Indexes used'for conversion in-
<br />clude the crop price index, wholesale price index, consumer price index"
<br />and the ENR construction cost index.
<br />
<br />48. HISTORICAL BACKGROVND.- Although, according to historians,
<br />the history of Colorado and the study area began thousands of years ago
<br />with a race of people of which little is known, the modern era could be
<br />said to have started with the discovery of gold in 1858 at Pikes Peak.
<br />Several years before this historic event, such famous men as Jim Bridger,
<br />"Uncle Dick" Wootton, Jim Beckwourth, and Kit Carson frequented the forts,
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