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<br />.. <br /> <br />INTERIM REPORT OF JUNE 1947 <br /> <br />SECTION I _ ENGINEERING DATA <br /> <br />.' <br /> <br />Part 4 _ Reservoir Data <br /> <br />Engineering Data concerning John Martin Reservoir are <br /> <br />assembled in Tables 15 to 20 inclusive. Table 15 is reproduoed from an <br /> <br />official table, prepared by the District Engineer, U. S. Engineer Office, <br /> <br />Albuquerque, New Mexioo, showing initial surface areas and storage <br /> <br />oapacities, prior to any siltation of John Martin Reservoir. The data of <br /> <br />Table 15 may be summarized as follows: <br /> <br /> Elevation Gage Height Surface Area Storage Capacity <br /> (FeetT (Feet ) (Acres) (Acre Feet) <br /> 3870 (a) 110 llB, 300 701,218 <br />, 3851 (b) 91 12,107 420; 060 <br />. 3840 ~c) 80 9,530 300,585 <br />3815 d) 55 4,990 122,118 <br />, 3768 (e) 8 594 2,449 . <br /> Nots s : (a) Elevation above mean sea-level to high-water <br /> line at top of flood-control gates being <br /> installed on concrete spillway. <br /> <br />(b) Designated top of conservation pool. <br /> <br /> <br />(c) Top of ocnstructed concrete spillway section of dam. <br /> <br /> <br />(d) Present limit of conservation storage, applicable <br /> <br />1943-1947. <br /> <br />(e) Center line of all conduit openings through dam. <br /> <br />When construction of John Marti.n Reservoir was authorized by <br /> <br />Congress i.n 1936 (then termed Caddo a Dam and Appurtenant Works), it was <br /> <br />contemplated that an alternate location would be selected for the dam- <br /> <br />site, at which the total storage capacity would approximate 655,000 acre <br /> <br />'. <br /> <br />.2L.- <br />