| OCR Text |
Show 80 PROBLEMS OF IMPERIAL VAULEY AND .VICINITY. (c) East mesa pumping, comprising the area under the D line. (d) Dos Palmas, the tract on the east side from the Southern Pacific Railroad at Iris, north to range line between ranges 10 and 11 east. (e) Coachella Valley, the north end of the project to the end of the A line. (f) West side gravity, the area between the B line and the Imperial irrigation district west boundary, extending north to the north line off. 14 £. (a) West mesa pumping, the pumping areas on the west side. (h) Mexican gravity and pumping, the mesa lands in Mexico adjacent to the border oh the east side. Areas and status of lands,.-The gross, net, or irrigable areas and the approximate status of lands in the above districts are shown by the following table. The net areas are the arable lands under the proposed canals as determined by the Strahorn soil stirvey and as shown by the hatched areas on the, accompanying map. The status of lands was determined by Mr. Grault from the land office records at El Centro, and areas are here adjusted by proportion to conform to the corrected total net areas. The results may be considered approximate only. Areas and approximate status of lands, Imperial Valley. [Acres.] Oross area. Net area. Status of lands. District. Public. Private. State.i Southern Pacific Rail-rbad.i Entered. Indian. Imperial irrigation district. East mesa gravity.......... East mesa pumping........ f)ns Pdlmas . , 603,800 164,500 41,800 81,000 121,000 95,200 27,400 515,000 124,300 36,000 5,300 71,800 10,000 23,000 114,000 34,300 700 3,800 3,600 10,700 515,000 1,200 6,700 1,700 1,200 1,200 200 12,100 1,000 300 4,400 600 1,000 2,600 36,800 4,400 2,300 1,500 3,300 l,300-8,000 11,400 100 Coachella Valley gravity__ West side gravity.......... West mesa pumping....... Total in United States. Mexican gravity,™......... Mexican pumping...... ?... 1,134,700 32,000 11,000 785,400 22,000 8,000 167,100 20,000 4,300 529,500 2,000 3,700 14,700 47,300 15,300 11,500 .... ^f... y Total under All-American canal.........• Salton Sea...... 1,177,700 179,000 815,400 191,400 535,200 14,700 47,300 15,300 11,500 1 Original State and railroad lands, sales to individuals not shown. COST ESTIMATES. unit prices. Canal excavation, earth, per cubic yard.................................... $0. 25 Canal excavation, loose rock, per cubic yard............................... . .60 Structure excavation, earth, per cubic yard....»...............-.':.......... .75 Backfill, per cubic yard.................................----...............25 Reinforced concrete, small structures, per cubic yard----................... 30. 00 Reinforced concrete, large structures, per cubic yard................. 20. 00-25; 00 Lateral system, per acre....................i............................. 16. 00 Right of way, improved land, per acre............. ........._.,........... 125. 00 Telephone line, on main canals, per mile................................... 250. 00 Telephone line, on laterals, per mile.......................................200. 00 Administration, engineering, and contingencies, add 25 per cent to all of the above items. |
