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Show 74 THE ALL-AMERICAN CANAL. second-feet through the sand hiils. This surrey followed along and parallel with the international boundary from a point just west of Hanlon heading to a point near the present east high-line canal. (e) In 1916 and 1917 the Imperial-Laguna Water Co. made surveys for an all-American canal along practically the same route followed by the Imperial Irrigation District in 1913, except it only extended westerly to a point where the mesa lands could be served. The early plans of this company contemplated a canal of 1,865 second-feet through the sand hills. Later the company planned a canal of 4,100 second-feet capacity. (/) The data and maps of these different surveys were available and have been made use of in making the surveys and estimates. SURVEYS. (a) In 1917 a survey was made by the Reclamation Service for a power canal from Siphon Drop to a proposed power site near Araz. Very careful and complete topography had been taken over this section. The previous year cross sections had been taken on the main Yuma Canal from Laguna Dam to Siphon Drop. It was found that we could use all of this work, and therefore the survey was taken up at the end of the proposed power canal near Araz and extended southwesterly to a point on the east side of Pilot Knob. At this point it will be necessary to either construct a large-sized tunnel or an open cut for about 800 feet through a rocky spur of Pilot Knob which projects out to the east from the main mountain. This is the only feasible route and is necessary in order not to interfere with the Imperial Irrigation District's quarries. From this point the line continues in the same general course to a point 400 feet north of the international boundary and thence parallels the boundary to a point well within the blow-sand area. From this point the line runs to the northwest, keeping well on the mesa floor among small sand dunes not exceeding 12 or 15 feet in height. At a point about 2 miles north of the international boundary the line takes a southwesterly course through an open mesa for more than a mile and then again swings to the northwest through a high blow-sand ridge for 3,000 feet, entering another open mesa, locally known as Government Gap. Passing through this mesa from east to west for about 1£ miles, the canal takes a southwesterly course, crossing two main sand ridges totaling about If miles, where it emerges onto the east side mesa with a water surface about 25 feet below the level of the mesa, continuing this same course until it reaches a point 400 feet north of the international boundary, thence along the boundary to international monument No. 213, where the line runs somewhat north of the boundary, keeping generally a westerly course, in order to take advantage of the topography of the ground. As the line nears |
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Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : California exhibits. |