OCR Text |
Show -37- easily, and unless the canal water carries enough clay to eventually fill the voids, the annual loss will be very great, being sometimes as great as 50% of the inflow. I have not, in my experience met with conditions more favorable, for the minimum loss from seepage, than here. The canal will be, all the way, in a sedimentary soil of close texture, and the large amount of clay, carried in the water, will soon render the banks impervious. The loss may be considerable for the first year of operation, after that, I doubt if it will exceed 1% of the full supply. Cost of mam canal The following estimate of cost is an estimate of the actual amount of cash required in the construction fund. In it I assume that the cash will be in the treasury, or forthcoming, when required, that all construction work, including the purchasing of materials and supplies will be under my control, that the canal will be completed within two years from date of commencement of construction, that the present prices of labor and supplies will not change materially and that there will be no material change in the present plans. In general, the plans which are set forth in greater detail in other parts of this report, and in the profiles and data accompanying it, are: that the canal shall have the following capacities: From the Potholes to El Rio, 3500 cubic feet per second. From El Rio to New River, 2000 " " " From New River to Mesquite Lake, 400 " " " |
Source |
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. |