OCR Text |
Show 82 THE ATI .-AMERICAN CANAL. (c) Below are given some of the dimensions of principal cross sections of the canal. The different cross sections are shown on the profile. These are numbered with identical numbers for the cross section and on the profile, showing the portion of the canal to which it is applicable (see Exhibit B). 1. The canal from Laguna Dam to siphon drop will have a bottom width of 162 feet, a water depth of 16 feet, side slopes of 2 to 1 on the river side and 1* to 1 on the land side, a gradient of 0.0000792, and an estimated carrying capacity of 10,600 second-feet. 2. From siphon drop to the sand hills, the bottom will vary from 146 to 154 feet, with water depth 15 feet, side slopes from 1^ to 1 to 2 to 1, a gradient of 0.0000786 to 0.0000862, and an estimated carrying capacity of not less than 9,000 second-feet. The different widths, side slopes, and gradients are due to different cross sections adopted to fit the varying character of the material to be excavated. 3. Through the sand hills the bottom width is 140 feet, water depth 15 feet, side slopes 2 to 1, with a berm of 30 feet on either side at the surface of the mesa floor, which is the base of the sand dunes, a gradient of 0.0000813, and an estimated carrying capacity of 9,000 second-feet. 4. From the west side of the sand hills to mesa canal No. 1 the dimensions are the same as those used from siphon drop to the sand hills. 5. From mesa canal No. 1 to mesa canal No. 2 the bottom width is 125 feet, water depth 12 feet, side slopes \\ to 1,--gradient 0.00012, and estimated carrying capacity of 6,000 second-feet. 6. From mesa canal No. 2 to the east main canal, a bottom width of 113 feet, a water depth of 12 feet, side slopes 1$ to 1, a gradient of 0.00012, and an estimated carrying capacity of 5,502 second-feet. 7. From the east main canal to near Allison heading, a bottom width of 108 feet, a water depth of 10.5 feet, side slopes 1£ to 1, a gradient of 0.00014, and an estimated carrying capacity of 4,546 second-feet. 8. From near Allison heading to the Alamo River, a bottom width of 95.5 feet, a water depth of 10 feet, side% slopes 1% to 1, a gradient of 0.000156, and an estimated carrying capacity of 3,797 second-feet. 9. From the Alamo River to the central main canal, a bottom width of 82 feet, a water depth of 9.5 feet, side slopes 1£ to 1, a gradient of 0.00017, and an estimated carrying capacity of 3,199 second-feet. 10. From the central main canal to the west-side main canal, a bottom width of 46.5 feet, a water depth of 8 feet, side slopes 1^ to 1, a gradient of 0.0002, and an estimated carrying capacity of 1,495 second-feet. |
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. |