Report of the Engineer of the Sacramento Valley; Irrigation and Navigation Canal. (Umschlagtitel.)

Report of the Engineer of the Sacramento Valley; Irrigation and Navigation Canal. (Umschlagtitel.)

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1867 edition. Excerpt: ...basin, and a feeder of mortared masonry, with six semicircular openings of two feet radius, will admit the feed. The first half mile of the canal will be adjusted to the ground, so that the excavation from it and the pit of the guard lock and feeder will supply the embankment required for crossing the river For the next two miles it will have one bank. At first it will be in bottom land, but will gradually approach and rise upon the slope of the bank which forms tho margin of the high plain. At Harlan's, two and a half miles from the head, it will ascend to the plain, and with two banks, cross the country drained, and at tho same time broken by the several branches of Coyote Creek. On the eighth mile it crosses Elder Creek by an aqueduct of one span. Thence over a high plain, broken by dry ravines, the line of drainage of the plain in seasons of great rain, it passes on to Tom's Creek on the fourteenth mile. This stream is crossed by an aqueduct of three spans. Passing over a broad bottom and through a narrow ridge and second valley, the route enters the plain again at a range of isolated hills, the foot of the eastern slope of which it follows for four and a half miles; then crossing the ridge at a depression in it, the route enters and crosses the valley of Trumpler's Creek, with two banks. Then to the valley of the north fork of Dry Creek, it passes by a deep cut two miles in length, with a maximum depth of fifteen and eight one tenths feet. This cut may perhaps be avoided, and with advantage and economy, by turning to the left, near Station No. 168, on the twenty-first mile, and leaving the hills at first upon the right, pass through them at the southern extremity, and ascend the valley of the north fork of Dry Creek. The line of levels run...
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Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236504631
  • 9781236504630