Geological Series Volume 3

Geological Series Volume 3

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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. 1906 edition. Excerpt: ...cracks in the dry masonry wall. It is a question of only a short time when this dam will break like the others. There is no place on either James or North Rivers where power, now unused, could be so cheaply developed. The low waterpower that could be developed here is about 300 horse-power. Dam No. 2, Devils Steps dam, (A), Plate VII, is 5.5 miles from the mouth of North River; the crest of the dam is about 10 feet below the Chesapeake and Ohio Railway, the height is 11 feet, and the present drop in the water surface is 2.4 feet. This was a stone dam, like most of the others on North River, and more than half is washed away. The head wall on the left bank is good, and on the right bank there is a solid rockledge, which served as a head wall and which gave the dam its name. Dam No. 1, Miller's dam, is 5.2 miles from the mouth of North River; the crest of the dam is about 10 feet below the Chesapeake and Ohio Railway and its height is 10 feet. This dam was built of logs, with stone filling, and is now nearly destroyed, except the head walls, which are good. This was the lowest dam on North River. Blue Ridge dam, on James River, just below the mouth of North River, ponds the water in North River for over a mile. In the "Report on the water-power of the Middle Atlantic watershed," Tenth Census of the United States. Vol. XVI, Part I, pp. 531-551, valuable information is given concerning the James River and its tributaries. Froiii that report the following table is reprinted: This table shows only the dams below Buchanan, or on the completed portion of the canal. It was the intention to extend the canal eventually to the Ohio River, and for this purpose surveys were made and two dams located and built above Buchanan, which have never been...
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Product details

  • Paperback | 32 pages
  • 189 x 246 x 2mm | 77g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123654627X
  • 9781236546272