Sessional papers of the Dominion of Canada 1909 . 19a—5b GEORGIAN BAY SHIP CANAL SURVEY 81 SESSIONAL PAPER No. 19a plication in construction and be less enduring and less easily repaired tlian the up-stream slope of earth. There are examples in the mountains of rock slides causing dams; a recentremarkable example being the Frank slide, Alberta, which completely obstructed theOld Man river for a time. Across the Winnipeg river, near Kenora, is a notable example of a rock-fill dambuilt by dumping from cars. It was constructed 15 years ago by Messrs. John andWm. Kennedy, and, at the present day,
Sessional papers of the Dominion of Canada 1909 . 19a—5b GEORGIAN BAY SHIP CANAL SURVEY 81 SESSIONAL PAPER No. 19a plication in construction and be less enduring and less easily repaired tlian the up-stream slope of earth. There are examples in the mountains of rock slides causing dams; a recentremarkable example being the Frank slide, Alberta, which completely obstructed theOld Man river for a time. Across the Winnipeg river, near Kenora, is a notable example of a rock-fill dambuilt by dumping from cars. It was constructed 15 years ago by Messrs. John andWm. Kennedy, and, at the present day, supports an 18 to 20 foot head. The sluice-ways are closed by stop-logs, and altogether it closely resembles the style of dam andregulation that I propose. (See cuts.) Regulatiox Sluices for Reaches Although the dams pen up the river into reaches or lakes, there still exists aconstant flow of water not noticeable, it is true, in wide, deep sections, but never-theless amounting to many thousands of cubic feet each second. This bulk of accu-mula
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