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Erosion of River Banks on the Mississippi and Missouri Rivers
A general survey of the Mississippi River from Cairo, Ill., to Donaldsonville, La., was made by the Mississippi River Commission during the years 1879 to 1883. This comprised a system of secondary triangulations, carried out with all the refinements usual in such work, by means of which numerous stone monuments were located at frequent intervals along the river, to serve as initial points for all future surveys. On these points careful topographic surveys were based and additional stone survey marks were set, marking sections of the channel (thalweg) at intervals of 3 miles along the river. On these lines there were usually placed four stones, one on each side of the river and about ⅓ mile from it, the others being about ½ mile farther back. In the survey these lines are called stone lines.
Erosion of River Banks on the Mississippi and Missouri Rivers
A general survey of the Mississippi River from Cairo, Ill., to Donaldsonville, La., was made by the Mississippi River Commission during the years 1879 to 1883. This comprised a system of secondary triangulations, carried out with all the refinements usual in such work, by means of which numerous stone monuments were located at frequent intervals along the river, to serve as initial points for all future surveys. On these points careful topographic surveys were based and additional stone survey marks were set, marking sections of the channel (thalweg) at intervals of 3 miles along the river. On these lines there were usually placed four stones, one on each side of the river and about ⅓ mile from it, the others being about ½ mile farther back. In the survey these lines are called stone lines.
Erosion of River Banks on the Mississippi and Missouri Rivers
Ockerson, J. A. (author)
Transactions of the American Society of Civil Engineers ; 28 ; 396-424
2021-01-01
291893-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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