River and Canal Engineering, the characteristics of open flowing streams, and the principles and methods to be followed in dealing with them. — 3. Works in Tidal Rivers.—If any works are required in the tidal portion of a river, the principles to be followed in de

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River and Canal Engineering, the characteristics of open flowing streams, and the principles and methods to be followed in dealing with them. 3. Works in Tidal Rivers.—If any works are required in the tidal portion of a river, the principles to be followed in de · ch 70/78

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