原有河道 meaning in English

original river

If it is really necessary to stuff or block up or demolish them , consent should be obtained from the water conservancy administrative department and the case be reported to the people ' s government of the city for approval
城市建设不得擅自填堵原有河道沟叉、贮水湖塘洼淀和废除原有防洪围堤；确需填堵或者废除的，应当经水行政主管部门审查同意，并报城市人民政府批准。
The social and economic impact caused by the construction of plover cove reservoir were not just confined to the nearby villages . the ancillary works , including water pipelines and access roads , reached out to areas as far as sai kung , yuen long , castle peak , tsuen wan and sha tin . some rivers in these areas were diverted making agricultural pursuits difficult , as residents needed to obtain fresh water from outside their villages . some villages were turned into new roads , with residents being forced to resettle elsewhere
船湾淡水湖于1961年春开始兴建工程，不但影响附近的村落，水塘的配套工程如兴建输水管和修筑公路等，波及范围远至西贡、元朗以北、青山、荃湾及沙田一带，有些乡村因原有河道被堵截而无法再从事农耕，生活饮用水亦需外求，有些乡村被辟为公路，整条乡村被迫迁徙。