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麻笏河

麻笏河和梧桐河合流之處,相中河道淺窄為麻笏河,河道寬闊為梧桐河。
渠務署麻笏河改善工程後,近塘坑。

(英語:Ma Wat River)是位於香港新界北區的一條河流,上流始於大埔九龍坑山,流經康樂園粉嶺安樂村的東面,在龍躍頭梧桐河合流,最後流入深圳河

水浸黑點

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麻笏河是大埔九龍坑水浸問題的根源,由於麻笏河河道淺窄,排洪能力不足,是兩個四級以上水浸黑點之一。2005年6月24日的一場豪雨,水浸至1米高,影響鄰近包括九龍坑、元嶺、和合石村、南華莆和塘坑東村五條村約4,000村民,損失嚴重。

渠務署耗資1億6,000多萬港元治理大埔麻笏河,於2005年6月展開第一期改善工程,受工程影響而需搬遷的九龍坑村民共有84戶(共162人),改善工程透過拉直、加闊(原來4至15米的河道擴闊至26至36米)及挖深河道,將兩條舊行車橋重建升高,改善河道「樽頸」位置的排洪能力,靠近元嶺村的支流位置,以往是排洪能力較低的「樽頸」位,為解決問題,於港鐵東鐵綫路軌下,開鑿四條長2.1米的大型地下排水管道,疏導洪水,另增加一條排洪繞道,新河道可將七成雨水疏導流入梧桐河,再將洪水排入深圳河[1]。預計於2008年年底完工,到時可提昇麻笏河的排洪能力,減低附近地區的水浸威脅[2],河道排水量增加至每秒300立方米,足以抵擋五十年一遇的大雨[3]。至於第二期工程則是改善餘下4公里的河道,造價逾2億港元。

環保工程

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麻笏河重建河道加入環保元素,以前人工河道的河床部份主要鋪上石屎,而麻笏河則在河底擺放石塊,提供適合兩棲動物的生態環境,河岸兩旁則鋪設草磚,除可以鞏固河堤外,在草磚上再種樹,綠化河道兩岸[4]

参考資料

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外部連結

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麻笏河
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