"In the beginning they were only able to use simple manpower and crude machinery, taking two years to finish the job," says Ting Cheh-shyh. After the underground weir was finished in 1923 there was a daily output of 250,000 tons of water during the rainy season and 80,000 tons during the dry season, irrigating 2,500 hectares of farmland.
「當初建造僅以簡陋的施工機械和人力，歷時 2 年就完成了，」丁澈士表示，地下堰於 1923 年完工以後，豐水季每天的出水量為 25 萬噸，枯水季一天也有 8 萬噸，灌溉農田 2500 公頃。