"This construction, buried three meters beneath the riverbed and 1.8 meters high, originally was not supposed to be visible," says Professor Ting. He points to a stairway in the middle of the riverbed. This was originally the top of the underground weir. Because the Linpien River gravel was over-mined and the riverbed thus lowered, this area is now exposed.
「這個深埋在河床地下 3 公尺、高度 1.8 公尺的工程本來應該是看不到的，」丁澈士指著河床中央上一道整齊的階梯說，這本是地下堰的頂端，因為林邊溪砂石被過度開採、河床下降而裸露。