This tunnel was the most problematic portion of the whole Peihuei line, and it took a full five years to complete.
最後決定乾脆將長一百廿四公尺的滑動地層全部挖掉，免除後患。這個工程動用了七十八部大小機具，日夜兼程趕工，足足挖了七個月，挖走的土堆可以填滿廿萬輛卡車。就這樣，一座山被挖成了兩座山，一座隧道也分隔為二。北迴鐵路修築成功，移山的愚公﹘﹘榮工處員工們尤其喜不自勝。