"A dead horse cannot be brought back to life." Therefore the national park will start by removing a sand retention dam from a nearby stream. If the impact on the environment is too severe, then the dams on the Chichiawan will not be removed for now.
死馬不能當活馬醫，國家公園因此打算找附近溪流的攔砂壩做實驗，如果拆了對環境衝擊太大，就先不拆。