The national park also plans to undo the changes made by the seven sand retention dams along the Chichiawan. Using simple materials like wood or boulders, they will build some pools and rapids in places where siltation has made the current too gentle and too straight.
至於現存七家灣溪上的七座攔沙壩，雪霸國家公園將設法利用一些簡單的設施，比如置放一些木頭或大石頭，在填滿砂石、水流過於平直的攔沙壩上，製造一些潭、瀨。