Gungsan phase I sewage sewer system designed and supervised by TY Lin TW, include I-III sectors, with a planned area of 719 hectares. It covered a total of 10 administrative areas; including the old urban area of Ciaotou and the demonstration community of Kaohsiung new urban (also known as the 1st development zone), the second and south areas of Dienbow creek, the latest development zone. Total area of the sewerage system case is about 703 hectares, with the adjacent sewage treatment plant next to the Ciaotou District and Bixiu Li (Intersection area of Linxi and Lintoe Road),which about 16 hectares. This project adopted short pipe (Ф300mm diameter), and the main pipe (Ф1200mm  diameter). To limit the underground pipelines import to the households and nearby traffic, push-forward construction method is adopted. This project completed in April 2019.