The public work for the Neihu Area Fifth Replanning District is part of Taipei City Neihu Area Replanning Project. Of which, the sewerage system serving the wastewater catch basin covers an area around 42.32 ha. The planned wastewater flow is 22,470 CMD. Content of the project are: 300m/m PVC pipe with a length of 2,220m, 400m/m RCP pipe with a length of 1,255m, 500m/m RCP pipe with a length of 515 m and 600m/m RCP pipe with a length of 150 m. Quantity of precast manhole is 45 sets. The piping layout follows generally the contour of the ground level in the catch basin, and connects to the existing sewerage system of Neihu area.