Because the Maopu drainage project is located in a low-lying area and the stone structure of the channel was seriously damaged, there was frequent flooding. As a result, the Yilan Office launched the Maopu drainage improvement project, which was completed in November 2022 and won the 2023 Annual Agricultural Engineering Award (Design supervision, execution) - Honorable Mention Award
- Maopu drainage improvement of 600 meters:
With the cantilever retaining wall, foundation piles were laid to stabilize the structure.
- Improvement of 1,548 meters adjacent to small drainage channel and small ditch:
Considering the water storage needs of hilly areas in the Yilan field area, concrete rectangular ditches were used to improve the situation.
- 1 automatic lodging type weir water gate:
In the case of temporary heavy rain, the gate leaf automatically falls down and discharge flood water based on the rising water level, improving management efficiency.