Welang river watershed management’s authority is handled by the East Java Provincial government, has a topographical condition that varies greatly with the upstream part of the mountains with the highest elevation of 3212.5m above sea level, while the downstream with an elevation of 0 to 9.25 m above sea level. Economic is often affected by the flood from downstream area in the north coast of east Java causing. This research was carried out to apply eco-drainage to control flooding that often occurs in the Welang river. The methodology carried out in this study was carried out by collecting rainwater that fell into infiltration wells before flowing into the river so that the capacity of the river to still be able to accommodate The results obtained from this study are flood discharge that must be controlled by infiltration wells with Q2 years of 31.1 m3 / s and Q 5 th of 68.27 m3 / sec while for controlling flood Q2th a well of 39448 pieces is needed while for flood discharge Q 5 is required well as many as 40,186 wells.
|Number of pages||7|
|Journal||International Journal of Civil Engineering and Technology|
|Publication status||Published - Aug 2018|
- Eco Drainage
- Infiltration Wells
- Welang Watershed