This is a road drainage system in preparation for rainy season. The speed bumps prevent erosion and divert the water into a drainage ditch which will be lined with rice sacks and salvaged aluminum. The water from the drainage ditch will go through a silt trap and fill our aquaculture pond.
Apparently you can create a speed bump pump, where you place a pump under a wooden speed bump and every time you drive over it you actually pump water into your water tanks. Ideas for future modifications!