An Oakland resident was struggling with an eroding hillside (after heavy rains) and a high water bill for his fruit tree orchard. The point where his home's drainpipe sent countless gallons of rainwater gushing downhill has now been sculpted into a seasonal "pocket pond". Now, instead of heading for the nearest exit and taking his topsoil along for the ride, rainwater will be slowly seep into the subsoil of the orchard below. This will help to recharge the water table and keep the trees happy for months at a time. What began as a drainage problem has become a garden solution!
Some drought-tolerant rush plants were added, giving this feature a "seasonal wetland" ability to thrive also in the summer months.
This seasonal creek bed receives most of the home's runoff, allowing it to slowly sink into the ground and feed the trees soon to be planted downslope. Cobble stones line the bed, protecting the soil from erosion. This type of feature can flow into other earthworks, and can include seasonal fountains and waterfalls.
This repurposed spa has been sunk into the ground as a pond liner. The roof's runoff is directed into the tub where it is enriched with fish wastes before overflowing to feed banana trees. The entire system is gravity-fed, except for a small, solar-powered aeration pump.