Towns and cities in Kersa include Jimma, the zone’s capital, and Serbo. The altitude of this Woreda ranges from 1740 to 2660 meters above sea level, Serbo found in Jimma woreda extends between 7044.44’ North latitudes and 37000.14’ East longitudes. It is located in the south-western part of Oromia
The site is located over Jimma – Serbo (18km) asphalt road, taking about 3km away from the main road. The community on the site has constructed a traditional watermill by diverting large amounts of water from the Kersa River through a 1200m long rectangular earth canal. The water from the canal, then, passes via a traditional penstock to impinge on a turbine with a head of about 10m. Then, the turbine is used for the watermill rotation.