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{{Language-box|english_link= Water Portal / Rainwater Harvesting / Groundwater recharge / Controlled flooding and Spreading basins | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon वाटर पोर्टल / वर्षाजल संचयन / भूजल पुनर्भरण / नियंत्रित बाढ़ और विपथन-फैलाव वाहिकाएं | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=洪水控制/疏导水池 | indonesian_link= Coming soon | japanese_link= Coming soon }}

This is a floodwater harvesting technique called '''controlled flooding''', where the water diverted from a river, with the help of diversion structures and canals, is spread evenly over a large surface area , known as '''spreading basins''', where it is used for recharging groundwater, irrigation, filling ponds, and watering grazing land. The concept is that a thin sheet of water flows over the land but at minimum velocity in order to avoid disturbing the soil cover. This includes [[Irrigation_-_Spate_irrigation|spate irrigation]], but also standard channel irrigation which takes river water via channels to fields.

* [http://web.archive.org/web/20151106164515/https://www.iaea.org/technicalcooperation/documents/Brochures/sust-groundwater.pdf Sustainable Development of Groundwater Resources in Southern and Eastern Africa]. International Atomic Energy Agency.