Krishna River
Krishna Basin

Drainage Basin of Krishna

The Krishna Basin extends over an area of 258,948 km (99,980 sq mi) which is nearly 8% of the total geographical area of the country. This large basin lies in the states of Karnataka (113,271 km), Telangana, Andhra Pradesh (76,252 km) and Maharashtra (69,425 km). It is the fifth largest basin in India.

Most of this basin comprises rolling and undulating country, except for the western border, which is formed by an unbroken line of the Western Ghats. The important soil types found in the basin are black soils, red soils, laterite and lateritic soils, alluvium, mixed soils, red and black soils and saline and alkaline soils.

An average annual surface water potential of 78.1 km has been assessed in this basin. Out of this, 58.0 km is utilizable water. Culturable area in the basin is about 203,000 km (78,000 sq mi), which is 10.4% of the total cultivable area of the country. As the water availability in the Krishna River was becoming inadequate to meet the water demand, Godavari River is linked to the Krishna River by commissioning the Polavaram right bank canal with the help of Pattiseema lift scheme in the year 2015 to augment water availability to the Prakasam Barrage in Andhra Pradesh. The irrigation canals of Prakasam Barrage form part of National Waterway 4. The Krishna-Godavari delta known as "Rice Granary of India. "
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