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Reservoirs

Gundlakamma Reservoir

This Project is an irrigation project located in Prakasam district in Andhra Pradesh, India.The dam with 56 million cubic meters live storage capacity is located across the Gundlakamma River. It now supplies 100 acres out of the total envisaged area of 80,000. This reservoir also supplies drinking water to the nearby Ongole city.

Apart from the ancient dam at Cumbum mentioned above, a modern dam called Gundlakamma Reservoir Project has been constructed across the river at Mallavaram, Prakasam District. Some 80 feet (24 m) high, this dam has a capacity of 3,800,000,000 cubic feet (110,000,000 m3) and can irrigate 80,600 acres (330 km2) of land. It will also provide drinking water for the 250,000 people living in Ongole and its surrounding hamlets. The lower part of the river basin is irrigated by Krishna river water through Nagarjuna Sagar right bank canal.

Rallapad Reservoir

This Project was constructed across Manneru River during the year 1951 to 1958 near Rallapadu village, Lingasamudram mandal of Prakasam district. The longitude and latitude of this project are 79° 42’€™30″€ and 15° 02’€™ 30″€. The catchment area of this project is 2202 Sqkm, reservoir capacity is 1105.328 Mcft (31.30 MCum). The proposed utilization of this project is 2000 Mcft. The ayacut contemplated under this project is 16000 Acres. The left canal is of 2.8Km length & irrigates 1500 Acres ayacut. The right main canal is for a length of 20.14Km & it irrigates 14,500 Acres ayacut. There is an old spillway with 10No’€™s vertical gates with size 12.19 X4.57 M. There is a new spillway with 5 Nos radial gates of size12.19X7.62 M. The TBL & FRL of project is +45.415 M & +41.15 M respectively.

The mandals benefitted out of this project are Kondapur mandal of Nellore district, Lingasamudram & Guduluru Mandals of Prakasam district. The Assembly Constituency of this project is Kandukur. There are 6 No’s of Water Users Association and one Project Committee was formed. During operation in pre-monsoon period, old spillway Gate no. 1&3 got snapped and counter weights fallen & damaged. The repair work was completed on 27-01-2009.

There is a gap ayacut of 3,400 Acres under this project. Hence modernization of this project is proposed under JICA loan assistance with an amount of Rs. 23.00 crores. Improvements to head works, C.C lining for main canal and branch canals along with repairs / reconstructions of CD/CM structures are proposed.

Mopadu Reservoir

The Mopadu medium irrigation project was constructed across the Manneru river during the period of 1906 to 1921, is located in Prakasam district. The catchment area of this project is 647.5 Sqkm . The reservoir capacity is 61.00 Mcum (2154.154 Mcft).The proposed utilization of this project is 2000 Mcft . The ayacut contemplated under this project is 12719 Acres. The mandals benefitted under this project are Pamur (M) of Prakasam district and Varikuntapadu and Kondapuram mandals of Nellore district. The TBL & FRL of project is +104.42 M & +100.15 M respectively.

Modernization of this project is proposed under JICA loan assistance with an amount of Rs. 20.00 crores. Under modernization improvements to head works, C.C lining for main canal and branch canals, improvements to system tanks along with repairs / reconstruction of dilapidated CD/CM structures are proposed.