Efforts on to plug breach

DECCAN CHRONICLE
Published Sep 22, 2015, 12:10 pm IST
Updated Mar 27, 2019, 6:15 pm IST
Official says they will restore the Tammileru aqueduct within a few days
Repair works are in progress at Janampeta in West Godavari on Monday where the retaining wall of Polavaram right main canal collapsed on Saturday. (Photo: DC)
 Repair works are in progress at Janampeta in West Godavari on Monday where the retaining wall of Polavaram right main canal collapsed on Saturday. (Photo: DC)

Rajahmundry: Restoration works on br-eached portion of Tammileru aqueduct goes at brisk pace at Janampeta village of Pedavegi mandal in West Godavari to facilitate flow of Godavari water from Tadipudi and Pattiseema lift irrigation projects into Krishna delta area.

The irrigation authorities maintain that unexpected heavy flow of wa-ter from Tadipudi sche-me following heavy rainfall, on Tammileru aqueduct resulted in a small portion of it caved in, in the late hours on Satur-day. In order to facilitate flow of Godavari water through Polavaram’s Ri-ght Main Canal to Kris-hna river, the irrigation authorities have arran-ged a water inlet from Tadipudi lift irrigation scheme’s main canal at 10.45 km to RMC at 14.85 km.

As part of a trail run, Godavari water from Tadipudi scheme was rel-eased into RMC on Aug-ust 28 and this water reached the Krishna river at Ibrahimpatnam on September 16 facilitating interlinking of Godavari river with Krishna.

To facilitate completi-on of Polavaram’s RMC, the authorities have sta-rted construction of an aqueduct across Tamm-ileru drain at a height of nine meters from the bed of the drain.

Though the width of aqueduct is 45 meters, the authorities initially constructed 15 meters structure on the centre leaving space of 15 met-ers each on its right and left sides free to be constructed later. Under the influence of rain water in the last few days, hea-vy water started collecting in Tadipudi scheme from various sources. At the same time, nearly 350 cusecs of water was rel-eased from Pattiseema lift scheme into RMC on September 18 and the water has to travel nearly 107 km to reach Tammileru aqueduct.

The irrigation authorities maintain that the continuous rainfall helped the bed of RMC to turn wet and facilitate free flow of water by avoiding seepage.

With heavy flow of water coming from multiple sources entering the small passage on aqueduct, a small portion of it was caved in.

Following the development, the authorities allowed the water to enter into Tammileru drain immediately and later, water was stopped from entering the aqueduct to carry out the repair works and restore it.

Polavaram RMC superintending engineer B. Srinivas Yadav said, "Due to heavy flow of flood water, the central trough on temporary structure on Tammileru aqueduct was affected. This resulted in no damage to permanent structure. We will restore the aqueduct to make RMC through in a few days."
 

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Location: Andhra Pradesh




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