<p>Koppal, Karnataka: Engineers have been sweating it out to fix a new crest gate of the Pampa Sagar dam on Tungabhadra river in Koppal after the existing one was swept away on August 11.</p>.<p>The replacement of the crest gate started from Wednesday night and is likely to take at least another 24 hours to 48 hours, sources in the Water Resources department said.</p>.<p>The Karnataka government has roped in hydro-mechanical engineer N Kannaiah Naidu from Hyderabad to fix the 19th gate of the dam, the sources added.</p>.Record road congestion hits hard this week as Bengaluru grapples with heavy rains.<p>"Naidu has been camping in Koppal for the past three days. Efforts were on to fix a new gate," an officer told <em>PTI</em>.</p>.<p>Speaking to reporters on Thursday, Naidu said usually the life span of the crest gate of a dam is about 40 years but the one which swept away, had served 30 more years than the average.</p>.<p>After the gate gave way late on Sunday night, all the gates of the dams were opened and water was released to prevent any damage to the dam.</p>.<p>The exercise included reducing the existing water holding capacity 105 TMC to 65 TMC to minimise the stress on the dam and carry out repair work at the earliest.</p>.<p>An alert has been sounded to the districts downstream of Tungabhadra river in Karnataka, Telangana and Andhra Pradesh. </p>
<p>Koppal, Karnataka: Engineers have been sweating it out to fix a new crest gate of the Pampa Sagar dam on Tungabhadra river in Koppal after the existing one was swept away on August 11.</p>.<p>The replacement of the crest gate started from Wednesday night and is likely to take at least another 24 hours to 48 hours, sources in the Water Resources department said.</p>.<p>The Karnataka government has roped in hydro-mechanical engineer N Kannaiah Naidu from Hyderabad to fix the 19th gate of the dam, the sources added.</p>.Record road congestion hits hard this week as Bengaluru grapples with heavy rains.<p>"Naidu has been camping in Koppal for the past three days. Efforts were on to fix a new gate," an officer told <em>PTI</em>.</p>.<p>Speaking to reporters on Thursday, Naidu said usually the life span of the crest gate of a dam is about 40 years but the one which swept away, had served 30 more years than the average.</p>.<p>After the gate gave way late on Sunday night, all the gates of the dams were opened and water was released to prevent any damage to the dam.</p>.<p>The exercise included reducing the existing water holding capacity 105 TMC to 65 TMC to minimise the stress on the dam and carry out repair work at the earliest.</p>.<p>An alert has been sounded to the districts downstream of Tungabhadra river in Karnataka, Telangana and Andhra Pradesh. </p>