3 days ago
Gujarat company to replace all 33 crest gates of Tungabhadra dam
Munirabad (Koppal): Of the four companies that vied for the tender to replace all 33 crest gates of the Tungabhadra reservoir, the Gujarat-based Hardware Tools and Machinery Project Company emerged as the winner.
The responsibility for replacing the crest gates was entrusted to this company by the Tungabhadra Board, which set a deadline of 15 months for the work to be finished.
The bidding process included Gujarat's Anar Company, Hardware Tools and Machinery Project Company, along with Telangana's Swapna Projects Pvt Ltd and Bekem Infra Projects Private Limited. Following a thorough evaluation of technical bids and documentation by the board committee, Hardware Tools and Machinery Project Company bagged the tender.
According to Basavaraj L, superintendent engineer of KNNL at the Tungabhadra Project Circle in Munirabad, the tender for the replacement of crest gate 19, which was washed away on Aug 10, 2024, was finalised with the Hardware Tools and Machinery Project Company. Additionally, the tender for the remaining 32 crest gates was also awarded to this company. The project is scheduled for completion by the end of June 2026.
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The comprehensive project encompasses all 33 crest gates. The 19th gate replacement costs Rs. 1.6 crore, while the remaining 32 gates had an allocated budget of Rs. 52 crore. The company secured the contract with a competitive bid of Rs. 41.4 crore through the e-tender process, significantly under the allocated budget, sources said.
A technical assessment led by former Central Water Commission chairman AK Bajaj's committee evaluated the dam's condition and provided safety recommendations.
National Dam Safety Authority (NDSA) president Anil Jain's subsequent inspection emphasised maintaining reduced water levels during non-destructive testing.
Hyderabad-based KSNDT Services conducted comprehensive testing on all gates, including ultrasonic and dye penetration tests, presenting their findings on March 25. Their report indicated a 40-50% reduction in gate thickness from original specifications, necessitating complete replacement.
Based on these findings, the Tungabhadra Board opted to replace all gates.
The TB Board declared that, while a complete replacement cannot be achieved this year, maintaining water levels 12 to 15 feet above the spill level will provide an adequate supply for single crop cultivation and drinking purposes. Consequently, it was decided to cap water storage at 80 tmc, compared to the reservoir's total capacity of 101 tmc at a height of 1,626 feet.
