The Bangalore Water Supply and Sewerage Board (BWSSB) is in the process of implementing plans under the Cauvery IV stage II phase water project. Huge fabricating units have been set up at T K Halli, Harohalli and at Jakkasandra to manufacture steel and cement coated pipes 7.5 metres long and with an inner diameter of 2.7 metres for the project.

While the units in T K Halli and Harohalli have already started making the steel pipes, the Jakkasandra unit will start functioning in another few days, officials said. BWSSB has awarded contracts worth Rs 380 crore to different contractors for laying a 67-km-long pipeline from TK Halli to Vajarahalli. N R Madhusudhan | ENS Bangalore, December 25 AT Torekadanahalli (T K Halli), nearly 70 kilometres away from Bangalore, the ambitious plan of bringing in water from the Cauvery river through giant pipes, wide enough to allow an elephant to pass through them, is taking shape.

The Bangalore Water Supply and Sewerage Board (BWSSB) is in the process of implementing plans under the Cauvery IV stage II phase water project. Huge fabricating units have been set up at T K Halli, Harohalli and at Jakkasandra to manufacture steel and cement coated pipes 7.5 metres long and with an inner diameter of 2.7 metres for the project.

While the units in T K Halli and Harohalli have already started making the steel pipes, the Jakkasandra unit will start functioning in another few days, officials said. BWSSB has awarded contracts worth Rs 380 crore to different contractors for laying a 67-km-long pipeline from TK Halli to Vajarahalli.

PIPE FABRICATION PROCESS

The flat 18 mm steel plates supplied by SAIL will be moulded into pipes and welded at the fabricating units. The flat 18 mm steel plates supplied by SAIL will be moulded into pipes and welded at the fabricating units.

The pipes will then be covered with mesh on their exteriors and coated with cement (14 mm thickness). The coating, done through the process called guniting, will add strength to the pipes and will protect them from corrosion.

Guniting involves pumping of cement, mixed with other prescribed materials, onto the exterior of the pipes. The pipes will then be covered with mesh on their exteriors and coated with cement (14 mm thickness). The coating, done through the process called guniting, will add strength to the pipes and will protect them from corrosion.

Guniting involves pumping of cement, mixed with other prescribed materials, onto the exterior of the pipes.

The pipes will later be transported and assembled in the proposed pipeline. The pipes will be coated with cement (14 mm thickness) on the inside after they are joined with the connecting pipes.

The internal cement coating will prevent corrosion, reduce friction and allow the water to travel at high speed. The pipes will later be transported and assembled in the proposed pipeline. The pipes will be coated with cement (14 mm thickness) on the inside after they are joined with the connecting pipes.

The internal cement coating will prevent corrosion, reduce friction and allow the water to travel at high speed.

Though the combined strength of all the four stages of Cauvery water supply projects is 810 MLD, BWSSB is managing to pump 860 MLD of water to the city.

● An additional 50 MLD of water is being pumped to the city from the Thippagondanahalli reservoir.

BWSSB is also supplying an unspecified quantity of water to the newly added areas of the city through more than 2,500 borewells Though the combined strength of all the four stages of Cauvery water supply projects is 810 MLD, BWSSB is managing to pump 860 MLD of water to the city.

●An additional 50 MLD of water is being pumped to the city from the Thippagondanahalli reservoir.

BWSSB is also supplying an unspecified quantity of water to the newly added areas of the city through more than 2,500 borewells