Chennai: The Chennai Metro Rail limited (CMRL) has floated tender for detail design consultant (DDC) for about 12 Km stretch in corridor from light house to Meenakshi College with 12 underground stations. For the detail designed consultant (DDC) for a part of corridor-4 which consists 167.55 km.
A Metro Rail official said that, “we are floating tenders for a detail design consultant much early as it was the final design of the time. When we built the 45 Km phase-I. It was one of the lessons we learnt while implementing the project.
The consultant is planning to draw a final design of the alignment, the underground stations which will also include the station box, ramps linking underground with elevated stations, other features in the station like ventilation and air-conditioning system, mechanical, electrical, and plumbing works as the track along the alignment.
The official also mentions that the conceptual design will be made first followed by a preliminary and a final design. The first design should take at least six to seven months.
Total time to complete the contract for the DDC is six years. The detail design consultant (DDC) will be helpful in assisting contractors during the construction stage. The line of phase-2 from light house and Meenakshi college in corridor will be ready in 6 year.
The phase-2 project which has three corridors including corridor-4 covering 17.1 km from light house to CMBT with 20 underground stations.The detailed project report will also help in extending the line to another 15 km from CMBT to Poonamallee whose estimated cost is Rs 3, 850 crore. The total cost of phase-2 project is Rs 85047 crore.
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