The Airports Authority of India (AAI) and Metro Railway have collaboratively initiated a significant infrastructure project aimed at enhancing Kolkata’s urban transit system. They have invited bids for the extension of the Yellow Line, also known as Line-4, covering a 6.8 km stretch from Biman Bandar (Kolkata Airport) to Birati. This project, estimated at ₹1,330 crore, includes the construction of two new underground stations: Birati and Michael Nagar.
Project Scope and Specifications
The extension is part of a broader 11.2 km plan to expand the Yellow Line from Noapara to Barasat, passing through the airport. The current tender focuses on the following key components:
- Metro Tunnel Construction: A 3.6 km underground tunnel will be constructed using the RCC box-pushing method, which allows for tunnel creation without the need for traditional tunnel boring machines.
- Station Development: The Birati station will be developed using the cut-and-cover method, involving excavation and construction within a pre-dug trench, which is then covered to restore the surface. Both Birati and Michael Nagar stations will feature modern amenities to enhance commuter experience.
- Comprehensive Civil Works: The project encompasses architectural finishing, installation of firefighting systems, water supply, sanitary installations, drainage, and Building and Lift Technology (BLT) works. Additionally, it includes the implementation of Electrical and Mechanical (E&M) services, Environmental Control Systems (ECS), Tunnel Ventilation Systems (TVS), and a 750 V DC traction system with a composite aluminium third rail for power supply.
Strategic Importance
This extension aims to significantly improve connectivity in Kolkata’s northeastern suburbs, facilitating smoother transit from Noapara to Barasat via the airport. By providing a direct metro link to the airport, the project is expected to:
- Enhance Commuter Convenience: Offering a seamless travel option for passengers to and from the airport.
- Reduce Traffic Congestion: Alleviating pressure on existing road networks by providing an efficient alternative.
- Promote Economic Growth: Stimulating development in the adjoining areas through improved accessibility.
Regulatory Approvals and Progress
The project has overcome significant regulatory hurdles, particularly concerning construction near the airport. The AAI has granted necessary clearances, including the approval for the use of 18-meter tall cranes required for the construction of the Airport-New Barrackpore section. This approval has resolved previous height restriction issues, allowing construction activities to proceed outside the airport perimeter.
However, discussions are ongoing to address challenges related to the proposed New Barrackpore station, which is situated near a major runway’s flight path. Ensuring that construction and subsequent operations do not interfere with airport activities is a priority, and solutions are being actively explored.
Project Timeline and Contractor Responsibilities
The selected contractor will be entrusted with a comprehensive scope of work, including design, procurement, and construction of the tunnel and stations. Responsibilities encompass architectural finThe Airports Authority of India (AAI)
Metro Railway have collaboratively initiated a significant infrastructure project aimed at enhancing Kolkata’s urban transit system. They have invited bids for the extension of the Yellow Line, also known as Line-4, covering a 6.8 km stretch from Biman Bandar (Kolkata Airport) to Birati. This project, estimated at ₹1,330 crore, includes the construction of two new underground stations: Birati and Michael Nagar.
Project Scope and Specifications
The extension is part of a broader 11.2 km plan to expand the Yellow Line from Noapara to Barasat, passing through the airport. The current tender focuses on the following key components:
- Metro Tunnel Construction: A 3.6 km underground tunnel will be constructed using the RCC box-pushing method, which allows for tunnel creation without the need for traditional tunnel boring machines.
- Station Development: The Birati station will be developed using the cut-and-cover method, involving excavation and construction within a pre-dug trench, which is then covered to restore the surface. Both Birati and Michael Nagar stations will feature modern amenities to enhance commuter experience.
- Comprehensive Civil Works: The project encompasses architectural finishing, installation of firefighting systems, water supply, sanitary installations, drainage, and Building and Lift Technology (BLT) works. Additionally, it includes the implementation of Electrical and Mechanical (E&M) services, Environmental Control Systems (ECS), Tunnel Ventilation Systems (TVS), and a 750 V DC traction system with a composite aluminium third rail for power supply.
Strategic Importance
This extension aims to significantly improve connectivity in Kolkata’s northeastern suburbs, facilitating smoother transit from Noapara to Barasat via the airport. By providing a direct metro link to the airport, the project is expected to:
- Enhance Commuter Convenience: Offering a seamless travel option for passengers to and from the airport.
- Reduce Traffic Congestion: Alleviating pressure on existing road networks by providing an efficient alternative.
- Promote Economic Growth: Stimulating development in the adjoining areas through improved accessibility.
Regulatory Approvals and Progress
The project has overcome significant regulatory hurdles, particularly concerning construction near the airport. The AAI has granted necessary clearances, including the approval for the use of 18-meter tall cranes required for the construction of the Airport-New Barrackpore section. This approval has resolved previous height restriction issues, allowing construction activities to proceed outside the airport perimeter.
However, discussions are ongoing to address challenges related to the proposed New Barrackpore station, which is situated near a major runway’s flight path. Ensuring that construction and subsequent operations do not interfere with airport activities is a priority, and solutions are being actively explored.
Project Timeline and Contractor Responsibilities
The selected contractor will be entrusted with a comprehensive scope of work, including design, procurement, and construction of the tunnel and stations. Responsibilities encompass architectural finThe Airports Authority of India (AAI).
Metro Railway have collaboratively initiated a significant infrastructure project aimed at enhancing Kolkata’s urban transit system. They have invited bids for the extension of the Yellow Line, also known as Line-4, covering a 6.8 km stretch from Biman Bandar (Kolkata Airport) to Birati. This project, estimated at ₹1,330 crore, includes the construction of two new underground stations: Birati and Michael Nagar.
Project Scope and Specifications
The extension is part of a broader 11.2 km plan to expand the Yellow Line from Noapara to Barasat, passing through the airport. The current tender focuses on the following key components:
- Metro Tunnel Construction: A 3.6 km underground tunnel will be constructed using the RCC box-pushing method, which allows for tunnel creation without the need for traditional tunnel boring machines.
- Station Development: The Birati station will be developed using the cut-and-cover method, involving excavation and construction within a pre-dug trench, which is then covered to restore the surface. Both Birati and Michael Nagar stations will feature modern amenities to enhance commuter experience.
- Comprehensive Civil Works: The project encompasses architectural finishing, installation of firefighting systems, water supply, sanitary installations, drainage, and Building and Lift Technology (BLT) works. Additionally, it includes the implementation of Electrical and Mechanical (E&M) services, Environmental Control Systems (ECS), Tunnel Ventilation Systems (TVS), and a 750 V DC traction system with a composite aluminium third rail for power supply.
Strategic Importance
This extension aims to significantly improve connectivity in Kolkata’s northeastern suburbs, facilitating smoother transit from Noapara to Barasat via the airport. By providing a direct metro link to the airport, the project is expected to:
- Enhance Commuter Convenience: Offering a seamless travel option for passengers to and from the airport.
- Reduce Traffic Congestion: Alleviating pressure on existing road networks by providing an efficient alternative.
- Promote Economic Growth: Stimulating development in the adjoining areas through improved accessibility.
Regulatory Approvals and Progress
The project has overcome significant regulatory hurdles, particularly concerning construction near the airport. The AAI has granted necessary clearances, including the approval for the use of 18-meter tall cranes required for the construction of the Airport-New Barrackpore section. This approval has resolved previous height restriction issues, allowing construction activities to proceed outside the airport perimeter.
However, discussions are ongoing to address challenges related to the proposed New Barrackpore station, which is situated near a major runway’s flight path. Ensuring that construction and subsequent operations do not interfere with airport activities is a priority, and solutions are being actively explored.
Project Timeline and Contractor Responsibilities
The selected contractor will be entrusted with a comprehensive scope of work, including design, procurement, and construction of the tunnel and stations. Responsibilities encompass architectural fin
The Airports Authority of India (AAI) and Metro Railway have collaboratively initiated a significant infrastructure project aimed at enhancing Kolkata’s urban transit system. They have invited bids for the extension of the Yellow Line, also known as Line-4, covering a 6.8 km stretch from Biman Bandar (Kolkata Airport) to Birati. This project, estimated at ₹1,330 crore, includes the construction of two new underground stations: Birati and Michael Nagar.
Project Scope and Specifications
The extension is part of a broader 11.2 km plan to expand the Yellow Line from Noapara to Barasat, passing through the airport. The current tender focuses on the following key components:
- Metro Tunnel Construction: A 3.6 km underground tunnel will be constructed using the RCC box-pushing method, which allows for tunnel creation without the need for traditional tunnel boring machines.
- Station Development: The Birati station will be developed using the cut-and-cover method, involving excavation and construction within a pre-dug trench, which is then covered to restore the surface. Both Birati and Michael Nagar stations will feature modern amenities to enhance commuter experience.
- Comprehensive Civil Works: The project encompasses architectural finishing, installation of firefighting systems, water supply, sanitary installations, drainage, and Building and Lift Technology (BLT) works. Additionally, it includes the implementation of Electrical and Mechanical (E&M) services, Environmental Control Systems (ECS), Tunnel Ventilation Systems (TVS), and a 750 V DC traction system with a composite aluminium third rail for power supply.
Strategic Importance
This extension aims to significantly improve connectivity in Kolkata’s northeastern suburbs, facilitating smoother transit from Noapara to Barasat via the airport. By providing a direct metro link to the airport, the project is expected to:
- Enhance Commuter Convenience: Offering a seamless travel option for passengers to and from the airport.
- Reduce Traffic Congestion: Alleviating pressure on existing road networks by providing an efficient alternative.
- Promote Economic Growth: Stimulating development in the adjoining areas through improved accessibility.
Regulatory Approvals and Progress
The project has overcome significant regulatory hurdles, particularly concerning construction near the airport. The AAI has granted necessary clearances, including the approval for the use of 18-meter tall cranes required for the construction of the Airport-New Barrackpore section. This approval has resolved previous height restriction issues, allowing construction activities to proceed outside the airport perimeter.
However, discussions are ongoing to address challenges related to the proposed New Barrackpore station, which is situated near a major runway’s flight path. Ensuring that construction and subsequent operations do not interfere with airport activities is a priority, and solutions are being actively explored.
Project Timeline and Contractor Responsibilities
The selected contractor will be entrusted with a comprehensive scope of work, including design, procurement, and construction of the tunnel and stations. Responsibilities encompass architectural fin.
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