A portion of the Sealdah flyover, between its crossings with MG Road and Beleghata Road, will be closed to traffic from Friday night till Tuesday morning to facilitate the construction of the Bowbazar-bound tunnel of East-West Metro, police said.

The tunnel-boring work for the Metro corridor — which, once fully functional, will link Sector V in Salt Lake with Howrah Maidan — had resumed in June after remaining suspended for over three months because of Covid-19.

“The part of the Sealdah flyover between the two crossings will be blocked from 11pm on January 15 till 6am on January 19,” an officer said. “Tram services will remain suspended on APC Road, MG Road, College Street, Bidhan Sarani, Nirmal Chunder Street, Lenin Sarani and Rafi Ahmed Kidwai Road during the period.”

While Sealdah station-bound vehicles from Entally will face no restriction, those from Shyambazar in the north along APC Road will be diverted from the Rajabazar intersection to Narkeldanga Main Road. The vehicles will reach the Phoolbagan crossing through Narkeldanga Main Road and move down RL Mitra Road and Beleghata Main Road before reaching Sealdah.

“A detailed diversion plan has been prepared and all bus and minibus operators are being informed through a series of meetings with their respective unions,” said an officer of Calcutta police.

According to the blueprint, buses and minibuses of at least six routes plying along AJC Bose Road and headed for north Calcutta will be terminated at a stand on AJC Bose Road, near the NRS Medical College and Hospital.

Buses and minibuses headed for Sealdah, Beleghata, Phoolbagan and other parts and moving along MG Road will be diverted via APC Road and Narkeldanga Main Road. These vehicles will have to return along Narkeldanga Main Road, APC Road and MG Road.

Cars and other small vehicles moving towards Shyambazar along AJC Bose Road will be diverted from the Moulali crossing towards SN Banerjee Road. They will ply down Central Avenue, Colootola Street or Vivekananda Road.

Some smaller vehicles bound for Sealdah from the Exide crossing and headed towards Rajabazar via Sealdah will ply through Central Avenue.

Buses and minibuses moving along APC Road with their terminating points further south of Moulali will be diverted from the Maniktala crossing via Vivekananda Road, Amherst Street, BB Ganguly Street and Lenin Sarani.

A part of the Sealdah flyover was earlier closed to traffic for three days from October 2.