A pillar on Sanjay Setu sunk partially disrupting the traffic movement going from Bahraich towards Lucknow on Tuesday.
The traffic movement came to a standstill after the pillar number five of Sanjay Setu sunk by 6 inches.
The bridge situated on the Bahraich-Lucknow road, built over River Ghagra, connects Gonda, Balrampur to the state capital.
A team of highly experienced engineers is present at the spot conducting an investigation.
A bridge built over Assi Ganga river on Gangotri highway in Uttarakhand collapsed on April 1 this year.