"A valley bridge on the border road leading to the Indo-China border, 9 km ahead of Malari, has come under threat due to the rapid flow of the river," BRO Commander Colonel Ankur Mahajan said.
A bridge connecting the India-China border at Burans near Malari in Uttarakhand's Chamoli, which broke down on April 17 this year, will soon be reconstructed, officials said on Sunday.