In the clip, people can be heard blaming the use of spurious material for the incident in a village falling under the Madhuban block.
PTI could not independently verify the authenticity of the video.
District magistrate Saurabh Jorwal said he was aware of the incident but asserted that it was “not a bridge, not even a causeway”.
“A sewage line passes through Lohargawan village. Some parts of it were uncovered. As per the information we have, a decision was taken at the Panchayat level a few years back to erect a structure across the drain to help people cross it without difficulty”, the DM told PTI over the phone.
Accordingly, the drain was covered with the makeshift structure, not more than a few feet long, he said.
“As is the case with such unregulated works, mud was used and hence it got washed away when heavy rains battered the area. Nonetheless, we are looking into the matter and will do, at our level, whatever is needed,” added the district magistrate.
Notably, the incident comes in the backdrop of more than a dozen bridges and causeways collapsing in several Bihar districts in the last couple of weeks, prompting authorities to place under suspension at least 15 engineers, even though no casualties have taken place in such mishaps.
The bridge collapse incidents have also led to a political slugfest, with Yadav training his guns at the Nitish Kumar government, but the ruling NDA shifting the blame on RJD, pointing out that the Rural Works portfolio was with the party till it was ousted from power in January this year.