The incident occurred in the Ghorasahan block in the district. The construction of the bridge was underway under Pradhan Mantri Gram Sadak Yojana with a cost of Rs 1.59 crore. The 40-foot-long bridge was built between the Amwa village of Ghorasahan block and the Chainpur railway station.

Locals claimed the concretisation of the bridge was taking place late on Saturday night. As soon as the concretisation was done, it collapsed.

The bridge was built by Motihari's Dhiraj Construction Private Limited. The foundation stone of the bridge was laid by Rama Devi, former BJP MP of Sheohar, on March 10 this year.

“The bridge is being constructed in two spans. The concretisation of the bridge was done from one side on Saturday. After that, last night dozens of anti-social elements came at the construction site in some vehicles and broke the support of the bridge. Due to this, the bridge collapsed. The administrative officer has been informed about this,” said SN Mandal, Executive Engineer, PWD Dhaka sub-division of East Champaran district.

Meanwhile, the villagers claimed that the material being used in the construction of the bridge was of low quality. The bridge is not being constructed as per the estimate. As a result, it collapsed along with the casting.

“The bridge collapsed due to the irregularities being done in the construction. A high-level investigation is needed here. The engineer is using low-grade materials for the construction of the bridge. This is the reason why the bridge collapsed,” said Deepak Kumar Singh, a villager.

Earlier, a 30-foot-long bridge built on the canal of the Gandak River in Siwan collapsed on Saturday. That bridge was 40-45 years old. People said that the bridge collapsed due to soil cutting during the cleaning of the canal.

Last week, another bridge built with an estimated cost of Rs 12 crore in the Sikti block of Araria collapsed before its inauguration.