A Bailey bridge over the Arun River connecting Num and Seduwa in Makalu Rural Municipality of Sankhuwasabha collapsed on Saturday morning, disrupting vehicular movement along the route to Makalu Base Camp.

Deputy Superintendent of Police Kumar Prasad Mainali of the District Police Office said that the bridge gave way while a heavy vehicle carrying construction materials was crossing it.

“The structure suddenly buckled when the truck reportedly reached the middle of the bridge before plunging into the river below. The collapse has brought traffic along the Num–Seduwa road section to a complete halt,” he said.

The road serves as the main access route to the popular trekking destination, Makalu Base Camp, and is widely used by locals, tourists, and vehicles transporting daily essentials to remote settlements.

Police said preliminary reports indicate that no human casualties were reported in the incident.

DSP Mainali said coordination efforts are underway to arrange repairs or establish an alternative crossing. Discussions are also ongoing with Kasuwa Hydropower regarding maintenance and reconstruction responsibilities.