A major highway linkage in Nagaland has ground to a halt following severe environmental disruptions. Heavy and persistent monsoon rain triggered a massive landslide on a crucial segment of the Changtongya-Longleng road, which is designated as National Highway 702 (NH-702). This environmental emergency has compelled local authorities to redirect traffic, particularly affecting the movement of essential goods and daily commuters. The District Disaster Management Authority (DDMA) has stepped in to manage the unfolding crisis and has issued instructions for light vehicles to bypass the damaged zone.
Inspection of the Damaged National Highway Corridor
To evaluate the intensity of the collapse, a high-level administrative team conducted an on-site inspection. Led by the Deputy Commissioner (DC) of Longleng, W Manpai Phom, the Longleng DDMA officials inspected the impacted zone on Tuesday. This verification drive was executed in coordination with representatives from the neighbouring Mokokchung district administration, which included the sub-divisional officer (Civil) of Changtongya. The joint visit aimed to review the structural damage and coordinate emergency response protocols.
The actual destruction is concentrated on a specific stretch of the highway, precisely between chainage 5+785 and 6+050. The initial collapse occurred during the late hours of September 11, following a night of relentless and torrential downpours. The sheer volume of mud and debris that cascaded onto the asphalt completely blocked the road, immediately bringing all transportation along this vital corridor to a standstill.
Strategic Importance and Ongoing Restoration Efforts
The Changtongya-Longleng highway serves as an indispensable lifeline for the entire Longleng district. It functions as the primary link connecting the district headquarters to other prominent regions within Nagaland. Any disruption here directly halts the transport of people, emergency medical services, and critical commodities.
In response to the emergency, the National Highways and Infrastructure Development Corporation Limited (NHIDCL), along with its local partner Nithin Sai Construction, commenced clearing operations. Debris removal and restoration work began on September 12. However, the clearing teams have faced continuous challenges. Ongoing monsoon rain and recurrent mudslides at the very same spot have repeatedly washed away progress, making clearing activities highly hazardous and slow.
Alternative Routes and Restricting Heavy Vehicles
Given the precarious conditions on NH-702, the Mokokchung district administration has stepped in to help resolve local logistical hurdles. To keep essential light travel flowing, the DDMA has released a travel advisory recommending an alternate path. Light vehicle drivers are instructed to utilize the Tangha-Kangching-Merangkong road. This temporary bypass is being actively maintained by the disaster management team to ensure it remains passable for small cars.
This incident adds to a series of natural disasters that have battered the region. Since July 19, the district has been trying to recover from previous infrastructure damages caused by constant rain. This latest landslide places a heavy burden on the region's limited disaster response resources.
Furthermore, heavy vehicles have been barred from using the damaged highway since September 12. This long-standing ban on heavier transport poses a serious threat to the local economy, as it could soon lead to shortages of fuel, food, and other crucial commodities that are typically transported via heavy oil tankers and trucks. Residents have been strongly advised by the DDMA to avoid non-essential travel through the affected zones and stay updated on official safety alerts.
