Government introduces stricter geological studies, slope monitoring systems
June 24, 2026: The Centre has introduced major changes to National Highway construction norms in hilly regions, aiming to improve safety and reduce the risk of landslides and slope failures. Through a revised framework issued by the Ministry of Road Transport and Highways (MoRTH), contractors will no longer receive incentives for completing projects ahead of schedule in hill areas. The new rules will apply to future National Highway and centrally sponsored road projects in mountainous terrain.
One of the most significant changes requires newly cut slopes to remain stable through at least one monsoon season before permanent road construction and pavement work can begin. Contractors must first complete formation cutting and slope profiling, while payments will now be linked to stabilisation measures such as soil nailing, rock bolting, crack sealing and drainage systems. The ministry said the changes are intended to address slope instability caused by aggressive hill cutting and speed-focused construction practices.
The revised guidelines also mandate advanced geological investigations using LiDAR mapping, drone surveys and InSAR technology to monitor ground movement. Deep-cut sections will require extensive borehole testing before construction approvals are granted. Additionally, agencies such as the National Highways Authority of India (NHAI), NHIDCL and BRO have been directed to incorporate these provisions into future tenders. Separately, NHAI has intensified action against encroachments and illegal parking on highways while ordering audits of traffic monitoring and safety infrastructure following recent directions from the Supreme Court.