A stretch about 50 metres long on the Rishikesh-Badrinath National Highway near Pursari village is showing signs of land subsidence with cracks appearing on it.
The stretch located between Chamoli and Nandprayag is apparently sinking towards the Alaknanda River. Alarmed by the situation, authorities have warned vehicles coming from the mountainside to go slow.
A police team has been deployed on the affected spot to alert the drivers.
The subsidence-sensitive spot has been demarcated with reflective tapes for the safety of vehicles and drivers are being asked to drive carefully, Traffic Inspector Praveen Alok said.