The report assesses landslide risks along two strategic road sections in Shimla, Himachal Pradesh, India. Triggered by intense rainfall, fragile geology, and poor drainage, these areas face frequent shallow and deep-seated landslides.
A 2024 field study identified 15 critical sites, highlighting debris flows, slope failures, and infrastructure damage.
The report recommends Nature-based Solutions (NbS) like vegetation, brush layering, and gabion check dams, alongside structural measures such as retaining walls and soil nailing.
A phased implementation plan—short, medium, and long-term—is proposed, emphasizing drainage management, community involvement, and slope monitoring. The study urges the creation of a Highway Slope Monitoring and Maintenance System to ensure long-term resilience and safety, aligning with CDRI’s goals for disaster resilient infrastructure.
Key points
- Landslides are triggered by rainfall, poor drainage, and fragile geology.
- Fifteen critical sites identified along two Shimla road sections.
- Nature-based solutions recommended: vegetation, brush layering, gabion check dams.
- Structural measures include retaining walls, soil nailing, and drainage systems.
- Phased implementation plan: immediate, medium-term, and long-term actions.
- Highway slope monitoring system proposed for long-term infrastructure resilience.