Detection and Protection: landslide investigation at Thaah Village
Residents of Thaah Village reported repeated landslides and debris accumulation linked to nearby construction and stormwater flows.
Learn MoreFlood Risk & Landslide Assessment – Thaah Village
Unclear sources of debris and flood risk threatened property, safety and long-term land stability.
Project Environmental Workstreams
Watershed and drainage analysis
Catchment and drainage behaviour analysed using WMS.
Hydrologic modelling
Runoff and storm response modelled in HEC-HMS.
Hydraulic flood modelling
Flood extent and depth modelled in HEC-RAS.
Groundwater and geotechnical assessment
Groundwater conditions and ground stability assessed on site.
Debris flow and landslide risk
Debris flow pathways and landslide risk evaluated across the valley.
How Staterra supported the project
Staterra investigated hydrological, hydraulic and geotechnical conditions to identify the causes and develop mitigation strategies. Our investigation spanned field work and in-house research, and included building additional monitoring wells and using drones to track the local topography. Determining the source of the debris meant performing hydrology and hydro-geology assessments, tracking groundwater table change, analysing the debris material itself and comparing real-time data to establish whether the cause was linked to earlier construction activity in the area.
Key Deliverables
Flood hazard and runoff assessments
Hydrology and hydrogeology models
Mitigation and restoration recommendations
Conceptual engineering controls for debris flow management
Impact & outcomes
The study identified the root causes of the debris flows and provided clear mitigation pathways — including conceptual engineering designs for restoration and future erosion control — enabling safer land use and long-term risk reduction for the community.
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