Geologic Hazard Evaluations

Geologic hazard evaluations are incorporated into geologic studies and may also be performed as a site-specific objective. Geologic hazard evaluations range from preliminary assessments to detailed analysis of hazards and design of mitigation measures.

Geologic hazard evaluations address:

  • Faulting and seismic hazards, including ground shaking, ground rupture and liquefaction potential
  • Landslide, mudflow and rockfall potential
  • Groundwater conditions and potential for flooding
  • Erosion potential
  • Compressible peat and organic soil deposits
  • Expansive soils
  • Geologic hazard assessments for school, hospital or other critical facilities projects

Arroyo Avenue Landslide

Ninyo & Moore provided geotechnical consulting services during and after the Arroyo Avenue landslide of January and February, 2005. The landslide involved 6 homes that were ultimately demolished and threatened 11 more during heavy winter rains. Ninyo & Moore was on site after movement began to provide the local city interim plans to slow or halt the landslide movement. Recommendations included...

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