Land Assessments and Investigations

ENW performs a wide range of geotechnical analyses including settlement, slope stability, and seepage. We have a large selection of computer software and maintain access to several online databases, enabling ENW to efficiently analyze alternatives to optimize designs and provide our clients with cost-effective geotechnical analysis.

Geologic Assessment

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

• Ground water 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

• Slope Stability and Landslide Mitigation

  • The stability of natural and man-made slopes is dependent on a number of factors, including site geology, slope inclination, strength of soils, construction activities, and ground shaking. ENW utilizes state-of-the-art computer programs to perform slope stability analyses for both planned and existing slopes, as well as to provide repair recommendations for slope failures. Typically, these analyses are conducted based on laboratory tests performed on samples obtained from exploratory excavations, such as wire-line rock coring, mud rotary borings and test pits. ENW is experienced with the deployment of various geophysical tools to map the internal structure of the landslide and characterize the water content in the landslide body, such as ground penetrating radar, seismic studies (reflection and refraction), inclinometers and tensiometers, and interpretation of acquired geophysical data.