Dees & Associates, Inc. provides a full range of geotechnical engineering services, including:

Subsurface investigation by test borings, test pits and cone penetrometer

Field and laboratory testing of soil Engineering analysis, including: bearing capacities, settlements, slope stability, liquefaction, seismic site-specific response, lateral earth pressures, pile capacities, debris flows, lateral spreading, and pavements.

Development of geotechnical design criteria and recommendations for residential, commercial and public buildings; and for roadways, dams, bridges, land development, landslide and debris flow mitigation, groundwater control, pavements, and site drainage.

Construction observation and testing services for quality control, in-place density testing, foundations, drainage, erosion control, tie-backs, helix anchors, geosynthetics, and earthworks.

Forensic analysis of geotechnical failures.

Expert witness testimony.

We specialize in…