Slope Stability

Site Characterization

Retaining Walls and Shoring


Numerical Modeling

Ground Improvement

Earthquake Engineering



GEC performs shallow and deep foundation designs for bridges, piers, wharfs, commercial and residential structures.


Shallow Foundations

  • Spread footings
  • Mat slabs
  • Foundation repair
  • HUD foundations


Deep Foundations

  • Driven pile
  • Drilled shafts
  • Augercast piles
  • Pin piles
  • Drivability analysis
  • Lateral pile analysis
  • Pile load testing
drilled shaft


Copyright c GEC 2016

Seattle, Bellevue, Kent

24 Roy St

Seattle, WA 98109

PH: (206) 395-3201


Salem, Portland, Vancouver

2755 Commercial Street

Salem, Oregon

PH: (503) 967-9240