SERVICES

• Preliminary Geotechnical Assessment

For a residential, commercial or industrial property prior to purchasing the property to assist with go-no go decision making

• Site Specific Seismic Studies

Including evaluation of ground shaking, fault rupture, liquefaction, lateral spread, tsunami and seiche hazards

• Design-Level Geotechnical Assessment
  
  

To assist the Architect, Civil Engineer and Structural Engineer in completing the design of your project

• Geologic Hazard and Geologic Assessment Reports

As required by a number of local cities and counties
including Longview, Kelso, Cowlitz County, Skamania County, and Tillamook County

• Retaining Wall Design

Including segmental block walls, boulder walls, MSE walls, gabion basket walls, cantilevered pile walls, and tieback shotcrete walls

• Deep Foundation Design

Including pin piles, driven steel pipe and H-Piles, driven grout piles, auger cast piles, auger cast displacement piles, and drilled piers

• Shoring Design

• Ground Improvement

Recommendations, including Geopiers, surcharging, preloading, deep dynamic compaction, and stone columns

• Concrete and Asphalt Pavement Design
  

• Laboratory Testing

• Existing Pavement Evaluation

• Slope Stability Evaluation and Landslide Repair Design

• Expert Witness and Peer Review Services

• Geotechnical Construction Inspection 

• In-situ Soil Infiltration Testing

For design of stormwater disposal systems including falling head and double-ring infiltrometer test methods

• Deep Foundation Load Testing

• Electrical Resistivity Testing

For design of grounding systems for communication towers and other sensitive facilities