Geotechnical Engineering Services

• Roadway and bridge geotechnical investigations per ODOT and City specs
• Engineering geology, slope stability, and bedrock evaluations
• Pile foundation drivability and wave equation analysis
• Foundation, earth dam, retaining wall, and lateral support design
• Site feasibility, coffer dam recommendations, and forensic foundation studies
• Transmission line foundation design and field instrumentation

Testing and Inspection Services

• Soil stabilization mix design with chemical additives
• ODOT-certified asphalt mix design (Superpave HVEEM)
• Lab and field test comparisons to construction specs
• Inspections: steel, welding, drilled piers, corrosion, concrete, earthwork
• Pavement and floor slab coring and thickness testing
• Paint thickness, rebar locating, Windsor probe, floor flatness, and anchor pull testing
• Specialty testing and inspections

Engineering and Field Services

• Pavement evaluation with FWD, GPR, DCP, and core analysis
• Pavement design using AASHTOWare ME Design and Darwin tools
• Pressuremeter and rock dilatometer analysis for foundation recommendations
• Field testing: falling weight deflectometer, ground penetrating radar, chain dragging, half-cell testing

Laboratory Testing Services

• Routine soil and rock testing (Atterberg limits, gradation, Proctor, pH, resistivity)
• Strength and durability tests: triaxial, direct shear, unconfined compression, slake durability
• Swelling, consolidation, permeability, resilient modulus, and elastic modulus testing
• CBR, sand equivalency, pinhole erosion, and asphalt extraction and gradation

Drilling Capabilities

• Test hole drilling (3¼” to 8¼” hollow stem, 4½” & 6″ solid stem, mud rotary)
• Shelby tube sampling, split spoon SPT, Texas cone penetrometer
• Drilling/sampling to 140 feet depth
• Installation of monitoring, observation, recovery wells, piezometers, inclinometers, and settlement plates
• Intact bedrock and pavement coring

In-Situ Geotechnical Testing

• Pressure meter, Dutch cone, Marchetti and rock dilatometer testing
• Vane shear, borehole shear, soil resistivity, vibration measurement
• Settlement monitoring and seismic refraction
• Falling weight deflectometer (FWD) and ground penetrating radar (GPR)

HydroVac Potholes Services

• Visual potholing to locate underground utilities
• Water excavation and vacuum cleaning
• Fast, safe, and cost-effective utility potholing