Underwood Engineering Inc.

Geotechnical engineering and material testing and inspection solutions

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About the firm

Underwood Engineering Inc. is a family-run engineering practice specializing in geotechnical engineering and materials testing across New Jersey, Pennsylvania, and Delaware since 1978. It provides geotechnical engineering, geo-structural design, construction observation and testing, laboratory material testing, multi-disciplinary inspections, and stormwater management investigation services. Underwood Engineering is backed by a team of certified technicians and licensed engineers with ACI, ICC, DCA, DPMC, Penn DOT, and other professional credentials.

Established
1978
Firm type
Geotechnical Engineering · Materials Testing

Credentials

ACI · ICC · DCA · DPMC · Penn DOT · AASHTO · ASTM · OSHA 30 · OSHA 10 · Troxler Nuclear Density · Radioactive Materials License

People

Patrick UnderwoodPresident

Peter KlausVice President

Capabilities

Geotechnical Engineering

Service website

Geotechnical investigation and geo-structural design services encompassing soil analysis, foundation engineering, soil-structure interaction, and site assessment.

  • Mobilization of Drilling Soil Borings
  • Foundation Design
  • Foundation Evaluation
  • Soil and Structure Interaction
  • Soil Improvement
  • Slope Stability Analysis
  • Pavement Reduction and Design
  • Retaining Wall Design
  • Site Feasibility Studies
  • Geological Site Assessment
  • Settlement Analysis

Construction Observation and Testing

Service website

Third-party construction materials testing and field inspections covering soils, concrete, masonry, and asphalt elements.

  • Soil Testing and Inspection
  • Concrete Testing and Inspection
  • Masonry Testing and Inspection
  • ACI Certified Testing
  • Reinforcing Steel Testing and Inspection
  • Pre-Cast Concrete Fabrication
  • Floor Levelness/Flatness Inspection
  • Clean Fill Testing
  • Concrete and Asphalt Coring
  • Compressive Mortar Cube Testing

Laboratory Material Testing

Service website

AASHTO and ASTM compliant laboratory testing services for soils, concrete, and bituminous materials.

  • Laboratory Control Curve Testing
  • Sieve Analysis
  • Compressive Strength Analysis
  • Bituminous Concrete Testing

Multi-Disciplinary Inspections

Service website

Specialized deep foundation, structural steel, and specialized material inspections.

  • Deep Foundation Inspections
  • Structural Steel Inspections
  • Certified Welding
  • Non-Destructive Steel Testing
  • Fireproofing
  • EIFS Inspection
  • Wood Framing

Stormwater Management Investigation

Service website

Hydrological and soil investigation services to support stormwater engineering and design.

  • Double Ring Infiltration Testing
  • Permeability Testing
  • Hydrometer Analysis
  • Test Pit Inspection
  • Dewatering Evaluations
  • Groundwater Observation
  • Karst Studies and Sinkhole Repair
  • Seasonal High Water Table Estimation

GPR Scanning and Windsor Probe Testing

Service website

Non-destructive evaluation and structural imaging services.

  • GPR Scanning
  • Windsor Probe Testing

Industries

Commercial · Education · Multifamily Residential · Infrastructure

Projects

No projects listed yet.