The wide range of interrelated services offered by Duffield Associates includes the testing, review, consulting, and construction administration services provided by our Construction Review group. By working collaboratively with our engineers and scientists, and our clients' staff, our field representatives and residents ensure a high caliber of review on every project we undertake. As part of our commitment to excellence, we provide regular in-house technical training and updating for our construction staff. Many of our field representatives hold certifications by ACI and NICET, and our technicians participate in Process Safety Management training.

Services provided include:

• Quality Assurance/Quality Control Review and Testing
  - Subgrade Conditions
  - Fill Placement
  - Reinforcing Steel for Foundation Construction
  - Reinforce Concrete
  - Floor Flatness/Levelness Tolerances
  - Structural Masonry
  - Structural Steel
  - Spray-Applied Fireproofing
  - Pavement Construction
  - Deep Foundation (Piles and Drilled Shaft)
  - Geosynthetic Lining and Retaining Structures
  
  
• Certified Construction Reviewer (CCR)
  
  
• Resident Project Representative (RPR)
  
  
• Specialized Construction Administration
  
  
• AASHTO and USACE Certified Laboratory Testing