Locations
Geo-Technology Associates, Inc., Philadelphia, PA
Strategically located between our Quakertown, PA, and Newark, DE offices, our Philadelphia location enhances our ability to deliver responsive, high-quality Construction Observation and Material Testing (COT) and Special Inspection and Geotechnical and Environmental services across the region. We support a broad range of mixed-use residential, commercial, industrial, energy, and institutional projects, providing practical, value-driven solutions to complex site and construction challenges.
Our Services
Geotechnical Services
- Geotechnical Feasibility Studies
- Subsurface Exploration
- Shallow and Deep Foundation Analysis and Design
- Excavation and Monitoring Services
- Retaining Wall Design/Recommendations
- Slope Stability Analysis/Design
- Ground Improvement Design/Recommendations
- Seismic Analysis
- Groundwater Control Design
- Geotechnical Instrumentation and Monitoring
- Seepage Analysis
- Flexible and Rigid Pavement Analysis/Design
- Geotechnical Laboratory Testing
Construction Observation and Materials Testing / Special Inspection Services
- Engineering Consultation
- Mass Grading – Subgrade Soil Evaluations and Structural Fill Testing
- Utilities – Trench Backfill Observations and Testing
- Retaining Wall Testing, Inspections, and Certifications
- Bituminous Concrete – Asphalt
- PaDOT-Certified Personnel
- Foundations – Soil Bearing Capacity of Footings
- Laboratory Services
- Concrete Sampling
Chapter 17 Special Inspections
- Deep Foundations and Helical Pile Foundations
- Exterior Insulation and Finish Systems (EIFS)
- High Strength Bolting and Steel Frame Installation
- Post-Installed Concrete Anchors
- Pre-Cast Concrete Erection
- Pre-Cast Concrete Fabrication
- Pre-Stressed Concrete
- Reinforced Concrete
- Soils
- Spray Fire-Resistant Materials and Mastic and Intumescent Fire-Resistant Coatings.
- Structural Masonry
- Structural Steel Fabrication
- Test Safe Load, In-Situ Load Tests and Preconstruction Load Testing
- Underpinning
- Welding
- Wood Construction
GTA provided Construction Observation and Materials Testing (CoMET) and Special Inspection services for a 282,255-square-foot industrial warehouse at 3060 South 61st Street in Philadelphia from December 2024 through June 2025. Services included footing subgrade evaluations using DCP testing and probing, along with inspections of reinforcing steel, concrete, masonry, and structural steel. GTA also monitored slab and foundation preparation and performed site work observation such as grading, soil evaluation, structural fill testing, utility backfill verification, and asphalt and concrete sampling. Throughout the project, GTA’s team delivered testing, documentation, and oversight to help ensure construction generally conformed to project plans, specifications, and approved submittals.
Featured Projects
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3060 South 61st Street, Phila., PA.
Phila., PA.
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Germantown Academy, Fort Washington, PA
Fort Washington, PA
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109-111 Pine Street, Phila., PA.
Phila., PA.
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Piazza Alta – Phase 2 (Buildings B & G), Philadelphia, PA
Philadelphia, PA
Memberships & Associations
Our Team
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With more than 600 engineers, geologists, scientists, technicians, and support personnel, GTA has the expertise, resources, and experience to meet your needs. Reach out to us today.
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