Experienced staff provides observation and testing services during construction of a wide range of projects including but not limited to residential, commercial, retail, industrial, institutional, municipal, and mixed-use projects throughout the mid-Atlantic region.
Based upon our experience with the soil conditions throughout the regions, along with our familiarity with personnel, documentation, and report requirements of the local agencies, GTA can quickly formulate resolutions to problems to minimize the impact on the proposed construction. GTA is accredited by AASHTO Materials Reference Laboratory (AMRL), Cement and Concrete Reference Laboratory (CCRL), U.S. Army Corps of Engineers (SACE), and Washington Area Council of Engineering Laboratories (WACEL) with capabilities to provide the full range of soils, asphalt, concrete, masonry, geosynthetics, structural steel field and laboratory sampling and testing.
Specific services include:
Site Earthwork Observation & Testing - Subsurface Utilities
- Mass Grading
- Stormwater Management and Infiltration Facilities
- Segmental Retaining Walls
- Mechanically Stabilized Earth (MSE) Walls
- Reinforced Soil Slopes
Foundation Construction Observation - Shallow Foundations (spread footings)
- Deep Foundations
- Driven Piles
- Drilled Shaft Foundations
- Intermediate Foundations - Rammed Aggregate Piers
- Load Testing
Site and Laboratory Materials Testing - Soils and Aggregates
- Concrete
- Asphalt
- Geosynthetics
Structural Observations - Post Tension Structures
- Structural Steel
- Light Gauge Metal Framing (Cold Form Steel)
- Wood Framing
Underdrain and Foundation Drain Construction Observation
Fireproofing Observations
EIFS Observations
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