Our mission is to contribute to the success of our clients through technical excellence, practical experience and exceptional client service.

Our mission is to contribute to the success of our clients through technical excellence, practical experience and exceptional client service.

MGA specializes in providing geotechnical engineering design and groundwater hydrology services for clients who manage, maintain, and develop residential, commercial, municipal and industrial properties. 

We provide the following services to both private and public sector clients in the New England area:

Geotechnical Engineering

MGA’s goal is to provide our clients with the most cost effective and technically appropriate foundation system.

We develop comprehensive and site specific subsurface exploration programs to characterize the ground conditions. We then analyze the subsurface conditions and project requirements to determine the appropriate foundation design for the site.

MGA provides geotechnical engineering services for foundations and site development. 

We are experienced in a wide range of geotechnical engineering aspects, including:

  • Subsurface Exploration Programs
  • Shallow Foundations
  • Deep Foundations
  • Retaining Walls
  • Lateral Earth Support
  • Ground Improvement
  • Slope Stability
  • Seismic Design
  • Pavement Design
  • Groundwater Control
  • Bedrock Removal

Subsurface Exploration Programs

Construction Support & Observation

MGA provides construction observation services for various types of geotechnical construction activities.

Our presence on-site allows us to assess the contractor’s compliance with the project plans and specifications. In addition, it allows us to provide engineering input on a timely basis if subsurface conditions are found to vary from those anticipated prior to the start of construction.

MGA’s construction observation services include:

  • Observation of Fill Placement
  • Overexcavation of Unsuitable Soils
  • Compaction Testing
  • Foundation Subgrade Preparation
  • Laboratory Testing of Fill Material
  • Blast Monitoring
  • Pile Installation
  • Pile Load Tests
  • Ground Improvement

Excavation Support & System Design

QA/QC Inspection & Materials Testing Services

Pre-Construction Condition Surveys

MGA performs preconstruction / preblast surveys of adjacent properties.

The objective of our services is to document the existing conditions (interior and/or exterior) of the accessible portions of the structures within a certain distance of those areas of the site where rock blasting is anticipated or construction activities have the potential to cause damage to neighboring structures.

Documentation resulting from the survey is retained for use in defending potential claims of damage to the identified properties from blasting operations.

Soil Testing Services

MGA’s in-house soil laboratory is operated under the supervision of our principals and is an essential part of our geotechnical engineering capabilities.

Laboratory tests are performed to determine soil engineering properties in accordance with industry test methods and standard procedures, such as those recommended by the American Society for Testing and Materials (ASTM) and other procedures. Equipment calibration and verification together with established data recording practices are part of our laboratory Quality Control. MGA also offers our laboratory testing services to other geotechnical consultants and public agencies.

Soil laboratory tests include:

  • Moisture Content
  • Density
  • Atterberg Limits
  • Gradation and Hydrometer
  • California Bearing Ratio (CBR)
  • One-Dimensional Consolidation
  • Hydraulic Conductivity
  • Unconfined Compression
  • Direct Shear
  • Triaxial (UU, CU, CD) Shear Tests
  • Resistivity
  • More specialized testing is provided through a network of outside laboratories