Seattle Location: 206-373-1885


California Location: 510-778-2409

Seattle Location: 206-373-1885 | CALL US | California Location: 510-778-2409


Our Services are geotechnical instrumentation and monitoring, surveying and mapping, and environmental inspection works across the country. We can adjust our services to your needs. Our team of PGs and PEs can tackle challenging scopes. You can always count on us to get the job done right from the planning stage to the actual fieldwork.


Geotechnical and Structural Instrumentation and Monitoring

H2G places structural and geotechnical instrumentation and monitoring (SGIM) at the center of its many services. Using different types of sensors and devices such as ATS, settlement sensors, and crack gages, GSIM includes planning, installation, data collection, and analyses. We typically work on road, bridge, and building projects in many parts of the country. 

Instrumentation and monitoring can be custom-made to suit individual project needs. For example, ground and structural monitoring can be accomplished in more than one way such as using a sensor, manual or automated systems.

    Surveying and Mapping

    Surveying and mapping go hand-in-hand with our geotechnical instrumentation and monitoring services. We have been doing surveying using automated total stations for some years.

    Some of our surveying and mapping services include:

      1. Land and Construction Surveying
      2. Topographic Surveying and Mapping
      3.  Surveying and Mapping Using a Drone and GPS
      4. 3D Scanning and Modeling
      5. GIS Mapping
      6. Utility and Improvement Surveying


    Environmental Consulting and Monitoring Services

    We have many years of experience dealing with environmental planning, inspection, and monitoring for construction projects. Some of the typical scopes include SWPPP, TESC inspection, and long-term groundwater monitoring.

    Noise and Vibration Monitoring

    We frequently deploy seismographs and sound level meters to monitor noise and vibration activities in construction projects. We use industry-standard devices and store data indefinitely on a secure server. Data also can be retrieved manually if connection is not available. All devices have automated alarm notification systems.

    Photographic Documentation/Pre-Condition Survey

    To protect all stakeholders from a potential wrongful lawsuit arising from vibratory activities, H2G documents existing conditions of adjacent properties and improvements. H2G also provides digital, web-based photographic documentation. Data is stored on a secure server.

    We have handled photographic documentation for large and small projects such as Sound Transit Water Districts, and City of Seattle projects such as Downtown Redmond Link Extension, Upper LLagas, Indio and South Park Pump Station.

    We look forward to working with you.