Prior to the start of construction, a subsurface investigation is an effective way to locate existing utilities and other obstructions, map mine voids and similar features or better understand the subsurface integrity. THG deploys multiple mapping techniques to provide a variety of geophysical data, including:
- Utility Locating Techniques
- Ground Penetrating Radar
- Terrain Conductivity Mapping
- Void Detection
- Depth to Bedrock Mapping