Subsurface Utility Engineering

Subsurface Utility Engineering (SUE) is an effective means of verifying and mapping the location of existing underground utilities. Collecting data from all available sources enables our licensed professionals to provide clients with the most complete information available. This includes employing a combination of geophysical methods, civil engineering, survey mapping, electromagnetic, ground penetrating radar (GPR) and nondestructive excavation technologies. SUE is a critical part of the design process for new and existing infrastructure projects that saves clients time and cost by helping to eliminate unexpected utility conflicts and unnecessary relocations while enhancing safety during construction.

Our professionals operate in accordance with national ASCE-38-02 Standard Guidelines for the Collection and Depiction of Existing SubSurface Utility Data addressing all four quality levels (A, B, C & D) and combinations thereof. We work with DOTs, airports, railroads, transit, building construction, all branches of government, utility owners and clients throughout the utility coordination process to develop an approach for each unique project type to confirm and resolve utility conflicts.


  • Record Research & Compilation
  • Surface Utility Coordination
  • Geophysical Utility Designation
  • Underground Utility Exposure
  • Comprehensive Data Management
  • Utility Coordination
  • Integrated Survey Deliverables with Existing Utilities
  • 3D Utility Modeling
  • GIS Utility Information
  • Risk Envelope for Utilities
  • Overall Utilities Management
  • Electric Line Locating
  • Gas Line Locating
  • Water & Sewer System Locating
  • Georeferenced Mapping
  • Irrigation System Locating
  • Excavation/Drilling Clearances
  • Cable/Fiber/Phone Locating
  • Concrete Evaluations
  • Concrete Reinforcement/Conduit Mapping