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SUBSURFACE UTILITY ENGINEERING

Subsurface Utility Engineering (SUE) is a branch of engineering that seeks to manage the risks associated with unknown or inaccurate underground information within a project’s limits. The goal of SUE is to reduce risks, delays and costs associate with damaged and in-conflict underground features. The Federal Highway Administration (FHWA) has determined that on average, for every $1.00 spend on SUE, nearly $5.00 in project savings can be realized.

Orion Engineers + Constructors provides SUE services to numerous clients, particularly in operating plants and terminals where complete and accurate records are not always available. Our professionals perform SUE in accordance with the specifications outlined in CI/ASCE 38-02, as well as the FHWA SUE Handbook.

Our SUE process can help a facility transform its subsurface conditions from unknown and high risk to well-documented and manageable. There are always unique obstacles that projects must overcome, but risks associated with the damage to, or conflict with, underground utilities does not have to be one of them.

A typical SUE process can involve the following elements:

  • Historical drawing and records research.
  • Topographic, planimetric and geophysical (GPR, RF and
    VLF) surveys.
  • Advanced exploration methods, such as pneumatic or
    hydro excavation (daylighting).
  • Development of accurate and complete master utility
    drawings for inclusion in facility archives.
  • Incorporation of utilities into facility GIS Systems with
    cross-references to facility archives.

Geophysical Exploration with Ground Penetrating Radar (GPR)

Surveying

3D Laser Scanning

Subsurface Utility Engineering / Utility Scans
Void Scans (Crane Pads, Material Loss, etc.)
Structure Scans (Concrete Thickness, Rebar Layout, etc.)
Archaeological Surveys
Mapping and Conflict Resolution

Topographic
• Sitework
   • Earthwork
• Grading

As-Built Documentation
Building Information Modeling (BIM)
Dimensional Analysis
Field Measurement / Data
Collection for New Design
Forensic Analysis
Virtual Simulation