Subsurface Utility Engineering

Why SUE?

  • Reduces Costs

  • Reduces Construction Delays

  • Helps designers and engineers in the early development of projects

  • Less downtime due to change orders, utility damages, and claims processing

  • Creates a safer environment

Obtaining reliable subsurface utility information has been difficult in the past. Now, this information is available through the use of an engineering process called Subsurface Utility Engineering.

Scope of Work - The process of developing a written project-specific work plan package that consists of the scope of work, levels of service vs. risk allocation, project schedule and desired project delivery method. This SUE work plan package is agreed upon by the SUE provider and the client, describing the SUE work to be performed.

Designating - The process of using a surface geophysical method or methods to interpret the presence of a subsurface utility and mark its horizontal position on the ground surface or on above-ground surface markers.

Locating - The process of exposing and recording the precise vertical and horizontal location and providing the size and configuration of a utility.

Data Management - The process of surveying, designating, and locating information to project control and transferring it into the client's CADD system, GIS files, or project plans.

Conflict Analysis - The engineering process of using a conflict matrix to evaluate and compare depicted designating information with proposed plans (highway, bridge, drainage, and others) in order to inform all stakeholders of potential conflicts, potential resolutions, and costs to cure.

The American Society of Civil Engineers (ASCE) has developed an important standard of care guideline, the Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data, CI/ASCE 38-02.

This standard guideline describes four quality levels of utility depiction:

Quality Level D

Information derived from existing records or oral recollections.

Quality Level C

Information obtained by surveying and plotting visible above-ground utility features and by using professional judgment in correlating this information to Quality Level D.

Quality Level B

Information obtained through the application of appropriate surface geophysical methods to determine the existence and approximate horizontal position of subsurface utilities.

Quality Level A

Precise horizontal and vertical location of utilities obtained by the actual exposure and subsequent measurement of subsurface utilities, usually at a specific point.

SUE services include:

Geophysical investigations

Multi-Channel Ground Penetrating Radar (MC GPR)

Concrete imaging

Non-destructive vacuum excavation

3D underground mapping

CCTV sewer inspections

Call us today at (432) 213-7444

Be Proactive! Don’t wait for a disaster to update rules, regulations, policies, procedures,
or techniques.