SUE

Out of sight, but not out of mind. Our SUE teams go above and beyond to manage what's below.

Resources

Knowing What's Below Saves Time and Money

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Subsurface Utility Engineering (SUE) services help project designers manage risks associated with surprise encounters with buried utilities which can bring construction projects to a complete halt. These services have been proven to reduce construction costs related to the risks associated with inaccurate or incomplete utility information.

We use state-of-the-art geophysical sensing equipment for identifying, designating, locating and mapping existing and abandoned utility infrastructure. Techniques include magnetic, sonic, and acoustic technologies, ground penetrating radar, and radio frequency detection. By partnering with SAM-CS™, a wholly owned subsidiary of SAM, we can also provide a full range of services for vacuum excavation services. SAM-CS, maintains state-of-the-art Vacuum Excavation equipment for “safe dig” operations to safely uncover and measure the exact horizontal and vertical position of the utility.

Our experienced and highly trained staff includes engineers, surveyors, and technicians have successfully provided all four SUE quality level services to state, municipal, and private clients.

Quality Level D: Record Research/Data Collection
At this level, information is derived from records research or oral history. The D level of service can provide a "feel" for the overall congestion of utilities, but is often limited in terms of comprehensiveness and accuracy.

Quality Level C: Visible Surface Feature Utility Survey
At Level C, utility surface feature data is obtained from surveying and plotting aboveground utility features. Level C data supplements Level D data and finds omissions and errors in record information.

Quality Level B: Utility Designation
Designation data is collected by thorough applications of appropriate surface geophysical sensing technology. Located utilities are marked, field-tied to project monumentation, and mapped onto plan documents.

Quality Level A: Underground Utility Locating (Test Hole)
For this highest confidence level, precise horizontal and vertical locations of utilities are obtained using nondestructive vacuum equipment excavation to safely expose, measure and map utilities. Level A includes all other quality level tasks and conflict resolution.

All SUE services are performed in accordance with ASCE CI-38-02.

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