Gorrondona & Associates - SUE Utilities Engineering Sub-Surface Land Surveying

Subsurface Utility Engineering (SUE)

Subsurface Utility Engineering (SUE) is the collection and depiction of above ground and underground utilities, utilizing the four Quality Levels defined in the ASCE publication CA/ASCE 38-02 (Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data). SUE, when used during preliminary phases, allows for early identification of utility conflicts on your project, saving both time and money. SUE can help manage the risks associated with working around underground utilities and minimize the impact that existing underground utilities have on your project.

Benefits of SUE

Subsurface utility engineering benefits both project owners and utility companies in the following ways:

Unexpected conflicts with utilities are eliminated. The exact location of virtually all utilities are known and accurately shown on the construction plans. This significantly:
- Reduces delays caused by redesign when construction cannot follow the original design due to utility conflicts.
- Reduces delays to the contractor during construction caused by cutting, damaging, or discovering utility lines that were not known to be there.
- Reduces subsequent contractor claims for delays resulting from unexpected encounters with utilities.
Unnecessary utility relocations are avoided. Accurate utility information is available to the designers early enough in the development of a project to design around many potential conflicts.
This significantly:
- Reduces costly utility relocations commonly associated with construction projects.
- Reduces delays to the project caused by waiting for utility work to be completed so construction can begin.
- Safety is enhanced. When excavation or grading work can be shifted away from existing utilities, there is less possibility of damage to a utility that might result in personal injury, property damage, and releases of product into the environment.


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