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 Utility
Designation is a systematic process of identifying and locating
underground utilities using various electronic detection devices.
Electromagnetic and radiofrequency locators such as hand held pipe
locators, ground penetrating radar, and magnetic locators are the
most commonly used locators.
The majority of all utilities are designated using a transmitter to
introduce a regulated frequency into a facility and the surface
location painted or flagged using a walk over hand held detector.
The resultant frequency detected on the surface is an approximate
location and should be positively identified using non-mechanical
excavation such as non-destructive vacuum excavation.
Ground Penetrating Radar is a common tool used to locate buried
structures and facilities. GPR is frequently used to locate buried
tanks, chambers and non-metallic utilities.
There are numerous methods and techniques utilized to designate
utilities, but improper equipment and techniques can result in miss
marking lines.
BSIE uses numerous designating technologies to properly locate and
mark facilities with paint or flagging. BSIE will then survey locate
all designation markings to document the results electronically.
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