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Utility locator tool in use (Perry, Oklahoma, 2011) Utility location is the process of identifying and labeling public utility mains that are underground. These mains may include lines for telecommunication, electricity distribution, natural gas, cable television, fiber optics, traffic lights, street lights, storm drains, water mains, and wastewater pipes.
Cable locator. A cable locator or cable avoidance tool ( CAT) is an instrument used for detecting the presence and approximate location of buried services in advance of undertaking excavation works. It aims to avoid accidents while excavating. [1] A number of types of detecting technology can be employed by such instruments, including use of ...
Vacuum excavation is best used in conjunction with conventional underground (one-call) locating services. Because of a preponderance of overlapping buried utility lines, locating devices often miss some of the buried utilities on a site or cannot completely or accurately mark a site.
Directional boring. Directional boring, also referred to as horizontal directional drilling ( HDD ), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig.
Underground Service Alert ( USA) is a non-profit mutual benefit organization that links the excavation community and the owners of underground lines. Underground Service Alert has two separate call centers for California: Underground Service Alert of Northern California (USA North) and Underground Service Alert of Southern California (USA South ...
Engineering applications include nondestructive testing (NDT) of structures and pavements, locating buried structures and utility lines, and studying soils and bedrock. In environmental remediation , GPR is used to define landfills, contaminant plumes, and other remediation sites, while in archaeology it is used for mapping archaeological ...
8-1-1. 8-1-1 is an N-1-1 telephone number in Canada and the United States. In Canada, the number is used for non-urgent health services. In the United States, 8-1-1 provides a uniform national phone number to access local utility location services.
It is used during project development and is a major component of Subsurface Utility Engineering (SUE). The second concept is how to specify the recording of utilities exposed during their installation or during maintenance/repair operations so that future records are reliable. It is used primarily during utility installation.
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