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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 ...
Coordinates: 29.75°N 95.37°W. A tunnel in the west part of the downtown loop. The Houston tunnel system is a network of subterranean, climate-controlled, pedestrian walkways that links 95 full city blocks 20 feet (6 m) below Houston 's downtown streets. It is approximately six miles (9.7 km) long. [1] There are similar systems in Chicago ...
A utility tunnel, utility corridor, or utilidor is a passage built underground or above ground to carry utility lines such as electricity, steam, water supply pipes, and sewer pipes. Communications utilities like fiber optics, cable television, and telephone cables are also sometimes carried. One may also be referred to as a services tunnel ...
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Ground-penetrating radar ( GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. [1] This nondestructive method uses electromagnetic radiation in the microwave band ...
The purpose of the drill is to create a tunnel under surface obstructions. First, the operator surveys the area and the obstacle (road, sidewalk, driveway). Utility locators must supervise any underground work, and the path most clear of utilities is chosen to send the tool through. The first hole is dug on one side of the obstacle.
Poland Tunnel, abandoned pedestrian tunnel between the ghost towns of Poland and Walker, south of Prescott. Mule Pass Tunnel, 1,400-ft long, road SR 80, Bisbee, Arizona. Deck Park Tunnel, 2,887-ft twin road tunnels, Interstate 10, Phoenix. Queen Creek Tunnel, 1,200-ft road US 60, just east of Superior.