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  2. Utility location - Wikipedia

    en.wikipedia.org/wiki/Utility_location

    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.

  3. Houston tunnel system - Wikipedia

    en.wikipedia.org/wiki/Houston_tunnel_system

    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 ...

  4. Cable locator - Wikipedia

    en.wikipedia.org/wiki/Cable_locator

    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 ...

  5. Underground power line - Wikipedia

    en.wikipedia.org/wiki/Underground_power_line

    An underground power line provides electrical power with underground cables. Compared to overhead power lines, underground lines have lower risk of starting a wildfire and reduce the risk of the electrical supply being interrupted by outages during high winds, thunderstorms or heavy snow or ice storms. An added benefit of undergrounding is the ...

  6. Ground-penetrating radar - Wikipedia

    en.wikipedia.org/wiki/Ground-penetrating_radar

    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 ...

  7. Utility tunnel - Wikipedia

    en.wikipedia.org/wiki/Utility_tunnel

    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 ...

  8. Dallas Pedestrian Network - Wikipedia

    en.wikipedia.org/wiki/Dallas_Pedestrian_Network

    The Dallas Pedestrian Network or Dallas Pedway is a system of grade-separated walkways covering thirty-six city blocks of Downtown Dallas, Texas, United States. [1] The system connects buildings, garages and parks through tunnels and above-ground skybridges. The network contains an underground city of shops, restaurants and offices during ...

  9. Partially underground bunker house for sale in Texas. Check ...

    www.aol.com/partially-underground-bunker-house...

    Like this cool two-bedroom, 2.5-bathroom house that’s on the real estate market in Salado, Texas, for $425,000. Door. “Here’s an amazing one-of-a-kind partially submerged earth-type concrete ...