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  2. Utility location - Wikipedia

    en.wikipedia.org/wiki/Utility_location

    Utility locating 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. 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.

  4. Ground-penetrating radar - Wikipedia

    en.wikipedia.org/wiki/Ground-penetrating_radar

    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 ( UHF / VHF frequencies) of the radio spectrum , and detects the reflected signals from subsurface structures.

  5. New York City water supply system - Wikipedia

    en.wikipedia.org/wiki/New_York_City_water_supply...

    New York City's water system consists of aqueducts, distribution pipes, reservoirs, and water tunnels that channel drinking water to residents and visitors. A comprehensive raised-relief map of the system is on display at the Queens Museum of Art. Until the early 21st century, some places in southeastern Queens received their water from local ...

  6. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    A raw water collection point (above or below ground) where the water accumulates, such as a lake, a river, or groundwater from an underground aquifer. Raw water may be transferred using uncovered ground-level aqueducts, covered tunnels, or underground water pipes to water purification facilities. Water purification facilities.

  7. Directional boring - Wikipedia

    en.wikipedia.org/wiki/Directional_boring

    Directional boring machine. 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.

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