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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. Wrights tunnel - Wikipedia

    en.wikipedia.org/wiki/Wrights_Tunnel

    The Wrights Tunnel (also known as the Summit Tunnel, Tunnel 2, or Tunnel 1 after the daylighting of the Cats Canyon tunnel) is a railroad tunnel located in the Santa Cruz Mountains in Santa Clara and Santa Cruz Counties, California. Opened in 1880 after almost two years of construction involving numerous fatalities, the tunnel was at one point ...

  4. Underground Service Alert - Wikipedia

    en.wikipedia.org/wiki/Underground_Service_Alert

    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 ...

  5. Ground-penetrating radar - Wikipedia

    en.wikipedia.org/wiki/Ground-penetrating_radar

    Borehole radars utilizing GPR are used to map the structures from a borehole in underground mining applications. Modern directional borehole radar systems are able to produce three-dimensional images from measurements in a single borehole. [8] One of the other main applications for ground-penetrating radars is for locating underground utilities.

  6. 8-1-1 - Wikipedia

    en.wikipedia.org/wiki/8-1-1

    In March 2005, the United States Federal Communications Commission (FCC) made 8-1-1 the universal number for the 71 regional services that coordinate location services for underground public utilities in the U.S. [12] Before that time, each of these "call before you dig" services [13] had its own 800 number, and the FCC and others wanted to make it as easy as possible for everyone planning an ...

  7. Secret Service agent robbed at gunpoint on night of glitzy ...

    www.aol.com/news/secret-agent-robbed-gunpoint...

    Tustin Police Officers are investigating the robbery of a member of the U.S. Secret Service who was held at gunpoint.

  8. 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.

  9. List of tunnels in California - Wikipedia

    en.wikipedia.org/wiki/List_of_tunnels_in_California

    McClure Tunnel, SR 1 located at the western terminus of I-10 in Santa Monica; Mount Baldy Road, two tunnels, north of Claremont; Newhall Pass Tunnels, two tunnels about 550 feet (170 m) each, southbound truck bypass lanes of the Golden State Freeway , in Santa Clarita and Los Angeles [9]

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