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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. 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 ...

4. 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 ...

5. Directional boring - Wikipedia

   en.wikipedia.org/wiki/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. Directional boring offers significant ...

6. Underground pneumatic boring - Wikipedia

   en.wikipedia.org/wiki/Underground_pneumatic_boring

   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.

7. 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 ...

8. List of power stations in Illinois - Wikipedia

   en.wikipedia.org/wiki/List_of_power_stations_in...

   Wind (12.4%) Solar (1.1%) Biomass (0.2%) Petroleum & Other Gases (0.2%) Hydroelectric (0.1%) Other (0.1%) Illinois electricity production by type. This is a list of electricity-generating power stations in the U.S. state of Illinois, sorted by type and name. In 2022, Illinois had a total summer capacity of 44,163 MW and a net generation of ...

9. Southern Illinois - Wikipedia

   en.wikipedia.org/wiki/Southern_Illinois

   Southern Illinois is a region of the U.S. state of Illinois comprising the southern third of the state, principally south of Interstate 70.Part of downstate Illinois, it is bordered by the two most voluminous rivers in the United States: the Mississippi below its connection with the Missouri River to the west and the Ohio River to the east and south, with the Wabash as a tributary.