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2. National Utility Contractors Association - Wikipedia

   en.wikipedia.org/wiki/National_Utility...

   Many utility contractors were also told by other unions they were required to submit their job plans to the United Association for review, and that union would assign the work. After an unfavorable NLRB hearing over the Andrews AFB dispute, attorney Stone wrote other local D.C. contractors outlining the reasons for an association for utility ...

3. Utility location - Wikipedia

   en.wikipedia.org/wiki/Utility_location

   A Utility Search, also known as a C2 Utility Search or PAS128 (D) utility search, is the initial step in identifying utility asset owners and locating their buried and overhead assets and apparatus. A Utility Search is essential for development projects as it provides valuable insight into the presence and location of underground and overhead ...

4. craigslist - Wikipedia

   en.wikipedia.org/wiki/Craigslist

   Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...

5. Subsurface utility engineering - Wikipedia

   en.wikipedia.org/wiki/Subsurface_utility_engineering

   Subsurface utility engineering (SUE) refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation ...

6. 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.

7. Coal mining in the United States - Wikipedia

   en.wikipedia.org/wiki/Coal_mining_in_the_United...

   Location of surface coal mines in the US Locations of underground coal mines in the US Trends in underground versus surface mining of US coal, 1949–2011. The hardest coal, anthracite, originally used for steel production, heating, and as fuel for ships and railroads, had by 2000 dwindled to an insignificant portion of production.