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Utility Markings | by scottbrennan6
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Utility Markings

In 1979, utility workers accidentally cut into a petroleum line in Culver City, California, creating an explosion that leveled half a city block. Since that time, utility workers have developed a code engineers or construction foremen spray paint on the street to denote unseen hazards beneath the surface to help workers avoid accidents during construction projects. They use both colors and shapes to create their nomenclature, which, to a an ordinary pedestrian, can seem like a mad graffiti artist's chaotic manifesto, a work of art inspired by Cy Twombly, or something reminiscent of the paintings found on the walls of caves. In any case, this is how one might decipher the code: red = electric power lines, cables, conduit and lighting cables; orange = telecommunication, alarm or signal lines, cables or conduit; yellow = natural gas, oil, steam, petroleum or other flammables; green = sewers and drain lines; blue = drinking water; purple = reclaimed water, irrigation and slurry lines; pink = temporary survey markings, unknown/unidentified facilities; white = proposed excavation limits or routes. (Information paraphrased from various sources, including 99percentinvisible.org) * #urban #urbandetails #sidewalk #language #spraypaint #concrete #construction #graffiti #art #foundart #film #pentax6x7

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Uploaded on December 25, 2019