The bridge is supported by concrete 'pylons'.
a row of electricity 'pylons'
(..) Four days ago, you snapped. You had one of your trained dogs attack him. Four days ago? I'm a driller, Agent Booth. I dig wells mostly, some pylon holes. Four days ago I was at an auger seminar in Chicago. Can you corroborate that? Airplane tickets, hotel receipts, about eyewitnesses. (..)2008 TvShow: Bones Title: The Finger in the Nest Season: 4 Episode 3