Pour it on thick
MCGHEE TYSON AIR NATIONAL GUARD BASE, Tenn. - Construction crewmen pour the concrete for the footings of the classroom and dormitory facility retaining wall here Nov. 13, 2014. Due to current weather conditions this concrete must set for at least a week before the crew can continue building the 17 foot tall wall. (U.S. Air National Guard photo by Master Sgt. Jerry D. Harlan/Released)

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Photo by: Master Sgt. Jerry D. HarlanReleased  |  VIRIN: 141113-Z-MK871-006.JPG