Staff Sgt. Adam Haviland, 11th Civil Engineer Squadron pavements and heavy equipment supervisor, instructs Col. Bill Knight, 11th Wing/Joint Base Andrews commander, how to operate construction vehicles before moving a large dirt pile in the development site for Heritage Park at Joint Base Andrews, Md., June 5, 2014. The site is being completed in two phases with the second phase slated to be completed next calendar year. (U. S. Air Force photo/Airman 1st Class Joshua R. M. Dewberry)