Senior Airman Andrew Higginbotham uses a concrete saw to cut out a piece of curb during the construction of a parking lot at Nellis Air Force Base, Nev., Aug.15, 2012. The parking lot will be a general parking lot for work centers around the area. Higginbotham is a 99th Civil Engineer Squadron heavy equipment and pavements journeyman. (U.S. Air Force photo/Airman 1st Class Daniel Hughes)