mill and fill

mill and fill
 n.— «Colo. 131 was on CDOT’s short-list in the region for repaving, Shanks said. “It needed it somewhat badly—when they have to do a full-blown ‘mill and fill’ as they call it, the road clearly needed some rehabilitation,” Shanks said. While there was some grumbling downtown about dust and noise.» —“Colorado 131 repaving reaches Oak Creek” by Melinda Dudley Steamboat Pilot & Today (Steamboat Springs, Colorado) July 2, 2008. (source: Double-Tongued Dictionary)