The contractor shall provide delivery of 680 cubic meters (1,198 metric tons / 1,179 imperial tons / 1,320 short tons) of 3-inch (75 mm) nominal size ballast rock and 609 cubic meters (1,268 metric tons / 1,248 imperial tons / 1,398 short tons) of graded crushed aggregate base course to Daegu (K-2) Air Base, Daegu, Republic of Korea.