Structures Airport facilities such as bridges; culverts; catch basins, inlets, retaining walls, cribbing; storm and sanitary sewer lines; water lines; underdrains; electrical ducts, manholes, handholes, lighting fixtures and bases; transformers; flexible and rigid pavements; navigational aids; buildings; vaults; and, other manmade features of the airport that may be encountered in the work and not otherwise classified herein. 10-50 SUBGRADE. The soil which forms the pavement foundation.
Operational All expenses for running and operating all machinery, equipments and installations comprised in the Common Areas, including elevators, diesel generator set, changeover switch, pump and other common installations including their license fees, taxes and other levies (if any) and expenses ancillary or incidental thereto and the lights of the Common Areas and the road network.