GCW prepared and managed construction documents for the access and recirculation roadway system, storm drainage, water distribution, and sanitary sewer systems related to the new Terminal 3 building and parking garage. The access and recirculation roadways included 21 bridges and embankments. Drainage facilities for collection and conveyance of storm flows include the modification of existing airport detention basins. GCW also completed improvements for the at-grade parking and staging areas for taxicabs, buses, limousines, shuttles, oversized vehicles, and overflow from the garage.