General mechanical erection for a new upgrader. Includes pipe fabrication, module assembly, pipe installation, structural steel erection, equipment installation, civil work, fireproofing, painting, excavation and backfill. 4 process towers, 12 oversized piperack modules, assembly of 12 process structures. Basically all areas of construction. Concrete paving and foundation work, spread footings, general building slabs ranging from 1cy to 10cy. Process piping included the fabrication and installation of two underground drainage systems, the installation of owner supplied large bore piping and components and the fabrication and installation of all of the small bore piping.