It typically starts with planning, financing, and design, and continues until the asset is built and ready for use construction also covers repairs and maintenance work, any works to expand, extend and improve the asset, and its eventual demolition, dismantling or decommissioning. Preparing construction sites, materials, and tools. Loading and unloading of materials, tools, and equipment. Removing debris, garbage, and dangerous materials from sites. Assembling and breaking down barricades, temporary structures, and scaffolding.