Estimated percentages are given for each category of work: 5% for excavation, removal, clearing and disposal of existing site materials; 20% for trenching and installing underground concrete encased or direct buried conduit; 40% for procuring and installing light pole bases, light poles, interior and exterior lighting and power circuit, all associated electrical controls, boxes and panels; 35% for excavation and installation of hand holes, manholes, grounding and wiring; and restoring site as directed including but not limited to placing concrete, asphalt and landscaping material.