Specifications include, but are not limited to: The intent of this Invitation for Bid (IFB) is to hire one contractor to furnish all labor, materials, tools, transportation, supplies, equipment, and appurtenances necessary for the complete and satisfactory installation of the storm drains, manholes. Excavation shall be unclassified regardless of material encountered. Installation of concrete structures shall conform to applicable requirements of VDOT 302. Structures shall be constructed to required height to ensure that inlets will be set at finished grade for drop inlets. Pipe shall be set in structures at proper elevations and grade. Joints between pipe and structures may either be filled with brick and sealed with mortar or filled with non-shrink grout. Invert Shaping- All drainage structures shall have pipe inverts shaped in accordance with VDOT Standard IS-1.