Systems and methods for precast slab construction and maintenance

A method of maintaining a precast slab roadway, the method comprising:

• lifting a distal slab adjacent to a proximal slab from an installed position to a maintenance position so that the distal slab pulls a distal portion of an electrical conductor out of a distal end of a subgrade conduit underneath the proximal slab, the lifting drawing a slack portion of the electrical conductor from a junction box adjacent the proximal slab opposite the distal slab into a proximal end of the subgrade conduit, the slack portion having a length equal to or greater than a height difference between the maintenance position and the installed position;
• performing a maintenance action or a modification action on at least one of the distal slab, the proximal slab, an electrical component, and a substrate configured to support the distal slab;
• lowering the distal slab from the maintenance position to the installed position on the substrate adjacent to the proximal slab;
• and
• pulling the slack portion of the electrical conductor out of the proximal end of the subgrade conduit so the distal portion of the electrical conductor is drawn into the distal end of the subgrade conduit.

A precast slab roadway comprising:

• a plurality of proximal slabs arranged end-to-end forming an inner lane;
• a plurality of distal slabs arranged end-to-end adjacent to the proximal slabs forming an outer lane, each of the plurality of distal slabs being configured to be raised from an installed position to a maintenance position;
• and
• a roadway electrical component system comprising:
• a plurality of junction boxes adjacent to the proximal slabs opposite the distal slabs, each of the plurality of junction boxes including one or more electrical components;
• a plurality of electrical components embedded in the distal slabs;
• a plurality of subgrade conduits extending below the proximal slabs from the plurality of junction boxes to the plurality of distal slabs, each of the plurality of subgrade conduits including a proximal end;
• and
• a plurality of electrical conductors extending respectively through the plurality of subgrade conduits and electrically connecting the corresponding plurality of electrical components in the distal slabs to the corresponding plurality of electrical components of the plurality of junction boxes, each of the plurality of electrical conductors including a proximal end including a slack portion extending out of the corresponding proximal end of one of the plurality of subgrade conduits, the slack portion having a length equal to or greater than a height difference between the maintenance position of a corresponding distal slab and the installed position of the corresponding distal slab.