SCDOT recently shared its plan for the new funding for roads signed into law by Governor Haley last week.
This document breaks down the funding distribution by the affected road system (i.e. Primary, Secondary, National Highway System, Interstate), as well as the type of improvement to that system (resurfacing, bridge replacement, or widening).
This document gives a better description of the Interstate Widening projects that will be funded (within the $2 Billion blue box), and shows a list of additional interstate needs that still need funding.