The Texas Department of Transportation (TxDOT) and Williamson County have proposed plans to widen and realign RM 2243. It is outlined to be built from U.S. 183A to Southwest Bypass. The project is a controlled-access roadway that will also include two three-lane frontage roads with access ramps on either side of the main lanes. At this point, there is only funding (through the 2019 Williamson County Road Bond) for the first phase which will be the construction of a single 3-lane frontage road to serve two-way traffic until the other frontage road is built. As of now, phase one construction is expected to begin in late 2022.
TxDOT and Williamson County hosted a virtual public meeting on May 25th, 2021 as its first round of public input. During the meeting, there was no mention on how much right of way will be needed; however, according to their plans the project will require significant additional ROW and displacements. The schematic provided at the meeting can be viewed [here].