Billy Swails Boulevard 4B is the final roadway segment that would complete what was originally named the Hungryneck Boulevard corridor, a parallel route to US 17 and Rifle Range Road. The anticipated cross-section is a two-lane divided roadway with a landscaped median, turn lanes and bike and pedestrian facilities. The project would join the existing Sweetgrass Basket Parkway on the west to the existing portion of Billy Swails Boulevard to the east.
The project is currently undergoing an environmental review under the NEPA process. An alignment decision has not been made at this time. Engineering work is ongoing.