 Running through Wrens, the proposed Interstate 14 is supposed to run through and have an interchange with US 1-221, but for now the segment of that proposed interstate serves as the southern end of the SR 88 multiplex.Northeast of there, US 1/221/SRs 4/88 loses the concurrency with SR 17 at Thompson Street, and SR 88 leaves the concurrency at SR 80 as it briefly joins that route in another concurrency.Just after US 1/SR 4 widens to a four-lane undivided highway, US 221 splits off to the northwest cosigned with Georgia State Route 47 and passes the Wrens Memorial Airport.