Southbound I-35 Airport Boulevard exit closed for new ramp construction

AUSTIN (KXAN) — Starting Sunday at 9 p.m., the southbound Interstate 35 exit for Airport Boulevard  — Exit 237A — will close so that crews can construct a new entrance ramp and exit ramp to Airport Boulevard.
In the meantime, drivers will need to exit at 51st Street, and take the frontage road to get to Airport Boulevard.
Drivers from US 290 can take either the Airport Boulevard exit from US 290 or take the flyover to southbound Interstate 35, then proceed to the southboun