From The North and South: 1  Take I-476 Exit 56 towards US Rt. 22. 2  Merge onto US 22E towards PA-309/I-78E/Allentown. 3  From Rt 22 E, take the Airport Rd.  Follow PA 987N/ Airport Rd towards L.V. 1 I. Continue past the airport entrance and make a left onto E Race 2  St. Follow E Race St. for 1 mile and make a right turn onto Willowbrook  Dr.