State Road 228 (SR 228) is a 32.5-mile-long (52.3 km) state highway in the northeastern part of the U.S. state of Florida. It exists in two distinct sections, separated by County Road 228, which is a former segment of SR 228.The western segment of SR 228 exists in Macclenny, connecting US 90 and County Road 228 with Interstate 10 (I-10) at exit 336 and another instance of the county road.Its main segment is in Jacksonville. This segment connects U.S.