Prior to SR 21's northern terminus, Blanding continues to the northeast for several more blocks north of San Juan Avenue until it straightens to the north again and crosses St. Johns Avenue. Blanding Boulevard has a full intersection with Park Street, with eastbound Park Street providing access to US 17 south. North of Park Street, Blanding becomes a limited access connecting overpass crossing over Hamilton Street, a double tracked railroad, and has an interchange with US 17 (Roosevelt Boulevard) northbound at the edge of Florida State College at Jacksonville's Kent Campus, also with access from US 17 Roosevelt Boulevard southbound to SR 21 southbound. SR 21 ends at a second intersection with Park Street and an entrance to Kent campus at the eastern end of the interchange.