In Augusta, SR 27 intersects SR 24 and US 201, then intersects US 202, SR 11, SR 17 and SR 100 at a rotary. Continuing north, SR 27 leaves US 201 and turns northwest toward Belgrade. It intersects SR 105 and SR 104 before heading towards I-95 along with SR 8 and SR 11. In North Augusta, the highway intersects SR 3 and, in Sidney, intersects SR23. In Belgrade, SR 8 and SR 11 split off and SR 27 intersects SR 135 before passing through Belgrade Lakes Village.