sentences:  The highway and the railroad move onto the shore of Drayton Harbor, part of Semiahmoo Bay, and travel north through downtown Blaine.SR 548 reaches its terminus at a dogbone interchange with I-5, signed as exit 276, near the city's marina, approximately from the Peace Arch crossing of the Canadian border.The interchange also includes ramps to D Street, which continues east to SR 543, and 2nd Street, which connects to a parking lot for Peace Arch State Park.