 I-93 and New Hampshire Route 101 run concurrently for about before New Hampshire Route 101 heads directly east as its own freeway, serving Portsmouth and the Seacoast region.I-93 keeps three lanes of traffic in each direction until the junction with Interstate 89, when each side reduces back to two, and remains a four-lane freeway through most of its journey northward, with the only exception being the Franconia Notch section.It crosses the Merrimack River again before going through the state capital of Concord.