Interstate 393

Interstate 393 is a short auxiliary Interstate Highway located entirely within the city of Concord, the capital city of New Hampshire. It serves as a vital eastern bypass and commercial spur from the mainline Interstate 93, connecting it to the city's downtown and eastern commercial districts. The highway provides a critical link for traffic between the Merrimack River valley and the Seacoast Region, terminating at a major intersection with U.S. Route 4 and U.S. Route 202.

Route description

Beginning at a directional T interchange with Interstate 93 just south of the Merrimack River, the highway travels eastward through a mix of commercial and light industrial areas. It passes just north of the New Hampshire State Prison for Men and the grounds of the New Hampshire Technical Institute. The route features a partial cloverleaf interchange with New Hampshire Route 9, a key east-west artery across southern New Hampshire, providing access to the Fort Eddy Road commercial corridor. Continuing east, it crosses over the Merrimack River via the John P. Hale Bridge before descending to its eastern terminus at a signalized intersection with U.S. Route 4 and U.S. Route 202, known locally as the Heights neighborhood. The entire roadway is maintained by the New Hampshire Department of Transportation.

History

The corridor was originally constructed in the late 1960s and early 1970s as part of the Everett Turnpike extension, a project intended to connect Manchester to Concord. This initial segment, known as the Blue Turnpike or the "Concord Bypass," opened to traffic in 1970. Following the completion of Interstate 93 through the area, the American Association of State Highway and Transportation Officials (AASHTO) approved the designation of this spur route as an auxiliary Interstate in 1985. The highway's designation was part of a broader effort to integrate the New Hampshire Turnpike System with the national Interstate Highway System. The John P. Hale Bridge, a prominent feature, is named for the 19th-century United States Senator from New Hampshire who was a prominent abolitionist.

Exit list

The entire route is in Merrimack County, within the city of Concord. {| class="wikitable" |- ! mi ! km ! colspan="2" |Exit ! Destinations ! Notes |- | 0.00 | 0.00 | colspan="2" |— | style="text-align:left;" | Interstate 93 – Manchester, Plymouth, White Mountains | style="text-align:left;" | Western terminus; T interchange; I-93 exit 15E |- | 1.20 | 1.93 | colspan="2" |1 | style="text-align:left;" | Fort Eddy Road | style="text-align:left;" | Serves New Hampshire Technical Institute |- | 2.20 | 3.54 | colspan="2" |2 | style="text-align:left;" | New Hampshire Route 9 – Downtown Concord, Henniker | style="text-align:left;" | Partial cloverleaf interchange |- | 4.42 | 7.11 | colspan="2" |— | style="text-align:left;" | U.S. Route 4 east / U.S. Route 202 north – Northwood, Lake Winnipesaukee | style="text-align:left;" | Eastern terminus; at-grade signalized intersection |- | colspan="6" style="text-align:left;" | U.S. Route 4 west / U.S. Route 202 south – Downtown Concord, Penacook |- | colspan="6" |1.000 mi = 1.609 km; 1.000 km = 0.621 mi |}

Junction list

The following is a concise list of major junctions along the route, as certified by the Federal Highway Administration. * Interstate 93 in Concord (western terminus) * New Hampshire Route 9 in Concord * U.S. Route 4 / U.S. Route 202 in Concord (eastern terminus)

Category:Interstate Highways in New Hampshire Category:Transportation in Merrimack County, New Hampshire Category:Transportation in Concord, New Hampshire