Interstate 93 in New Hampshire

Interstate 93 in New Hampshire
State	NH
Route	Interstate 93
Type	Interstate
Length mi	131.5
Established	1957
Direction a	South
Terminus a	Massachusetts
Direction b	North
Terminus b	Canada–United States border

Interstate 93 in New Hampshire Interstate 93 in New Hampshire is a major north–south Interstate corridor linking the Massachusetts border with central and northern New Hampshire communities. The route serves metropolitan areas such as Manchester and recreational regions including the White Mountains, providing connections to Interstate 95, Interstate 89, and U.S. Route 3. It is a key artery for commuters, tourism to sites like Mount Washington, and freight movements to Seaport of Boston and beyond.

Route description

I-93 enters New Hampshire from Massachusetts near Hudson, passes through the Merrimack River valley and the Greater Manchester area, parallels U.S. Route 3, and proceeds north through Concord toward the Franconia Notch corridor and the White Mountain National Forest. Along the way the Interstate crosses the Merrimack River, intersects Interstate 89 near Concord, and joins the Franconia Notch Parkway section near Lincoln and Franconia Notch. The route serves access points for Manchester-Boston Regional Airport, the New Hampshire Motor Speedway via connecting routes, and mountain gateway towns such as Littleton and Pittsburg. I-93 provides links to tourist attractions including the Concord Monitor-area government institutions, Mount Washington area, and ski resorts like Loon Mountain and Cannon Mountain.

History

Planning for the Interstate Highway System segments that became I-93 in New Hampshire began during the mid-20th century under federal programs tied to the Federal-Aid Highway Act of 1956 and state building initiatives in Concord. Early construction tied to urban renewal projects affected neighborhoods in Manchester and spurred debates involving local officials, advocacy groups, and newspapers such as the Concord Monitor and New Hampshire Union Leader. The northward extension opened in phases, with key milestones including completion of the F.E. Everett Turnpike ties, the Franconia Notch Parkway realignment, and interchange upgrades near Hooksett. Environmental and legal challenges from organizations like Sierra Club and state agencies influenced design choices through the National Environmental Policy Act review processes. Over decades, upgrades addressed safety concerns identified after incidents on steep mountain stretches near Franconia Notch and winter operations near Mount Washington.

Exit list

The exit sequence on I-93 in New Hampshire includes interchanges serving communities and connections to principal routes: exits near Hudson provide access to Massachusetts Route 38-area corridors; progressively, interchanges serve Bedford, Manchester, and regional arterials like New Hampshire Route 101. Further north, exits connect to Concord local streets, Interstate 89 near Bow/Concord, and to U.S. Route 302 at Littleton and the Franconia Notch rest area system. Exit numbers correspond to mileposts and were renumbered in accordance with state policy changes affecting links to Interstate 95 and other New England interstates. Major junctions include connections to Interstate 89, U.S. Route 3, and parkway spurs serving White Mountain National Forest attractions such as Franconia Notch State Park and Mt. Washington State Park.

Services and rest areas

Service facilities along I-93 include travel plazas, gas stations, and truck stops near Manchester, Concord, and Lincoln, with access to lodging chains serving tourists bound for Loon Mountain and Bretton Woods. State-run rest areas and scenic overlooks provide facilities for motorists; some are located within or adjacent to conservation lands such as Flume Gorge access points and approaches to Franconia Notch. Support services link to regional airports including Manchester-Boston Regional Airport and rail connections at Concord Station, while emergency response coordination involves New Hampshire State Police and local fire departments in municipalities like Hooksett and Campton.

Traffic, safety, and improvements

Traffic volumes on I-93 vary from dense urban loads in the Manchester–Nashua corridor to seasonal peaks from tourism to the White Mountains and winter conditions influenced by Nor'easter storms and Lake-effect snow patterns. Safety programs have targeted steep grades and tight curves near Franconia Notch and ice-prone passes near Mount Washington, prompting improvements such as upgraded guardrails, additional signage referencing severe-weather advisories from the National Weather Service, and pavement rehabilitation funded through state capital programs and federal Bipartisan Infrastructure Law allocations. Incident management involves coordination among New Hampshire Department of Transportation, Federal Highway Administration, municipal agencies in Concord and Manchester, and regional transit operators including C&J Bus Lines for detours during closures.

Future plans and proposals

Future proposals for I-93 in New Hampshire include interchange reconfigurations near Hooksett to relieve congestion tied to commuting patterns between Manchester and Boston, corridor widening studies north of Concord to address projected growth, and multimodal integration plans linking to commuter rail extensions promoted by regional bodies like the Boston Region Metropolitan Planning Organization and the New Hampshire Department of Transportation. Environmental assessments consider impacts on protected areas such as White Mountain National Forest and recreational assets including Franconia Notch State Park, while funding strategies contemplate federal grants administered by the Federal Highway Administration and state transportation bonds overseen by the New Hampshire Legislature. Stakeholder engagement includes municipal governments in Bedford, Hooksett, Littleton, tourism organizations such as the New Hampshire Division of Travel and Tourism Development, and conservation groups like the Appalachian Mountain Club.

Category:Transportation in New Hampshire