Interstate 95 in New Hampshire

Interstate 95
Interstate 95
Blue Star Turnpike
	I-95 highlighted in red
Route information
	Maintained by NHDOT Bureau of Turnpikes
Length	16.11 mi (25.93 km)
Existed	1957 (Turnpike opened in 1950)–present
NHS	Entire route
Major junctions
South end	I-95 in Salisbury, MA
	NH 101 in Hampton; US 4 / NH 16 / Spaulding Turnpike in Portsmouth; US 1 Byp. in Portsmouth;
North end	I-95 / Maine Turnpike in Kittery, ME
Location
Country	United States
State	New Hampshire
Counties	Rockingham
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; New Hampshire Highway System; Interstate; US; State; Turnpikes;

Interstate 95 (I-95) is an Interstate Highway on the east coast of the United States, connecting Florida to Maine. Within the state of New Hampshire, it serves the Seacoast Region and is a toll road named the Blue Star Turnpike or New Hampshire Turnpike. The 16.11-mile (25.93 km) turnpike is maintained by the New Hampshire Department of Transportation (NHDOT) Bureau of Turnpikes and has a single toll plaza near Hampton.

The Blue Star Turnpike begins near the Massachusetts state line in the town of Seabrook and travels north through Hampton and its neighboring municipalities. It then continues around Portsmouth and crosses the Piscataqua River Bridge at the Maine state line, where it becomes the Maine Turnpike. New Hampshire's portion of I-95 is the shortest of any state that the Interstate passes through; the highway is the main thoroughfare between urban areas in Massachusetts and points in Maine.

Construction of the turnpike was approved in 1947 and began a year later in an effort to bypass congestion on U.S. Route 1 (US 1), the main seacoast highway. It opened to traffic on June 24, 1950, and was later designated as part of I-95 in 1957. The northernmost section in Portsmouth, connecting to the Maine Turnpike, was left incomplete until the Piscataqua River Bridge opened in 1972.

^ Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved December 24, 2023.
^ Bureau of Planning & Community Assistance (January 5, 2022). "NH Public Roads" (GIS dataset). New Hampshire Department of Transportation. Retrieved January 21, 2022 – via New Hampshire Geographically Referenced Analysis and Information Transfer System.

[1] Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved December 24, 2023.

[NHDOT-GRANIT-2] Bureau of Planning & Community Assistance (January 5, 2022). "NH Public Roads" (GIS dataset). New Hampshire Department of Transportation. Retrieved January 21, 2022 – via New Hampshire Geographically Referenced Analysis and Information Transfer System.

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