New Hampshire Turnpike System is a system of 93 miles (149.7 km) of limited access highway, 36 miles (57.9 km) of which are part of the National Highway System

National Highway System (United States)

The National Highway System is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities.Individual states...

, within the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of New Hampshire

New Hampshire

New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

. The Turnpike System is managed by the New Hampshire Department of Transportation

New Hampshire Department of Transportation

The State of New Hampshire Department of Transportation is a government agency of the U.S. state of New Hampshire. The NHDOT is under the executive direction of Commissioner of Transportation George Campbell. The main office of the NHDOT is located in the J.O...

 (NHDOT) Bureau of Turnpikes.

There are three limited access highways that make up the Turnpike System:

• The Blue Star Turnpike, also known as the New Hampshire Turnpike (I-95
  Interstate 95 in New Hampshire
  Interstate 95, the main Interstate Highway on the east coast of the United States, cuts through the Seacoast Region of New Hampshire. The majority of it, from the Massachusetts border to the Portsmouth Circle in Portsmouth, is the 14.29-mile Blue Star Turnpike or New Hampshire Turnpike, a toll...
  
  ).
• The Spaulding Turnpike
  Spaulding Turnpike
  The Spaulding Turnpike is a toll road in New Hampshire, USA, running from Interstate 95 in Portsmouth northwest to Milton. The turnpike roughly parallels the Maine border, and in the mid-1990s New Hampshire Route 16 was re-signed onto the turnpike...
  
  .
• The Everett Turnpike
  Everett Turnpike
  The Frederick E. Everett Turnpike, also called the Central New Hampshire Turnpike, is a toll road in New Hampshire, USA, running from the Massachusetts border at Nashua north to Concord...
  
  , which is also known as the Central Turnpike or Central New Hampshire Turnpike.

The Blue Star and Spaulding Turnpikes are also known collectively as the Eastern Turnpike.