The New Hampshire Turnpike System is a bureau within the Division of Operations of the State of NH Department of Transportation.

The Turnpike System is reported as an enterprise fund of the State of New Hampshire. The Turnpike System constructs, maintains, and operates toll transaction facilities and issues revenue bonds, which are repaid from tolls and other revenues.

All tolls collected by the Turnpike System must remain with the Turnpike System and cannot be diverted for any other use.