Question: What do the New Hampshire State Police patrol that is approximately 17029 miles in length?

Context paragraphs:
Vermont Route 105: Vermont Route 105 (VT 105) is a 98.135 mi state highway located in northern Vermont in the United States.  The route runs from U.S. Route 7 (US 7) in St. Albans in the west to the New Hampshire state line in Bloomfield in the east.  The road continues across the state line as Bridge Street, a short unnumbered New Hampshire state route to US 3 in North Stratford, New Hampshire.  As it is not a New Hampshire state highway, the connection is signed with Vermont state highway signage, similar to how connections to Vermont state routes are indicated elsewhere in New Hampshire.

Arkansas State Police: The Arkansas State Police is a state police agency for Arkansas, which has jurisdiction anywhere in the state.  It was created to protect the lives, property and constitutional rights of people in Arkansas.  Unlike other similarly named state police organizations in the United States, the Arkansas State Police is more of a Department of Public Safety in that it is an umbrella organization rather than a general policing agency.  The uniformed divisions is as a highway patrol not a general power police as the Arkansas constitution grants that authority to the various county sheriffs and local police.  While the Arkansas State Police was developed primarily to enforce liquor laws and assist local police departments, all commissioned State Troopers have arrest authority that is equal to that of the County Sheriffs regarding any/all criminal and traffic laws of Arkansas.  The official duties of the Arkansas State Police is as an assisting agency in a mentor role to the local agencies and to aid in the supply of resources not afforded to the local agencies.

New Hampshire State Police: The New Hampshire State Police is a state police agency within the Department of Safety of the U.S. state of New Hampshire.  Police employees of the State Police are ex officio constables and have the primary role of patrolling the state highways, enforcing the laws and regulations of the highway and motor vehicles, and regulations relating to the transportation of hazardous materials.  The jurisdiction of the State Police is limited to toll roads, and towns or cities under 3,000 people.

New Hampshire Highway System: The New Hampshire Highway System is the public roads system of the U.S. state of New Hampshire containing approximately 17029 mi maintained by the New Hampshire Department of Transportation (NHDOT).  All public roads in the state are called "highways", thus there is no technical distinction between a "road" or a "highway" in New Hampshire.

New Jersey State Park Police: The New Jersey State Park Police patrol and protect the State’s 54 parks, forests and recreation areas which encompass more than 422000 acre and are visited by more than 17 million people each year.  Their motto is "Protecting New Jersey's Treasures and the people who visit them."  All State Park Police Officers are sworn State Law Enforcement Officers who are PTC certified.  Officers carry weapons and have all of the arrest and law enforcement powers of any police officer in the state.  They are dedicated to safeguarding New Jersey’s resources 24 hours a day through the prevention of crime, apprehension of criminals, enforcement of criminal and motor vehicle laws of the state, and enforcement of park regulations.  State Park Police respond to public safety emergencies and environmental emergencies.  They use various methods of patrol, including foot, bike, boat, ATV, and motor patrol.

Concord Civic District: The Concord Civic District consists of a collection of local and state civic buildings centered on the New Hampshire State House in Concord, New Hampshire.  In addition to the State House, the district includes the Legislative Office Building, New Hampshire State Library, Concord City Hall, Concord Community Center, New Hampshire Historical Society, State House Annex, and the Concord Public Library.  It also includes statuary and memorial objects placed on the grounds of the State House.  The buildings, although architecturally different, are predominantly made out of locally quarried granite, and their grounds are landscaped in similar ways.  The district was added to the National Register of Historic Places in 1983.

California State Parks Peace Officer: California State Park Peace Officers (S.P.P.O) are fully sworn California State Police Officers, with two sub-classifications, the Ranger and the Lifeguard.  S.P.P.O.s often use the title of State Police Officer during enforcement contact, as many Park Rangers and Lifeguards within municipalities, counties and special districts are not armed Peace Officers, with authority throughout the state, on and off duty, like the California State Park Peace Officers law enforcement officer.  State Park Peace Officers perform a wide variety of general law-enforcement activities, including complex criminal investigations, traffic enforcement, and participate in statewide task forces, for gang suspension, narcotics enforcement, auto theft, and fish and wildlife crimes, under the jurisdiction of the California Department of Parks and Recreation in the state parks of California, United States.  Duties include general law enforcement, aquatic rescue (by lifeguards and other certified officers), search and rescue, emergency medical response, interpretation of natural, historic and cultural resources, resource protection, park management and proactive enforcement patrol.  The current sidearm of the California State Park Peace Officer is the Smith & Wesson M&P, the current patrol rifle is the Colt AR-15 Model LE6920, and the current patrol shotgun is the venerable, Remington Model 870 Police Magnum.

Mary Louise Hancock: Mary Louise Hancock (born July 5, 1920) is a retired New Hampshire state senator, former New Hampshire State Planning Director and has been called the 'Grand Dame' and the 'Queen Bee' of New Hampshire politics.  She is a long term resident of New Hampshire's capital city of Concord and was the first woman to be elected senator from the state's 15th district.  She received both the Robert Frost Award and the Susan B. Anthony Award.  She has received honorary degrees from Keene State College as well as Notre Dame College of New Hampshire.  Ms. Hancock is a distant relative of famed revolutionary John Hancock.

Ed Dupont: Ed Dupont is a New Hampshire businessman, five-term New Hampshire state senator, former New Hampshire State Senate President, and President of the Dupont Group, one of New Hampshire's most powerful lobbying firms.  He served on the University of New Hampshire Board of Trustees for a decade, the last four years as Chair, and served on the New Hampshire Commission on State Government Innovation, Efficiency, and Transparency.

California State Police: The California State Police was a security police agency founded in 1887 which served to protect the State Capitol Building, the Governor, other state agencies located throughout the state and thousands of State employees 24 hours a day.  They provided police services to all state agencies that did not have their own police force.  They patrolled the State Water Project (also known as the California Aqueduct) and were the state's de facto capitol police, provided dignitary protection for the Governor and other state officials as directed, including the California Supreme Court in San Francisco, provided investigative services to elected officials through their Threat Assessment Detail and criminal investigations of crimes committed against the State through the Bureau of Investigative Services and performed tax seizures for the California Franchise Tax Board and Board of Equalization.  Detectives and Line officers routinely conducted investigations with other State Agencies and allied law enforcement departments.  State Police officers held jurisdiction throughout the State, providing law enforcement on and off California properties.  The California State Police merged with the California Highway Patrol in 1995.

Supporting paragraphs: New Hampshire State Police New Hampshire Highway System
Answer: New Hampshire Highway System