New Hampshire Highway System - Classification of State Highways

Classification of State Highways

New Hampshire RSA 229:5 Classification. sets out the seven different classes of highways in the state:

• Class I – all portions of the turnpikes and the national system of interstate and defense highways, and all existing or proposed highways on the primary state highway system, excepting all portions of highways within the compact sections of the cities and towns listed in RSA 229:5, V., which aren't part of the state or national turnpike system or are defense highways
• Class II – all existing or proposed highways on the secondary state highway system, excepting all portions of such highways within the compact sections of the cities and towns listed in RSA 229:5, V.
• Class III – all recreational roads leading to, and within, state reservations designated by the General Court
• Class III-a – boating access highways from any existing highway to any public water in this state.
• Class IV – all highways within the compact sections of cities and towns listed in RSA 229:5, V., which are not Class I or II highways
• Class V – all other traveled highways which a town has the duty to maintain regularly and shall be known as town roads
• Class VI – all other existing public ways, including all highways discontinued as open highways and made subject to gates and bars, except Class III-a roads, and all highways which have not been maintained and repaired by the town for travel thereon for 5 or more successive years

Under RSA 229:5, V. the Commissioner of Transportation may establish compact sections in the following cities and towns: