page_title: Speed limits in the United States by jurisdiction
section_title: New Hampshire
hierarchical_section_title: Speed limits in the United States by jurisdiction / New Hampshire
caption_attribution_description: English: Antique New Hampshire speed limit sign. On display at Clark's Trading Post, Lincoln New Hampshire.
context_page_description: Speed limits in the United States vary depending on jurisdiction. Rural freeway speed limits of 70 to 80 mph are common in the Western United States, while such highways are typically posted at 65 to 70 mph in the Eastern United States. States may also set separate speed limits for trucks and night travel along with minimum speed limits. The highest speed limit in the country is 85 mph, which is posted on a single stretch of tollway in rural Texas. The lowest maximum speed limit in the country is 30 miles per hour in American Samoa.
context_section_description: The highest speed limit in New Hampshire is 70 mph (110 km/h). It can be found on Interstate 93 from mile marker 45 to the Vermont border (excluding the Franconia Notch Parkway). All other freeways and turnpikes have a maximum of 65 mph (105 km/h). The minimum speed on Interstate Highways in New Hampshire is 45 mph (70 km/h) where posted.
  Provided that no hazard exists that requires lower speed, the speed of any vehicle not in excess of the limit is deemed to be prima facie lawful. The limit for "rural residential districts" and Class V highways outside the city or town compact is 35 mph (60 km/h). The limit for any "business or urban residence district" is 30 mph (50 km/h). School zones receive a 10 mph (20 km/h) reduction in the limit 45 minutes before and after the beginning and end of a school day. The speed limit for a road work or construction area is 10 mph (20 km/h) lower than the normal speed limit, but not more than 45 mph (70 km/h), when work is in progress. The speed limit for all other locations is 55 mph (90 km/h). The minimum limit that a speed can be set in a rural or urban district is 25 mph (40 km/h).
  The speed limit on Interstate 93 through Franconia Notch State Park falls to 45 mph (70 km/h) where the highway narrows to one lane in each direction, but rises back to 70 mph (110 km/h) (in 10 mph (20 km/h) increments going south) once the highway leaves Franconia Notch. Interstate 393 in Concord has a 55 mph (90 km/h) posted speed limit for its entire length, with the exception of 45 and 35 mph (70 and 60 km/h) zones on the westbound portion closest to the city center and the end of the highway. Interstate 293's speed limit through downtown Manchester falls to 50 mph (80 km/h) as it runs along the Merrimack River, but increases to 55 mph (90 km/h) on either side of the city center.
  Prior to 1974, the New Hampshire Turnpike, along with rural sections of Interstates 89 and 93, were posted at 70 mph (110 km/h).
caption: Antique New Hampshire speed limit sign
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