What do the New Hampshire State Police patrol that is approximately 17029 miles in length?
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.
Nashua River The Nashua River, 37.5 mi long, is a tributary of the Merrimack River in Massachusetts and New Hampshire in the United States. It is formed in eastern Worcester County, Massachusetts, by junction of its north and south branches near Lancaster, and flows generally north-northeast past Groton to join the Merrimack at Nashua, New Hampshire. The Nashua River Watershed occupies a major portion of north-central Massachusetts and a much smaller portion of southern New Hampshire.