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Air Rail Highway Bike/Ped Public Transit


For Immediate Release
June 10, 2016
Ron Grandmaison, Highway Design Bureau, 603-271-2171
Bill Boynton, Public Information Office, 603-271-6495
Rumble Strips Being Installed for Highway Safety
Corridor Work Include NH Routes 9, 102, 28, and 3A

As part of an ongoing effort to improve highway safety for motorists on non-divided highways, the New Hampshire Department of Transportation (NHDOT) is installing shoulder and centerline rumble strips (also known as rumble stripes) on four sections of state highways that have been identified in safety reviews..

These highway corridors receiving shoulder and centerline rumble strips include:

  • NH Route 28 – Ossipee to Allenstown
  • NH Route 3A – Plymouth to Hudson
  • NH Route 102 – Raymond to Nashua
  • NH Route 9 – Concord to Chesterfield

Run-off-the-road crashes and head-on collisions due to fatigued, inattentive, or otherwise impaired drivers are a major contributor to New Hampshire's fatal and injury crashes. Rumble strips are one of the nine proven low-cost safety measures that Departments of Transportation can implement to address crashes that occur in the focus areas of intersections, pedestrians, and roadway departure.

According to national statistics, the installation of centerline rumble strips have resulted in a 44% reduction in head-on crashes on rural two-lane roads, and a 64% reduction of head-on crashes on urban two-lane roads. Shoulder rumble strips result in a 36% reduction in run-off-road fatal and injury crashes. Rumble strips also decrease centerline/edge line encroachments and reduce corner cutting.

A NHDOT safety review of the US 202/NH 9 corridor in Henniker and Hopkinton before (2004-2007) and after (2009-2013) centerline rumble strips were added found that total crashes dropped by one-third (33.16%). Injury and fatal crashes were reduced by 46% after the rumble strips were installed.

L & D Safety Marking Corporation, of Barre, Vermont is the contractor for the $384,700 rumble strip installation project.

For more information on the benefits of rumble strips (stripes), visit

New Hampshire Department of Transportation
PO Box 483 | 7 Hazen Drive | Concord, NH | 03302-0483
Tel: 603.271-3734 | Fax: 603.271.3914

copyright 2015. State of New Hampshire