EXETER, Rockingham County, N.H., Oct. 7, 2026 — A motor vehicle crash with injuries was reported Tuesday afternoon, October 6, on Route 101 westbound in Exeter, according to a traffic advisory. The collision was reported near mile marker 83.0.
The advisory, issued at 3:19 p.m., urged drivers to use caution in the area and warned of likely delays.
Investigators continue reviewing the crash. We wish those injured a swift and full recovery.
What Makes a Highway Crash on a Road Like Rte 101 So Severe
Closing speed is the main reason a crash on a divided highway can cause more harm than one on a local street. Vehicles traveling near highway speed limits carry far more kinetic energy than vehicles in slower traffic, and that energy has to go somewhere in a collision, whether it's absorbed by the vehicles' structures or transferred to the people inside.
Weight differences between vehicles matter too. A heavier vehicle will push a lighter one back or to the side in a collision, and the occupants of the smaller vehicle generally take on more of the force. Modern vehicles are built with crumple zones at the front and rear meant to absorb impact, but the passenger cabin is designed to stay rigid, which is why side impacts and underride-type collisions tend to cause more harm than a straight-on hit to the front crumple zone.
Merge points and interchanges concentrate this risk because they force vehicles moving at different speeds to occupy the same lane in a short span of road. A car accelerating onto a highway and a car already moving at speed have only a few seconds to adjust, and any misjudged gap or sudden brake can turn into a collision before either driver reacts. Airbags and seatbelts reduce the chance of being thrown inside the vehicle, but they cannot change how much energy a crash releases in the first place.
Frequently Asked Questions
How do weather and road conditions affect crash risk?
Rain, fog, and debris reduce tire grip and visibility, which extends stopping distance and makes it harder for drivers to react to sudden slowdowns, especially at highway speeds.
What should I do right after a car accident?
Move to a safe spot if possible, check for injuries, call 911, and exchange information with other drivers. Photograph the scene if it's safe to do so and wait for law enforcement to arrive.
Where do most traffic crashes happen?
Crashes cluster at intersections, interchanges, and merge points, where vehicles moving at different speeds or directions cross paths in a short stretch of road.
What to Do After a Car Accident in Exeter, NH
If you're involved in a crash in Exeter, call 911 right away and stay as far from moving traffic as conditions allow. Even if injuries seem minor, a medical evaluation is worth getting, since some injuries don't show symptoms right away. Keep a copy of the police report and any paperwork from the scene for your records. Giving yourself time to rest and follow up with a doctor afterward can make a real difference in recovery.
