PORTSMOUTH, Rockingham County, N.H., Oct. 2, 2026 — A motor vehicle crash with injuries was reported Thursday afternoon, October 1, at the intersection of Bypass Route 1 and Cottage Street in Portsmouth. The collision prompted a traffic alert urging drivers to use caution and expect delays in the area.
The crash was reported around 4 p.m., according to a regional traffic advisory.
Local traffic monitors flagged the intersection for backups following the crash and advised motorists to seek alternate routes.
The report remains under review. We wish those injured a swift and full recovery.
Car Crashes at Busy Intersections: What the Numbers Show
According to the National Highway Traffic Safety Administration, passenger vehicles made up 92 percent of registered vehicles and 89 percent of vehicle miles traveled in 2023. That means the vast majority of crashes recorded nationwide, including those at busy junctions like highway bypasses merging with local streets, involve everyday passenger cars and SUVs rather than commercial trucks or motorcycles.
Intersections where a bypass or state highway meets a local road tend to see more crashes than open stretches of highway. Traffic moves at different speeds, turning movements increase, and drivers have less time to react to a vehicle stopping or merging unexpectedly.
Because passenger vehicles account for so much of the driving population, the patterns seen in intersection crashes largely reflect ordinary commuting and errand traffic rather than unusual circumstances. Most of these collisions involve routine decisions, following distance, turn timing, and speed, made in the seconds before impact.
Frequently Asked Questions
Where do most traffic accidents happen?
A large share of crashes occur at or near intersections, where turning, merging, and crossing traffic increase the chance of a collision compared to open road segments.
How can drivers reduce their crash risk?
Maintaining safe following distance, obeying posted speed limits, and staying alert near intersections and merge points are among the most effective everyday habits for avoiding a crash.
What injuries are most common in car accidents?
Neck and back strain, concussions, and bruising from seatbelts or airbags are frequently reported after collisions, even at moderate speeds.
What are the most common causes of car accidents?
Distracted driving, following too closely, failure to yield, and misjudging another driver's speed are among the leading factors cited in crash reports.
What to Do After a Car Accident in Portsmouth, NH
If you're involved in a crash in Portsmouth, move to a safe location if possible and check for injuries before doing anything else. Call 911 to report the collision and request medical evaluation, even if injuries aren't immediately obvious, since some symptoms take hours to appear.
Exchange information with other drivers involved and take photos of the scene if it's safe to do so. Request a copy of the official police report once it's available, and follow up with a doctor if you notice pain, stiffness, or headaches in the days after the crash.