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US Route 3
Fatal crashes 2015–2024 52Deaths 59Counties 5Latest data year 2024
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Latest data year: 2024. The route is the trafficway recorded for each crash (FARS TWAY_ID); the same route number in another state has its own page.
US Route 3 in New Hampshire was the trafficway in 52 fatal crashes between 2015 and 2024, in which 59 people died.
That is 4.6% of the 1,135 fatal crashes in New Hampshire over the same years. The ten-year crash count rose 247% from 15 in 2005–2014 to 52 in 2015–2024.
The crashes were concentrated in Merrimack County (17), Belknap County (12) and Coos County (9) and 2 other counties.
28.8% of the crashes had a driver reported as drinking (New Hampshire: 32.7%) and 34.6% had a speeding-related driver (39.9%); pedestrians were 18.6% and motorcyclists 16.9% of those killed.
Fatal crashes per year
Route identification in FARS is consistent from 2000; earlier years are not shown. Shaded band: the ten-year window used for the shares below.
Compared with all fatal crashes in New Hampshire
| Measure | US Route 3 | New Hampshire |
|---|---|---|
| Fatal crashes, 2015–2024 | 52 | 1,135 |
| Deaths, 2015–2024 | 59 | 1,228 |
| Deaths per fatal crash | 1.1 | 1.1 |
| Share of state fatal crashes | 4.6% | 100% |
| Change vs previous ten years | +247% | 0% |
Factor shares
Counties along the route
| # | County | Fatal crashes on US-3 | Share of route | County total, all roads |
|---|---|---|---|---|
| 1 | Merrimack County | 17 | 33% | 164 |
| 2 | Belknap County | 12 | 23% | 81 |
| 3 | Coos County | 9 | 17% | 44 |
| 4 | Hillsborough County | 9 | 17% | 246 |
| 5 | Grafton County | 5 | 10% | 91 |
Hour of day
Share of fatal crashes on US Route 3 beginning in each hour, 2015–2024; tick marks the New Hampshire share for all roads.
Other routes in New Hampshire
- Interstate 93 86
- State Route 16 43
- State Route 101 39
- State Route 28 37
- State Route 11 33
- State Route 125 28
- State Route 9 21
All routes and counties in New Hampshire
Questions and answers
How many fatal crashes have there been on US Route 3 in New Hampshire?
52 fatal crashes with 59 deaths over 2015–2024, per NHTSA's FARS. The route is the trafficway recorded for the crash; the same numbered route in another state has its own page.
Which counties along US Route 3 had the most fatal crashes?
Merrimack County (17), Belknap County (12), Coos County (9), Hillsborough County (9) and Grafton County (5).
What share of crashes on US Route 3 involved alcohol or speeding?
28.8% had a driver reported as drinking and 34.6% a speeding-related driver, against 32.7% and 39.9% for all fatal crashes in New Hampshire.
When do fatal crashes happen on US Route 3?
42.3% of the crashes were between 6pm and 6am. The hour chart on this page shows the full distribution.
Provenance
Source: NHTSA Fatality Analysis Reporting System, annual national CSV files 2000–2024 (accident, vehicle and person tables), public domain. Route pages are built for signed Interstate, US and state routes with at least 20 fatal crashes in 2015–2024. Data through 31 Dec 2024; generated 30 Sep 2026. See methodology and corrections.