I-93 in New Hampshire: fatal crashes
From 2015 to 2024, 82 fatal crashes on I-93 in New Hampshire killed 86 people, the most of any numbered road in New Hampshire. In 2024 there were 7 fatal crashes and 7 deaths on the road.
An interstate running through 5 counties of New Hampshire. All fatal crashes in New Hampshire. I-93 in every state.
Deaths on I-93 in New Hampshire by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 7 | 7 |
| 2023 | 9 | 9 |
| 2022 | 11 | 11 |
| 2021 | 7 | 9 |
| 2020 | 3 | 3 |
| 2019 | 3 | 3 |
| 2018 | 13 | 14 |
| 2017 | 8 | 8 |
| 2016 | 14 | 14 |
| 2015 | 7 | 8 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-93 in New Hampshire: the counties with the most fatal crashes
Merrimack County had the most fatal crashes on I-93 from 2015 to 2024: 26, with 27 deaths. Merrimack, Grafton and Rockingham counties together held 79% of fatal crashes on I-93 in New Hampshire from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Merrimack County | 2 | 26 | 27 |
| 2 | Grafton County | 1 | 21 | 22 |
| 3 | Rockingham County | 3 | 18 | 20 |
| 4 | Belknap County | 0 | 9 | 9 |
| 5 | Hillsborough County | 1 | 8 | 8 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen on I-93 in New Hampshire
82 fatal crashes on I-93 in New Hampshire from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 6 pm to 7 pm; the worst month is November.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 3.7 percent, 3 fatal crashes | 1.2 percent, 1 fatal crash | 1.2 percent, 1 fatal crash | 1.2 percent, 1 fatal crash | 3.7 percent, 3 fatal crashes | 3.7 percent, 3 fatal crashes |
| Mon | 1.2 percent, 1 fatal crash | 4.9 percent, 4 fatal crashes | 1.2 percent, 1 fatal crash | 1.2 percent, 1 fatal crash | 4.9 percent, 4 fatal crashes | 1.2 percent, 1 fatal crash |
| Tue | 0.0 percent, 0 fatal crashes | 2.4 percent, 2 fatal crashes | 2.4 percent, 2 fatal crashes | 1.2 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.4 percent, 2 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 3.7 percent, 3 fatal crashes | 2.4 percent, 2 fatal crashes | 4.9 percent, 4 fatal crashes | 3.7 percent, 3 fatal crashes | 3.7 percent, 3 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 1.2 percent, 1 fatal crash | 2.4 percent, 2 fatal crashes | 3.7 percent, 3 fatal crashes | 2.4 percent, 2 fatal crashes | 1.2 percent, 1 fatal crash |
| Fri | 0.0 percent, 0 fatal crashes | 2.4 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 8.5 percent, 7 fatal crashes | 3.7 percent, 3 fatal crashes | 4.9 percent, 4 fatal crashes |
| Sat | 1.2 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 1.2 percent, 1 fatal crash | 2.4 percent, 2 fatal crashes | 8.5 percent, 7 fatal crashes | 0.0 percent, 0 fatal crashes |
By hour
By month
- Jan4.9%
- Feb2.4%
- Mar6.1%
- Apr7.3%
- May8.5%
- Jun11.0%
- Jul9.8%
- Aug11.0%
- Sep6.1%
- Oct9.8%
- Nov14.6%
- Dec8.5%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Fatal crashes per mile on I-93 in New Hampshire
6.2 fatal crashes a year per 100 miles over 2015 to 2024, on 132 miles of I-93 in New Hampshire, against 6.2 for all interstates in New Hampshire. That ranks 1 of 1 interstates in New Hampshire and 113 of 172 interstate pages on this site.
Mileage from the FHWA Interstate route log (table 1), the only figure here not counted from FARS. Crashes per mile of road, not per vehicle: FARS records crashes, not traffic.
What fatal crashes on I-93 in New Hampshire first hit
The first harmful event was a fixed object such as a tree, pole or barrier in most fatal crashes, 59%; a collision with another vehicle in 17%, a rollover in 15%, a parked vehicle in 3.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Fixed object (tree, pole, barrier, ditch) | 48 | 59% |
| Collision with another vehicle | 14 | 17% |
| Rollover | 12 | 15% |
| Parked vehicle | 3 | 3.7% |
| Other | 3 | 3.7% |
| Pedestrian | 2 | 2.4% |
| Cyclist | 0 | 0.0% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes on I-93 in New Hampshire compare with the state
The largest difference from New Hampshire: from 2015 to 2024, 0.0% of fatal crashes on I-93 in New Hampshire were at or near an intersection, against 18% across New Hampshire. Also above the New Hampshire share: unlit roads at night. Below it: distracted drivers. Shares of fatal crashes from 2015 to 2024, against the share across all of New Hampshire. A share is only given over 20 crashes; above or below means more than chance would give on 82 crashes.
| I-93 | New Hampshire | ||
|---|---|---|---|
| On rural stretches | 54% | 53% | about the same as the New Hampshire share |
| At or near an intersection | 0.0% | 18% | below the New Hampshire share |
| In the dark, road unlit | 40% | 25% | above the New Hampshire share |
| A drinking driver | 24% | 33% | about the same as the New Hampshire share |
| Speeding | 44% | 40% | about the same as the New Hampshire share |
| A distracted driver (as recorded) | 0.0% | 6.7% | below the New Hampshire share |
| Occupants killed unbelted | 73% | 69% | about the same as the New Hampshire share |
| Hit-and-run | 0.0% | 1.8% | about the same as the New Hampshire share |
| A motorcycle involved | 16% | 23% | about the same as the New Hampshire share |
| Pedestrians among the dead | 4.7% | 9.7% | about the same as the New Hampshire share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes on I-93 in New Hampshire
- How many fatal crashes have there been on I-93 in New Hampshire?
- 82 fatal crashes killed 86 people on I-93 in New Hampshire from 2015 to 2024. In 2024 there were 7 fatal crashes and 7 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on I-93 in New Hampshire do the most fatal crashes happen?
- Merrimack County had the most fatal crashes on I-93 from 2015 to 2024: 26, with 27 deaths. Grafton County was second with 21.
- How dangerous is I-93 in New Hampshire per mile?
- 6.2 fatal crashes a year per 100 miles over 2015 to 2024, on 132 miles of road, against 6.2 for all interstates in New Hampshire. That ranks 1 of 1 interstates in New Hampshire and 113 of 172 interstate pages on this site. FARS records crashes, not traffic, so this is crashes per mile of road, not per vehicle.
Other roads in New Hampshire with a page
All fatal crashes in New Hampshire, with every road ranked.
Where the I-93 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-93 in New Hampshire. Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.