Allenstown, NH truck route planning & crash data
Plan safer truck routes in Allenstown: commercial truck and garbage truck crashes in Allenstown and Merrimack County, dangerous roads, seasonality and route safety data for fleets. Patterns use Merrimack County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0.0 deaths per 100 garbage-truck crashes vs 3.0 for all trucks.
Deadliest roads
How Merrimack County compares with New Hampshire
Merrimack County against New Hampshire and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Merrimack County stands out
Full comparison
| Measure (2015–2025) | Merrimack County | New Hampshire | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 42.2 | 30.4 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 3.0 | 2.6 | 3.4 | 1.2× the state |
| Injuries per crash | 0.37 | 0.39 | 0.49 | same |
| Garbage-truck share | 2.9% | 4.2% | 2.3% | 31% below the state |
| On snow, slush or ice | 23.5% | 20.2% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 29.8% | 29.3% | 23.7% | same |
| In rain, sleet or snow | 24.6% | 22.8% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 47.4% | 47.6% | 41.9% | same |
| After dark | 17.1% | 16.3% | 24.8% | same |
Compared with New Hampshire, Merrimack County is lower on garbage-truck share. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
Allenstown at a glance: I-93 deadliest road: 3 fatal truck crashes within 10 miles of Allenstown since 2015.
Overview
Merrimack County has recorded 761 truck crashes since 2015, with 277 people injured and 22 killed.
That averages about one truck crash every 5 days in fully reported years.
With 2 truck crashes reported in Allenstown since 2015, this page uses Merrimack County numbers for its patterns and comparisons.
When crashes happen
The worst month is February with 12.5% of truck crashes; the quietest is May at 6.6%.
Winter months (Nov–Mar) carry 47.4% of truck crashes, vs 47.6% for New Hampshire.
The busiest hour is 10–11 am, with 8.5% of truck crashes.
Snow, slush or ice was on the road in 23.5% of truck crashes, compared with 20.2% in New Hampshire.
Where crashes happen
I-93 leads within 10 miles of Allenstown with 3 fatal crashes involving a large truck since 2015. Next come SR-4 (2), SR-107 (1) and SR-3A (1).
Garbage & waste trucks
21 crashes involved a garbage or refuse truck, a 2.8% share (New Hampshire: 4.2%).
Garbage-truck crashes peak in July (24% of them).
They recorded 0.0 deaths per 100 crashes, against 3.0 for all trucks.
Route planning tips for Allenstown fleets
- Review driver schedules for February, the month with the most truck crashes.
- Where you can, review stops along I-93; it has the most fatal large-truck crashes nearby.
- For residential and commercial waste routes, look again at July schedules: garbage-truck crashes peak then.
- Icy and snowy roads show up in 23.5% of truck crashes here, more than New Hampshire; schedule winter checks early.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Merrimack County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-93 | 3 |
| SR-4 | 2 |
| SR-107 | 1 |
| SR-3A | 1 |
| US-4 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Merrimack County) |
|---|---|
| SR-3A | 9 |
| Dover Rd | 9 |
| N/Everett Tpk | 5 |
| Manchester St | 4 |
| N & Exit 3 | 4 |
| Hooksett Rd | 3 |
| I 89 N Mm 28.6 | 3 |
| I 89 S Mm 21.8 2 Miles N Of Exit 9 | 3 |
Allenstown at a glance
| Population | 4,765 |
| Land area | 20.5 sq mi |
| Density | 233 per sq mi |
| Median household income (ZIP 03275) | $82,910 |
| Median home value (ZIP 03275) | $322,414 |
Waste facilities and haulers nearby
Historical data: truck crashes in Merrimack County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 33 | — | 0.8 |
| 2000s | 49 | +46% | 1.8 |
| 2010s | 58 | +20% | 1.0 |
| 2020s | 64 | +9% | 1.6 |
Reported truck crashes averaged 33 a year in the 1990s and 64 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 1.8 a year in 2016–19 and 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Allenstown
How common are truck crashes in Allenstown?
761 truck crashes have been reported in Merrimack County since 2015, with 22 deaths and 277 injuries.
Which road has the most fatal truck crashes in Allenstown?
I-93 had 3 fatal crashes involving a large truck within 10 miles of Allenstown since 2015, more than any other road.
Which month has the most truck crashes in Allenstown?
Truck crashes in Merrimack County peak in February, with 12.5% of the year's crashes.
How many garbage truck accidents happen in Allenstown?
21 crashes involving garbage or refuse trucks have been reported in Merrimack County since 2015, 2.8% of all truck crashes.
What is the truck crash rate in Allenstown compared with New Hampshire?
Per 100,000 residents, Merrimack County has 42.2 truck crashes a year; New Hampshire has 30.4.
How can I plan a safer truck route in Allenstown?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.