Deerfield, NH truck route planning & crash data
Plan safer truck routes in Deerfield: commercial truck and garbage truck crashes in Deerfield and Rockingham County, dangerous roads, seasonality and route safety data for fleets. Patterns use Rockingham County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1.6 deaths per 100 garbage-truck crashes vs 1.4 for all trucks.
Deadliest roads
How Rockingham County compares with New Hampshire
Rockingham County against New Hampshire and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Rockingham County stands out
Full comparison
| Measure (2015–2025) | Rockingham County | New Hampshire | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 36.3 | 30.4 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 1.4 | 2.6 | 3.4 | 46% below the state |
| Injuries per crash | 0.39 | 0.39 | 0.49 | same |
| Garbage-truck share | 4.9% | 4.2% | 2.3% | 1.2× the state |
| On snow, slush or ice | 17.1% | 20.2% | 6.2% | 15% below the state |
| Morning rush (6–10 am) | 28.3% | 29.3% | 23.7% | same |
| In rain, sleet or snow | 20.2% | 22.8% | 13.8% | 11% below the state |
| Winter months (Nov–Mar) | 47.0% | 47.6% | 41.9% | same |
| After dark | 17.8% | 16.3% | 24.8% | 1.1× the state |
Rockingham County sits below New Hampshire on deaths per 100 crashes, on snow, slush or ice and in rain, sleet or snow. It runs above New Hampshire on crashes per 100k residents / yr, garbage-truck share and after dark.
Rockingham County at a glance: 1.4 deaths for every 100 truck crashes, against 2.6 across New Hampshire.
Overview
Police reported 1,352 crashes involving commercial trucks in Rockingham County since 2015: 530 people were injured and 19 were killed.
That averages about one truck crash every 3 days in fully reported years.
Deerfield had 1 reported truck crash since 2015, too few for reliable patterns, so the charts and findings on this page use Rockingham County numbers.
When crashes happen
The worst month is February with 11.4% of truck crashes; the quietest is September at 6.4%.
The five winter months (November to March) hold 47.0% of truck crashes, against 47.6% across New Hampshire.
The busiest hour is 1–2 pm, with 8.3% of truck crashes.
Snow, slush or ice was on the road in 17.1% of truck crashes, compared with 20.2% in New Hampshire.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Deerfield since 2015: US-4 (2) and SR-107 (1). No single road stands out.
Garbage & waste trucks
Garbage and refuse trucks were involved in 64 crashes, 4.7% of the total, against 4.2% across New Hampshire.
The most garbage-truck crashes happen in February (12%).
Per 100 crashes, garbage trucks recorded 1.6 deaths compared with 1.4 for all trucks.
Route planning tips for Deerfield fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Rockingham County.
- Garbage-truck crashes here peak in February; review collection routes for that month.
- 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 Rockingham County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-4 | 2 |
| SR-107 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Rockingham County) |
|---|---|
| Calef Hwy | 11 |
| Plaistow Rd | 8 |
| SR-101 | 7 |
| Lafayette Rd | 7 |
| Ocean Rd | 6 |
| Main St | 6 |
| Indian Rock Rd | 5 |
| E/Exeter-Hampton Expy | 4 |
Deerfield at a glance
| Population | 4,983 |
| Land area | 50.8 sq mi |
| Density | 98 per sq mi |
| Median household income (ZIP 03037) | $130,371 |
| Median home value (ZIP 03037) | $431,768 |
Waste facilities and haulers nearby
Historical data: truck crashes in Rockingham 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 | 62 | — | 2.6 |
| 2000s | 87 | +39% | 2.2 |
| 2010s | 113 | +30% | 1.5 |
| 2020s | 106 | -6% | 2.0 |
In the 1990s about 62 truck crashes a year were reported; in the 2020s, about 106. Reporting coverage also changed between these periods. Fatal large-truck crashes: 1.0 a year in 2016–19, 2.0 a year in 2020–24.
Nearby places
Questions fleets ask about Deerfield
How many truck crashes happen in Deerfield?
1,352 truck crashes have been reported in Rockingham County since 2015, with 19 deaths and 530 injuries.
What is the worst month for truck crashes in Deerfield?
Truck crashes in Rockingham County peak in February, with 11.4% of the year's crashes.
How many garbage truck accidents happen in Deerfield?
Garbage trucks were involved in 64 reported crashes in Rockingham County since 2015 (4.7% of truck crashes).
What is the truck crash rate in Deerfield compared with New Hampshire?
Rockingham County records 36.3 truck crashes per 100,000 residents a year, against 30.4 across New Hampshire.
What is the best way to plan truck routes in Deerfield?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.