Sullivan County, NH truck route planning & crash data
Plan safer truck routes in Sullivan County: commercial truck and garbage truck crashes, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2 of 127 truck crashes since 2015.
Deadliest roads
How Sullivan County compares with New Hampshire
Sullivan County against New Hampshire and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sullivan County stands out
Full comparison
| Measure (2015–2025) | Sullivan County | New Hampshire | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 25.4 | 30.4 | 49.7 | 16% below the state |
| Deaths per 100 crashes | 8.1 | 2.6 | 3.4 | 3.1× the state |
| Injuries per crash | 0.50 | 0.39 | 0.49 | 1.3× the state |
| Garbage-truck share | 1.6% | 4.2% | 2.3% | 61% below the state |
| On snow, slush or ice | 30.1% | 20.2% | 6.2% | 1.5× the state |
| Morning rush (6–10 am) | 27.6% | 29.3% | 23.7% | same |
| In rain, sleet or snow | 31.7% | 22.8% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 56.1% | 47.6% | 41.9% | 1.2× the state |
| After dark | 11.4% | 16.3% | 24.8% | 30% below the state |
Sullivan County sits below New Hampshire on crashes per 100k residents / yr, garbage-truck share and after dark. Where it is higher: deaths per 100 crashes, injuries per crash and on snow, slush or ice.
Sullivan County at a glance: 8.1 deaths per 100 truck crashes, vs 2.6 in New Hampshire.
Overview
Sullivan County has recorded 127 truck crashes since 2015, with 62 people injured and 10 killed.
That averages about one truck crash every 33 days in fully reported years.
When crashes happen
March has the most truck crashes, 15.0% of the yearly total, while August has the fewest (2.4%).
November through March accounts for 56.1% of truck crashes here, compared with 47.6% in New Hampshire.
More truck crashes happen at 1–2 pm than at any other hour (11.0%).
30.1% of truck crashes here happened on snow, slush or ice, against 20.2% across New Hampshire.
Where crashes happen
The deadliest road for trucks in Sullivan County is SR-12, with 3 fatal large-truck crashes since 2015. It is followed by SR-12A (2) and SR-11 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.6% of the total, against 4.2% across New Hampshire.
Route planning tips for Sullivan County fleets
- Plan March schedules with more margin; it is the worst month for truck crashes in Sullivan County.
- Where you can, review stops along SR-12; it has the most fatal large-truck crashes nearby.
- Icy and snowy roads show up in 30.1% of truck crashes here, more than New Hampshire; schedule winter checks early.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Sullivan County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Sullivan County) |
|---|---|
| SR-12 | 3 |
| SR-12A | 2 |
| SR-11 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sullivan County) |
|---|---|
| S Main St | 4 |
| Main St | 3 |
| Bellows Falls Rd | 2 |
| Ft S Of 89 N & 47.4 | 2 |
| Intersection Of 2Nd Nh Tpk & Nh Rt 10 | 2 |
| N Mm 40 | 2 |
| Sunapee St | 2 |
| Washington St | 2 |
Sullivan County at a glance
| Population | 44,012 |
| Land area | 537.9 sq mi |
| Density | 82 per sq mi |
| Median household income (ZIP average) | $78,993 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sullivan 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 | 9 | — | 0.5 |
| 2000s | 10 | +11% | 0.4 |
| 2010s | 11 | +11% | 0.3 |
| 2020s | 13 | +20% | 0.8 |
From the 1990s to the 2020s, yearly reported truck crashes went from 9 to 13. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.5 a year in 2016–19, 0.8 a year in 2020–24.
Cities, towns & communities in Sullivan County
ZIP codes in Sullivan County
Nearby counties
Questions fleets ask about Sullivan County
How common are truck crashes in Sullivan County?
127 truck crashes have been reported in Sullivan County since 2015, with 10 deaths and 62 injuries.
Which road has the most fatal truck crashes in Sullivan County?
NHTSA data shows SR-12 with 3 fatal large-truck crashes in Sullivan County since 2015, the highest of any road.
Which month has the most truck crashes in Sullivan County?
March has the most truck crashes in Sullivan County, 15.0% of the yearly total.
Are garbage truck crashes common in Sullivan County?
Garbage trucks were involved in 2 reported crashes in Sullivan County since 2015 (1.6% of truck crashes).
How do truck crashes in Sullivan County compare with New Hampshire?
Sullivan County records 25.4 truck crashes per 100,000 residents a year, against 30.4 across New Hampshire.
How do I plan a garbage truck route in Sullivan County?
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.