South Dennis, MA truck route planning & crash data
Plan safer truck routes in South Dennis: commercial truck and garbage truck crashes in South Dennis and Barnstable County, dangerous roads, seasonality and route safety data for fleets. Patterns use Barnstable 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 2.6 for all trucks.
Deadliest roads
How Barnstable County compares with Massachusetts
Barnstable County against Massachusetts and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Barnstable County stands out
Full comparison
| Measure (2015–2025) | Barnstable County | Massachusetts | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 21.0 | 22.9 | 49.7 | 8% below the state |
| Deaths per 100 crashes | 2.6 | 2.0 | 3.4 | 1.3× the state |
| Injuries per crash | 0.53 | 0.46 | 0.49 | 1.2× the state |
| Garbage-truck share | 5.8% | 5.3% | 2.3% | 1.1× the state |
| On snow, slush or ice | 4.3% | 6.6% | 6.2% | 35% below the state |
| Morning rush (6–10 am) | 34.1% | 27.3% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 9.1% | 13.2% | 13.8% | 31% below the state |
| Winter months (Nov–Mar) | 33.0% | 41.9% | 41.9% | 21% below the state |
| After dark | 8.6% | 19.2% | 24.8% | 55% below the state |
Barnstable County sits below Massachusetts on crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow. It stands out for higher deaths per 100 crashes, injuries per crash and garbage-truck share.
The headline for South Dennis: US-6 deadliest road: 2 fatal truck crashes within 10 miles of South Dennis since 2015.
Overview
Barnstable County has recorded 569 truck crashes since 2015, with 298 people injured and 14 killed.
In complete reporting years that works out to about one truck crash every 7 days.
Only 0 truck crashes were reported in South Dennis since 2015; patterns below come from Barnstable County as a whole.
When crashes happen
June has the most truck crashes, 12.8% of the yearly total, while November has the fewest (4.0%).
November through March accounts for 33.0% of truck crashes here, compared with 41.9% in Massachusetts.
The busiest hour is 8–9 am, with 11.2% of truck crashes.
Road surface: 4.3% of truck crashes were on snow, slush or ice (Massachusetts: 6.6%).
Where crashes happen
Within this area, US-6 had the most fatal crashes involving a large truck since 2015 (2). After it: Old Bass River Rd (1), Old Chatham Rd (1) and SR-28 (1).
Garbage & waste trucks
34 crashes involved a garbage or refuse truck, a 6.0% share (Massachusetts: 5.3%).
The most garbage-truck crashes happen in June (24%).
They recorded 0.0 deaths per 100 crashes, against 2.6 for all trucks.
Route planning tips for South Dennis fleets
- Review driver schedules for June, the month with the most truck crashes.
- Where you can, review stops along US-6; it has the most fatal large-truck crashes nearby.
- For residential and commercial waste routes, look again at June schedules: garbage-truck crashes peak then.
- Morning starts matter: 34.1% of truck crashes fall between 6 and 10 am, higher than Massachusetts.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Barnstable County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-6 | 2 |
| Old Bass River Rd | 1 |
| Old Chatham Rd | 1 |
| SR-28 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Barnstable County) |
|---|---|
| Sandwich Rd | 13 |
| Macarthur Blvd | 12 |
| Rte 6 | 7 |
| Main St | 6 |
| Iyannough Rd | 5 |
| Rte 25 Eb Mm 9 | 5 |
| Scenic Hwy | 5 |
| Falmouth Rd Rte 28 | 4 |
South Dennis at a glance
| Land area | 4.5 sq mi |
| Median household income (ZIP 02660) | $93,386 |
| Median home value (ZIP 02660) | $554,110 |
Waste facilities and haulers nearby
Historical data: truck crashes in Barnstable 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 | 12 | — | 1.3 |
| 2000s | 35 | +201% | 1.8 |
| 2010s | 58 | +67% | 0.9 |
| 2020s | 46 | -21% | 2.0 |
In the 1990s about 12 truck crashes a year were reported; in the 2020s, about 46. Reporting coverage also changed between these periods. NHTSA counts 1.5 fatal large-truck crashes a year in 2016–19 and 2.0 a year in 2020–24.
Nearby places
Questions fleets ask about South Dennis
How many truck accidents are there in South Dennis?
569 truck crashes have been reported in Barnstable County since 2015, with 14 deaths and 298 injuries.
What is the most dangerous road for trucks in South Dennis?
NHTSA data shows US-6 with 2 fatal large-truck crashes within 10 miles of South Dennis since 2015, the highest of any road.
Which month has the most truck crashes in South Dennis?
June has the most truck crashes in Barnstable County, 12.8% of the yearly total.
How many garbage truck crashes are there in South Dennis?
Garbage trucks were involved in 34 reported crashes in Barnstable County since 2015 (6.0% of truck crashes).
What is the truck crash rate in South Dennis compared with Massachusetts?
The yearly rate is 21.0 truck crashes per 100,000 residents in Barnstable County, vs 22.9 for Massachusetts.
How can I plan a safer truck route in South Dennis?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.