Dedham, MA truck route planning & crash data
Plan safer truck routes in Dedham: commercial truck and garbage truck crashes in Dedham and Norfolk County, dangerous roads, seasonality and route safety data for fleets. Patterns use Norfolk County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1.0 deaths per 100 garbage-truck crashes vs 1.8 for all trucks.
Deadliest roads
How Norfolk County compares with Massachusetts
Norfolk County against Massachusetts and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Norfolk County stands out
Full comparison
| Measure (2015–2025) | Norfolk County | Massachusetts | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 23.4 | 22.9 | 49.7 | same |
| Deaths per 100 crashes | 1.8 | 2.0 | 3.4 | 10% below the state |
| Injuries per crash | 0.48 | 0.46 | 0.49 | same |
| Garbage-truck share | 5.5% | 5.3% | 2.3% | same |
| On snow, slush or ice | 4.1% | 6.6% | 6.2% | 38% below the state |
| Morning rush (6–10 am) | 28.5% | 27.3% | 23.7% | same |
| In rain, sleet or snow | 11.5% | 13.2% | 13.8% | 12% below the state |
| Winter months (Nov–Mar) | 42.0% | 41.9% | 41.9% | same |
| After dark | 15.9% | 19.2% | 24.8% | 17% below the state |
Norfolk County sits below Massachusetts on deaths per 100 crashes, on snow, slush or ice and in rain, sleet or snow.
What stands out in Dedham: 1.5× fatal truck crashes within 10 miles of Dedham per year, 2020–24 vs 2016–19 (5.4 vs 3.5).
Overview
Norfolk County has recorded 2,034 truck crashes since 2015, with 980 people injured and 38 killed.
In complete reporting years that works out to about one truck crash every 2 days.
Dedham had 124 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Norfolk County numbers.
When crashes happen
June has the most truck crashes, 9.5% of the yearly total, while February has the fewest (6.9%).
Winter months (Nov–Mar) carry 42.0% of truck crashes, vs 41.9% for Massachusetts.
By time of day, 8–9 am stands out with 7.8% of truck crashes.
Snow, slush or ice was on the road in 4.1% of truck crashes, compared with 6.6% in Massachusetts.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of Dedham happened on I-95 (4), SR-2A (4), I-90 (3), Washington St (3) and Cambridge St (2); no road leads clearly.
Garbage & waste trucks
107 crashes involved a garbage or refuse truck, a 5.3% share (Massachusetts: 5.3%).
Garbage-truck crashes peak in September (12% of them).
Deaths per 100 garbage-truck crashes: 1.0, vs 1.8 for all truck crashes.
Route planning tips for Dedham fleets
- Plan June schedules with more margin; it is the worst month for truck crashes in Norfolk County.
- Garbage-truck crashes here peak in September; review collection routes for that month.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Norfolk County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-95 | 4 |
| SR-2A | 4 |
| I-90 | 3 |
| Washington St | 3 |
| Cambridge St | 2 |
| I-93 | 2 |
| Massachusetts Ave | 2 |
| Putnam Ave | 2 |
| SR-138 | 2 |
| SR-16 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Norfolk County) |
|---|---|
| Washington St | 29 |
| Main St | 19 |
| Rte 95 | 18 |
| Granite St | 12 |
| East St | 12 |
| Rte 93 | 12 |
| Central St | 9 |
| Washington Street | 9 |
Dedham at a glance
| Population | 25,485 |
| Land area | 10.3 sq mi |
| Density | 2,481 per sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Norfolk 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 | 72 | — | 3.3 |
| 2000s | 160 | +124% | 3.5 |
| 2010s | 200 | +25% | 1.9 |
| 2020s | 178 | -11% | 3.2 |
Reported truck crashes averaged 72 a year in the 1990s and 178 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.2 a year in 2016–19, 3.2 a year in 2020–24.
Nearby places
Questions fleets ask about Dedham
How many truck accidents are there in Dedham?
Since 2015, 2,034 crashes involving commercial trucks were reported in Norfolk County (980 injured, 38 killed).
Which month has the most truck crashes in Dedham?
Truck crashes in Norfolk County peak in June, with 9.5% of the year's crashes.
How many garbage truck accidents happen in Dedham?
107 crashes involving garbage or refuse trucks have been reported in Norfolk County since 2015, 5.3% of all truck crashes.
How does Dedham compare with Massachusetts for truck crashes?
Per 100,000 residents, Norfolk County has 23.4 truck crashes a year; Massachusetts has 22.9.
What is the best way to plan truck routes in Dedham?
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.