ZIP 01432 (Ayer, MA) truck route planning & crash data
Plan safer truck routes around ZIP 01432: commercial truck and garbage truck crashes here and in Middlesex County, 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
1.2 deaths per 100 garbage-truck crashes vs 1.7 for all trucks.
Deadliest roads
How Middlesex County compares with Massachusetts
Middlesex County against Massachusetts and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Middlesex County stands out
Full comparison
| Measure (2015–2025) | Middlesex County | Massachusetts | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 23.2 | 22.9 | 49.7 | same |
| Deaths per 100 crashes | 1.7 | 2.0 | 3.4 | 15% below the state |
| Injuries per crash | 0.41 | 0.46 | 0.49 | 11% below the state |
| Garbage-truck share | 5.7% | 5.3% | 2.3% | 1.1× the state |
| On snow, slush or ice | 6.2% | 6.6% | 6.2% | 7% below the state |
| Morning rush (6–10 am) | 30.4% | 27.3% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 11.8% | 13.2% | 13.8% | 10% below the state |
| Winter months (Nov–Mar) | 42.4% | 41.9% | 41.9% | same |
| After dark | 17.5% | 19.2% | 24.8% | 9% below the state |
Middlesex County has lower values than Massachusetts for deaths per 100 crashes, injuries per crash and on snow, slush or ice. It stands out for higher garbage-truck share and morning rush (6–10 am).
What stands out in ZIP 01432: I-495 deadliest road: 4 fatal truck crashes within 10 miles of ZIP 01432 since 2015.
Overview
Police reported 4,505 crashes involving commercial trucks in Middlesex County since 2015: 1,863 people were injured and 73 were killed.
In complete reporting years that works out to about 1 truck crash a day.
When crashes happen
Truck crashes peak in January (9.5% of the year) and are lowest in April (6.9%).
November through March accounts for 42.4% of truck crashes here, compared with 41.9% in Massachusetts.
By time of day, 8–9 am stands out with 9.1% of truck crashes.
Road surface: 6.2% of truck crashes were on snow, slush or ice (Massachusetts: 6.6%).
Where crashes happen
Within this area, I-495 had the most fatal crashes involving a large truck since 2015 (4). After it: I-190 (2), Littleton Rd (1) and SR-110 (1).
Garbage & waste trucks
Garbage trucks account for 255 of the truck crashes here, or 5.7%, compared with 5.3% in Massachusetts.
The most garbage-truck crashes happen in November (12%).
Deaths per 100 garbage-truck crashes: 1.2, vs 1.7 for all truck crashes.
Route planning tips for ZIP 01432 fleets
- Review driver schedules for January, the month with the most truck crashes.
- Where you can, review stops along I-495; it has the most fatal large-truck crashes nearby.
- Waste haulers: November is the peak month for garbage-truck crashes in Middlesex County.
- Morning starts matter: 30.4% of truck crashes fall between 6 and 10 am, higher than Massachusetts.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Middlesex County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-495 | 4 |
| I-190 | 2 |
| Littleton Rd | 1 |
| SR-110 | 1 |
| SR-2A | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Middlesex County) |
|---|---|
| Main St | 52 |
| Rte 495 | 24 |
| Washington St | 19 |
| Ballardvale St | 19 |
| Main Street | 16 |
| Boston Post Rd | 16 |
| Rte 90 E X 123 | 15 |
| Lowell St | 13 |
ZIP 01432 at a glance
| Population | 8,521 |
| Density | 386 per sq mi |
| Median household income | $101,966 |
| Median home value | $465,133 |
| Home ownership | 70% |
Waste facilities and haulers nearby
Historical data: truck crashes in Middlesex 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 | 107 | — | 5.5 |
| 2000s | 284 | +165% | 4.7 |
| 2010s | 398 | +40% | 4.5 |
| 2020s | 406 | +2% | 7.0 |
In the 1990s about 107 truck crashes a year were reported; in the 2020s, about 406. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 4.2 a year in 2016–19 and 7.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 01432
How many truck accidents are there in ZIP 01432?
4,505 truck crashes have been reported in Middlesex County since 2015, with 73 deaths and 1,863 injuries.
Where do fatal truck crashes happen most in ZIP 01432?
I-495 had 4 fatal crashes involving a large truck within 10 miles of ZIP 01432 since 2015, more than any other road.
Which month has the most truck crashes in ZIP 01432?
The worst month is January: 9.5% of truck crashes in Middlesex County happen then.
How many garbage truck crashes are there in ZIP 01432?
Since 2015, Middlesex County has reported 255 garbage-truck crashes, or 5.7% of its truck crashes.
How do truck crashes in ZIP 01432 compare with Massachusetts?
Per 100,000 residents, Middlesex County has 23.2 truck crashes a year; Massachusetts has 22.9.
How do I plan a garbage truck route in ZIP 01432?
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.