Derby, CT truck route planning & crash data
Plan safer truck routes in Derby: commercial truck and garbage truck crashes in Derby and Naugatuck Valley Planning Region, dangerous roads, seasonality and route safety data for fleets. Patterns use Naugatuck Valley Planning Region numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4.3 deaths per 100 garbage-truck crashes vs 2.0 for all trucks.
Deadliest roads
How Naugatuck Valley Planning Region compares with Connecticut
Naugatuck Valley Planning Region against Connecticut and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Naugatuck Valley Planning Region stands out
Full comparison
| Measure (2015–2025) | Naugatuck Valley Planning Region | Connecticut | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 35.5 | 40.2 | 49.7 | 12% below the state |
| Deaths per 100 crashes | 2.0 | 2.2 | 3.4 | 9% below the state |
| Injuries per crash | 0.35 | 0.39 | 0.49 | 10% below the state |
| Garbage-truck share | 2.5% | 3.3% | 2.3% | 23% below the state |
| On snow, slush or ice | 5.5% | 6.2% | 6.2% | 11% below the state |
| Morning rush (6–10 am) | 26.9% | 24.4% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 12.9% | 14.1% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 41.6% | 41.3% | 41.9% | same |
| After dark | 24.2% | 28.0% | 24.8% | 14% below the state |
Naugatuck Valley Planning Region has lower values than Connecticut for crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. Where it is higher: morning rush (6–10 am).
What stands out in Derby: I-95 deadliest road: 11 fatal truck crashes within 10 miles of Derby since 2015.
Overview
Police reported 1,924 crashes involving commercial trucks in Naugatuck Valley Planning Region since 2015: 679 people were injured and 37 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
Only 51 truck crashes were reported in Derby since 2015; patterns below come from Naugatuck Valley Planning Region as a whole.
When crashes happen
Truck crashes peak in October (10.5% of the year) and are lowest in April (7.1%).
The five winter months (November to March) hold 41.6% of truck crashes, against 41.3% across Connecticut.
The busiest hour is 7–8 am, with 8.0% of truck crashes.
5.5% of truck crashes here happened on snow, slush or ice, against 6.2% across Connecticut.
Where crashes happen
I-95 leads within 10 miles of Derby with 11 fatal crashes involving a large truck since 2015. Next come SR-8 (7), I-91 (4) and SR-10 (2).
Garbage & waste trucks
Garbage trucks account for 46 of the truck crashes here, or 2.4%, compared with 3.3% in Connecticut.
Their busiest month is March, with 15% of garbage-truck crashes.
Deaths per 100 garbage-truck crashes: 4.3, vs 2.0 for all truck crashes.
Route planning tips for Derby fleets
- Review driver schedules for October, the month with the most truck crashes.
- Look at alternatives to I-95 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: March is the peak month for garbage-truck crashes in Naugatuck Valley Planning Region.
- The morning rush (6–10 am) holds 26.9% of truck crashes here, more than Connecticut; adjust start times where you can.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Naugatuck Valley Planning Region
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-95 | 11 |
| SR-8 | 7 |
| I-91 | 4 |
| SR-10 | 2 |
| Chapel St | 1 |
| I 95 Sb Milford Rest Area | 1 |
| Lori Dr | 1 |
| Mu-Church St | 1 |
| Pole Hill Rd | 1 |
| SR-152 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Naugatuck Valley Planning Region) |
|---|---|
| I-84 | 83 |
| Bank St | 29 |
| SR-8 | 25 |
| Main St | 16 |
| Highland Ave | 10 |
| North Main St | 9 |
| I 84 East | 7 |
| Exit 25 I 84 | 7 |
Derby at a glance
| Population | 12,915 |
| Land area | 5.1 sq mi |
| Density | 2,554 per sq mi |
| Median household income (ZIP 06418) | $78,542 |
| Median home value (ZIP 06418) | $257,952 |
Historical data: truck crashes in Naugatuck Valley Planning Region 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 | 78 | — | 0.0 |
| 2000s | 98 | +27% | 1.8 |
| 2010s | 116 | +18% | 2.4 |
| 2020s | 172 | +48% | 1.6 |
In the 1990s about 78 truck crashes a year were reported; in the 2020s, about 172. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 3.2 a year in 2016–19 and 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Derby
How many truck crashes happen in Derby?
Naugatuck Valley Planning Region has had 1,924 reported truck crashes since 2015, injuring 679 people and killing 37.
Which road has the most fatal truck crashes in Derby?
NHTSA data shows I-95 with 11 fatal large-truck crashes within 10 miles of Derby since 2015, the highest of any road.
What is the worst month for truck crashes in Derby?
October has the most truck crashes in Naugatuck Valley Planning Region, 10.5% of the yearly total.
How many garbage truck accidents happen in Derby?
Garbage trucks were involved in 46 reported crashes in Naugatuck Valley Planning Region since 2015 (2.4% of truck crashes).
How do truck crashes in Derby compare with Connecticut?
The yearly rate is 35.5 truck crashes per 100,000 residents in Naugatuck Valley Planning Region, vs 40.2 for Connecticut.
How do I plan a garbage truck route in Derby?
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.