Seymour, CT truck route planning & crash data
Plan safer truck routes in Seymour: commercial truck and garbage truck crashes in Seymour 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 sits below Connecticut on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It runs above Connecticut on morning rush (6–10 am).
What stands out in Seymour: SR-8 deadliest road: 5 fatal truck crashes within 10 miles of Seymour since 2015.
Overview
Since 2015, 1,924 crashes involving commercial trucks have been reported in Naugatuck Valley Planning Region. They injured 679 people and killed 37.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
Seymour had 75 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Naugatuck Valley Planning Region numbers.
When crashes happen
The worst month is October with 10.5% of truck crashes; the quietest is April at 7.1%.
Winter months (Nov–Mar) carry 41.6% of truck crashes, vs 41.3% for Connecticut.
By time of day, 7–8 am stands out with 8.0% of truck crashes.
Road surface: 5.5% of truck crashes were on snow, slush or ice (Connecticut: 6.2%).
Where crashes happen
SR-8 leads within 10 miles of Seymour with 5 fatal crashes involving a large truck since 2015. Next come I-84 (3), SR-10 (2) and SR-67 (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.
They recorded 4.3 deaths per 100 crashes, against 2.0 for all trucks.
Route planning tips for Seymour fleets
- Build extra time into October routes: it has the most truck crashes here.
- Look at alternatives to SR-8 at busy times: it leads this area in fatal truck crashes.
- Garbage-truck crashes here peak in March; review collection routes for that month.
- Morning starts matter: 26.9% of truck crashes fall between 6 and 10 am, higher than Connecticut.
- 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 Naugatuck Valley Planning Region
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-8 | 5 |
| I-84 | 3 |
| SR-10 | 2 |
| SR-67 | 2 |
| I-91 | 1 |
| I-95 | 1 |
| Mu-Church St | 1 |
| Pole Hill Rd | 1 |
| SR-152 | 1 |
| SR-188 | 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 |
Seymour at a glance
| Population | 17,139 |
| Land area | 14.5 sq mi |
| Density | 1,181 per sq mi |
| Median household income (ZIP 06483) | $107,708 |
| Median home value (ZIP 06483) | $370,851 |
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 |
Reported truck crashes averaged 78 a year in the 1990s and 172 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 3.2 a year in 2016–19, 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Seymour
How many truck accidents are there in Seymour?
Since 2015, 1,924 crashes involving commercial trucks were reported in Naugatuck Valley Planning Region (679 injured, 37 killed).
Which road has the most fatal truck crashes in Seymour?
Since 2015, SR-8 has had the most fatal large-truck crashes within 10 miles of Seymour: 5.
What is the worst month for truck crashes in Seymour?
The worst month is October: 10.5% of truck crashes in Naugatuck Valley Planning Region happen then.
How many garbage truck accidents happen in Seymour?
Garbage trucks were involved in 46 reported crashes in Naugatuck Valley Planning Region since 2015 (2.4% of truck crashes).
How does Seymour compare with Connecticut for truck crashes?
The yearly rate is 35.5 truck crashes per 100,000 residents in Naugatuck Valley Planning Region, vs 40.2 for Connecticut.
What is the best way to plan truck routes in Seymour?
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.