Dyersville, IA truck route planning & crash data
Plan safer truck routes in Dyersville: commercial truck and garbage truck crashes in Dyersville and Delaware County, dangerous roads, seasonality and route safety data for fleets. Patterns use Delaware County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3 of 138 truck crashes since 2015.
Deadliest roads
How Delaware County compares with Iowa
Delaware County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Delaware County stands out
Full comparison
| Measure (2015–2025) | Delaware County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 65.0 | 68.1 | 49.7 | same |
| Deaths per 100 crashes | 4.8 | 3.5 | 3.4 | 1.4× the state |
| Injuries per crash | 0.31 | 0.41 | 0.49 | 24% below the state |
| Garbage-truck share | 1.6% | 2.2% | 2.3% | 27% below the state |
| On snow, slush or ice | 13.5% | 18.7% | 6.2% | 28% below the state |
| Morning rush (6–10 am) | 21.4% | 24.0% | 23.7% | 11% below the state |
| In rain, sleet or snow | 7.9% | 15.1% | 13.8% | 48% below the state |
| Winter months (Nov–Mar) | 42.9% | 45.4% | 41.9% | same |
| After dark | 18.2% | 23.1% | 24.8% | 21% below the state |
Delaware County sits below Iowa on injuries per crash, garbage-truck share and on snow, slush or ice. Where it is higher: deaths per 100 crashes.
The headline for Delaware County: October the month with the most truck crashes: 14.5% of the year's total.
Overview
Since 2015, 138 crashes involving commercial trucks have been reported in Delaware County. They injured 45 people and killed 6.
That averages about one truck crash every 32 days in fully reported years.
With 4 truck crashes reported in Dyersville since 2015, this page uses Delaware County numbers for its patterns and comparisons.
64% of truck crash reports in Delaware County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
October has the most truck crashes, 14.5% of the yearly total, while February has the fewest (5.8%).
November through March accounts for 42.9% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 9–10 am, with 13.0% of truck crashes.
Snow, slush or ice was on the road in 13.5% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Within this area, US-20 had the most fatal crashes involving a large truck since 2015 (3). It is followed by CR-D22/210TH St (1) and CR-X49/330TH Ave (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 3 crashes, 2.2% of the total, against 2.2% across Iowa.
Route planning tips for Dyersville fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Delaware County.
- Check whether your routes use US-20, the road with the most fatal truck crashes in this area.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Delaware County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-20 | 3 |
| CR-D22/210TH St | 1 |
| CR-X49/330TH Ave | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Delaware County) |
|---|---|
| US-20 | 16 |
| State 13/Iowa 13 | 6 |
| Ia 13 | 3 |
| 210Th St | 3 |
| 180Th Ave | 3 |
| 110Th Ave | 2 |
| 210Th St Measuring 2935 Feet | 2 |
| 260Th Ave And Us 20 West Of Ea | 2 |
Dyersville at a glance
| Population | 4,559 |
| Land area | 7.0 sq mi |
| Density | 655 per sq mi |
| Median household income (ZIP 52040) | $84,761 |
| Median home value (ZIP 52040) | $238,302 |
Waste facilities and haulers nearby
Historical data: truck crashes in Delaware 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 | 4 | — | 0.4 |
| 2000s | 7 | +66% | 0.4 |
| 2010s | 11 | +51% | 0.6 |
| 2020s | 11 | +4% | 0.4 |
Reported truck crashes averaged 4 a year in the 1990s and 11 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Dyersville
How common are truck crashes in Dyersville?
Delaware County has had 138 reported truck crashes since 2015, injuring 45 people and killing 6.
Where do fatal truck crashes happen most in Dyersville?
US-20 had 3 fatal crashes involving a large truck within 10 miles of Dyersville since 2015, more than any other road.
What is the worst month for truck crashes in Dyersville?
October has the most truck crashes in Delaware County, 14.5% of the yearly total.
How many garbage truck crashes are there in Dyersville?
Since 2015, Delaware County has reported 3 garbage-truck crashes, or 2.2% of its truck crashes.
How does Dyersville compare with Iowa for truck crashes?
Per 100,000 residents, Delaware County has 65.0 truck crashes a year; Iowa has 68.1.
How do I plan a garbage truck route in Dyersville?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.