Dunkerton, IA truck route planning & crash data
Plan safer truck routes in Dunkerton: commercial truck and garbage truck crashes in Dunkerton and Black Hawk County, dangerous roads, seasonality and route safety data for fleets. Patterns use Black Hawk County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4.0 deaths per 100 garbage-truck crashes vs 2.9 for all trucks.
Deadliest roads
How Black Hawk County compares with Iowa
Black Hawk County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Black Hawk County stands out
Full comparison
| Measure (2015–2025) | Black Hawk County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 48.0 | 68.1 | 49.7 | 30% below the state |
| Deaths per 100 crashes | 2.9 | 3.5 | 3.4 | 17% below the state |
| Injuries per crash | 0.44 | 0.41 | 0.49 | 1.1× the state |
| Garbage-truck share | 3.6% | 2.2% | 2.3% | 1.6× the state |
| On snow, slush or ice | 17.6% | 18.7% | 6.2% | same |
| Morning rush (6–10 am) | 26.0% | 24.0% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 15.0% | 15.1% | 13.8% | same |
| Winter months (Nov–Mar) | 46.8% | 45.4% | 41.9% | same |
| After dark | 20.3% | 23.1% | 24.8% | 12% below the state |
Compared with Iowa, Black Hawk County is lower on crashes per 100k residents / yr, deaths per 100 crashes and after dark. It stands out for higher injuries per crash, garbage-truck share and morning rush (6–10 am).
Black Hawk County at a glance: 1 in 28 crashes involve a garbage truck (26 since 2015), vs 2.2% across Iowa.
Overview
Since 2015, 739 crashes involving commercial trucks have been reported in Black Hawk County. They injured 322 people and killed 22.
That averages about one truck crash every 6 days in fully reported years.
Dunkerton had 7 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Black Hawk County numbers.
20% of truck crash reports in Black Hawk County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
Truck crashes peak in December (10.4% of the year) and are lowest in June (6.2%).
Winter months (Nov–Mar) carry 46.8% of truck crashes, vs 45.4% for Iowa.
By time of day, 12–1 pm stands out with 9.5% of truck crashes.
Snow, slush or ice was on the road in 17.6% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Dunkerton since 2015: CR-C57 120Th St (1), CR-C66 E Dunkerton Rd (1) and I-35 (1). No single road stands out.
Garbage & waste trucks
Garbage and refuse trucks were involved in 26 crashes, 3.5% of the total, against 2.2% across Iowa.
The most garbage-truck crashes happen in November (19%).
They recorded 4.0 deaths per 100 crashes, against 2.9 for all trucks.
Route planning tips for Dunkerton fleets
- Build extra time into December routes: it has the most truck crashes here.
- Waste haulers: November is the peak month for garbage-truck crashes in Black Hawk County.
- Morning starts matter: 26.0% of truck crashes fall between 6 and 10 am, higher than Iowa.
- 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 Black Hawk County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-C57 120Th St | 1 |
| CR-C66 E Dunkerton Rd | 1 |
| I-35 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Black Hawk County) |
|---|---|
| I-380 | 51 |
| Interstate 380/I 380 | 26 |
| US-218 | 22 |
| Us 218/Washington St | 13 |
| US-20 | 12 |
| Us 63/Hudson Rd | 10 |
| US-63 | 6 |
| Dubuque Rd | 5 |
Dunkerton at a glance
| Population | 840 |
| Land area | 1.2 sq mi |
| Density | 702 per sq mi |
| Median household income (ZIP 50626) | $84,306 |
| Median home value (ZIP 50626) | $207,613 |
Waste facilities and haulers nearby
Historical data: truck crashes in Black Hawk 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 | 15 | — | 2.1 |
| 2000s | 51 | +242% | 1.7 |
| 2010s | 67 | +31% | 1.5 |
| 2020s | 64 | -6% | 1.2 |
Reported truck crashes averaged 15 a year in the 1990s and 64 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 2.0 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby places
Questions fleets ask about Dunkerton
How many truck accidents are there in Dunkerton?
Since 2015, 739 crashes involving commercial trucks were reported in Black Hawk County (322 injured, 22 killed).
What is the worst month for truck crashes in Dunkerton?
December has the most truck crashes in Black Hawk County, 10.4% of the yearly total.
How many garbage truck accidents happen in Dunkerton?
Since 2015, Black Hawk County has reported 26 garbage-truck crashes, or 3.5% of its truck crashes.
How does Dunkerton compare with Iowa for truck crashes?
The yearly rate is 48.0 truck crashes per 100,000 residents in Black Hawk County, vs 68.1 for Iowa.
What is the best way to plan truck routes in Dunkerton?
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.