DeWitt, IA truck route planning & crash data
Plan safer truck routes in DeWitt: commercial truck and garbage truck crashes in DeWitt and Clinton County, dangerous roads, seasonality and route safety data for fleets. Patterns use Clinton County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
8 of 287 truck crashes since 2015.
Deadliest roads
How Clinton County compares with Iowa
Clinton County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Clinton County stands out
Full comparison
| Measure (2015–2025) | Clinton County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 55.1 | 68.1 | 49.7 | 19% below the state |
| Deaths per 100 crashes | 2.9 | 3.5 | 3.4 | 17% below the state |
| Injuries per crash | 0.43 | 0.41 | 0.49 | same |
| Garbage-truck share | 2.9% | 2.2% | 2.3% | 1.3× the state |
| On snow, slush or ice | 9.7% | 18.7% | 6.2% | 48% below the state |
| Morning rush (6–10 am) | 27.6% | 24.0% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 9.7% | 15.1% | 13.8% | 36% below the state |
| Winter months (Nov–Mar) | 38.4% | 45.4% | 41.9% | 16% below the state |
| After dark | 12.2% | 23.1% | 24.8% | 47% below the state |
Compared with Iowa, Clinton County is lower on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher garbage-truck share and morning rush (6–10 am).
DeWitt at a glance: US-30 3 fatal truck crashes since 2015, more than any other road within 10 miles of DeWitt.
Overview
Since 2015, 287 crashes involving commercial trucks have been reported in Clinton County. They injured 119 people and killed 8.
In complete reporting years that works out to about one truck crash every 14 days.
With 0 truck crashes reported in DeWitt since 2015, this page uses Clinton County numbers for its patterns and comparisons.
36% of truck crash reports in Clinton County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is August with 11.8% of truck crashes; the quietest is February at 4.9%.
November through March accounts for 38.4% of truck crashes here, compared with 45.4% in Iowa.
More truck crashes happen at 3–4 pm than at any other hour (11.5%).
Snow, slush or ice was on the road in 9.7% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Within this area, US-30 had the most fatal crashes involving a large truck since 2015 (3). After it: US-61 (2) and CR-Y52 210Th Ave (1).
Garbage & waste trucks
Garbage trucks account for 8 of the truck crashes here, or 2.8%, compared with 2.2% in Iowa.
Route planning tips for DeWitt fleets
- Build extra time into August routes: it has the most truck crashes here.
- Look at alternatives to US-30 at busy times: it leads this area in fatal truck crashes.
- 27.6% of truck crashes happen between 6 and 10 am, above Iowa; consider earlier or later starts where possible.
- 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 Clinton County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-30 | 3 |
| US-61 | 2 |
| CR-Y52 210Th Ave | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Clinton County) |
|---|---|
| US-30 | 15 |
| Us 30/Lincoln Way | 7 |
| Us 30/Camanche Ave | 6 |
| Ramp Us 30 W To Us 61 | 5 |
| US-61 | 4 |
| Us 61 N And 250Th Ave | 4 |
| Us 67/S 4Th St And Us 30/S 4Th | 3 |
| Us 30/Ramp | 3 |
DeWitt at a glance
| Population | 5,620 |
| Land area | 6.2 sq mi |
| Density | 903 per sq mi |
| Median household income (ZIP 52742) | $97,946 |
| Median home value (ZIP 52742) | $261,035 |
Waste facilities and haulers nearby
Historical data: truck crashes in Clinton 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 | 28 | — | 1.0 |
| 2000s | 27 | -5% | 1.4 |
| 2010s | 25 | -5% | 0.8 |
| 2020s | 26 | +1% | 0.2 |
Reported truck crashes averaged 28 a year in the 1990s and 26 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.2 a year in 2016–19, 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about DeWitt
How common are truck crashes in DeWitt?
Clinton County has had 287 reported truck crashes since 2015, injuring 119 people and killing 8.
What is the most dangerous road for trucks in DeWitt?
US-30 had 3 fatal crashes involving a large truck within 10 miles of DeWitt since 2015, more than any other road.
What is the worst month for truck crashes in DeWitt?
August has the most truck crashes in Clinton County, 11.8% of the yearly total.
Are garbage truck crashes common in DeWitt?
Garbage trucks were involved in 8 reported crashes in Clinton County since 2015 (2.8% of truck crashes).
How does DeWitt compare with Iowa for truck crashes?
Per 100,000 residents, Clinton County has 55.1 truck crashes a year; Iowa has 68.1.
What is the best way to plan truck routes in DeWitt?
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.