Rockwell City, IA truck route planning & crash data
Plan safer truck routes in Rockwell City: commercial truck and garbage truck crashes in Rockwell City and Calhoun County, dangerous roads, seasonality and route safety data for fleets. Patterns use Calhoun County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 110 truck crashes since 2015.
Deadliest roads
How Calhoun County compares with Iowa
Calhoun County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Calhoun County stands out
Full comparison
| Measure (2015–2025) | Calhoun County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 98.3 | 68.1 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 7.6 | 3.5 | 3.4 | 2.2× the state |
| Injuries per crash | 0.42 | 0.41 | 0.49 | same |
| Garbage-truck share | 0.0% | 2.2% | 2.3% | 100% below the state |
| On snow, slush or ice | 28.6% | 18.7% | 6.2% | 1.5× the state |
| Morning rush (6–10 am) | 23.8% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 20.9% | 15.1% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 49.5% | 45.4% | 41.9% | 1.1× the state |
| After dark | 20.0% | 23.1% | 24.8% | 13% below the state |
Compared with Iowa, Calhoun County is lower on garbage-truck share and after dark. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
Calhoun County at a glance: 0 of truck crashes here involve garbage trucks: 0.0%, vs 2.2% in Iowa.
Overview
Police reported 110 crashes involving commercial trucks in Calhoun County since 2015: 50 people were injured and 8 were killed.
Across the years with complete reporting, that is roughly one truck crash every 38 days.
Rockwell City had 6 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Calhoun County numbers.
74% of truck crash reports in Calhoun County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
January has the most truck crashes, 12.7% of the yearly total, while March has the fewest (4.5%).
November through March accounts for 49.5% of truck crashes here, compared with 45.4% in Iowa.
More truck crashes happen at 10–11 am than at any other hour (11.8%).
Road surface: 28.6% of truck crashes were on snow, slush or ice (Iowa: 18.7%).
Where crashes happen
Within this area, SR-4 had the most fatal crashes involving a large truck since 2015 (4). After it: US-20 (1).
Garbage & waste trucks
No crashes involving garbage or refuse trucks have been reported in Calhoun County since 2015.
Route planning tips for Rockwell City fleets
- Review driver schedules for January, the month with the most truck crashes.
- Check whether your routes use SR-4, the road with the most fatal truck crashes in this area.
- With 28.6% of truck crashes on snow, slush or ice (above Iowa), plan winter equipment checks early.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Calhoun County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-4 | 4 |
| US-20 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Calhoun County) |
|---|---|
| US-20 | 14 |
| Us 20/Us20 | 10 |
| Ia 4 | 8 |
| Dakota Ave | 2 |
| Dakota Ave And Railway St | 2 |
| Ia 175 | 2 |
| N028/Dakota Ave And Us 20/Us20 | 2 |
| N065/Sigourney Ave And Us 20/U | 2 |
Rockwell City at a glance
| Population | 2,185 |
| Land area | 4.2 sq mi |
| Density | 519 per sq mi |
| Median household income (ZIP 50579) | $61,108 |
| Median home value (ZIP 50579) | $127,451 |
Waste facilities and haulers nearby
Historical data: truck crashes in Calhoun 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 | 2 | — | 0.5 |
| 2000s | 5 | +185% | 0.3 |
| 2010s | 9 | +72% | 0.5 |
| 2020s | 10 | +10% | 0.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 2 to 10. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.5 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Rockwell City
How common are truck crashes in Rockwell City?
110 truck crashes have been reported in Calhoun County since 2015, with 8 deaths and 50 injuries.
Where do fatal truck crashes happen most in Rockwell City?
NHTSA data shows SR-4 with 4 fatal large-truck crashes within 10 miles of Rockwell City since 2015, the highest of any road.
When do most truck crashes happen in Rockwell City?
Truck crashes in Calhoun County peak in January, with 12.7% of the year's crashes.
How many garbage truck accidents happen in Rockwell City?
0 crashes involving garbage or refuse trucks have been reported in Calhoun County since 2015, 0.0% of all truck crashes.
How do truck crashes in Rockwell City compare with Iowa?
Calhoun County records 98.3 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
What is the best way to plan truck routes in Rockwell City?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.