Knierim, IA truck route planning & crash data
Plan safer truck routes in Knierim: commercial truck and garbage truck crashes in Knierim 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. It runs above Iowa on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
What stands out in Calhoun County: 0 garbage-truck share of crashes is 0.0%, against 2.2% for Iowa.
Overview
Police reported 110 crashes involving commercial trucks in Calhoun County since 2015: 50 people were injured and 8 were killed.
That averages about one truck crash every 38 days in fully reported years.
Only 2 truck crashes were reported in Knierim since 2015; patterns below come from Calhoun County as a whole.
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
Truck crashes peak in January (12.7% of the year) and are lowest in March (4.5%).
November through March accounts for 49.5% of truck crashes here, compared with 45.4% in Iowa.
By time of day, 10–11 am stands out with 11.8% of truck crashes.
28.6% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
Fatal large-truck crashes within 10 miles of Knierim since 2015 were spread across roads: CR-D20/230TH St (1), CR-D36 (1) and US-20 (1).
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Calhoun County.
Route planning tips for Knierim fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Calhoun County.
- 28.6% of truck crashes were on snow, slush or ice, above Iowa; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Calhoun County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-D20/230TH St | 1 |
| CR-D36 | 1 |
| 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 |
Knierim at a glance
| Population | 53 |
| Land area | 1.0 sq mi |
| Density | 53 per sq mi |
| Median household income (ZIP 50552) | $89,000 |
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 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 10. Reporting coverage also changed between these periods. NHTSA counts 0.5 fatal large-truck crashes a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Knierim
How many truck accidents are there in Knierim?
Since 2015, 110 crashes involving commercial trucks were reported in Calhoun County (50 injured, 8 killed).
When do most truck crashes happen in Knierim?
January has the most truck crashes in Calhoun County, 12.7% of the yearly total.
How many garbage truck crashes are there in Knierim?
Since 2015, Calhoun County has reported 0 garbage-truck crashes, or 0.0% of its truck crashes.
What is the truck crash rate in Knierim compared with Iowa?
Per 100,000 residents, Calhoun County has 98.3 truck crashes a year; Iowa has 68.1.
What is the best way to plan truck routes in Knierim?
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.