Manson, IA truck route planning & crash data
Plan safer truck routes in Manson: commercial truck and garbage truck crashes in Manson 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 |
Calhoun County sits below Iowa on garbage-truck share and after dark. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
Calhoun County at a glance: 0 crashes involve a garbage truck (0 since 2015), vs 2.2% across Iowa.
Overview
Since 2015, 110 crashes involving commercial trucks have been reported in Calhoun County. They injured 50 people and killed 8.
In complete reporting years that works out to about one truck crash every 38 days.
Manson had 2 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%).
Snow, slush or ice was on the road in 28.6% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
The deadliest road for trucks within 10 miles of Manson is SR-4, with 4 fatal large-truck crashes since 2015. 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 Manson fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Calhoun County.
- Look at alternatives to SR-4 at busy times: it leads this area in fatal truck crashes.
- 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
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) |
|---|---|
| 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 |
Manson at a glance
| Population | 1,646 |
| Land area | 3.2 sq mi |
| Density | 508 per sq mi |
| Median household income (ZIP 50563) | $71,094 |
| Median home value (ZIP 50563) | $159,806 |
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 |
Reported truck crashes averaged 2 a year in the 1990s and 10 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. 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 Manson
How common are truck crashes in Manson?
Calhoun County has had 110 reported truck crashes since 2015, injuring 50 people and killing 8.
Where do fatal truck crashes happen most in Manson?
Since 2015, SR-4 has had the most fatal large-truck crashes within 10 miles of Manson: 4.
When do most truck crashes happen in Manson?
January has the most truck crashes in Calhoun County, 12.7% of the yearly total.
Are garbage truck crashes common in Manson?
Garbage trucks were involved in 0 reported crashes in Calhoun County since 2015 (0.0% of truck crashes).
How do truck crashes in Manson compare with Iowa?
Calhoun County records 98.3 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
How do I plan a garbage truck route in Manson?
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.