Twin Lakes, IA truck route planning & crash data
Plan safer truck routes in Twin Lakes: commercial truck and garbage truck crashes in Twin Lakes 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.
Calhoun County at a glance: 0 garbage-truck share of crashes is 0.0%, against 2.2% for Iowa.
Overview
Since 2015, 110 crashes involving commercial trucks have been reported in Calhoun County. They injured 50 people and killed 8.
Across the years with complete reporting, that is roughly one truck crash every 38 days.
With 0 truck crashes reported in Twin Lakes since 2015, this page uses Calhoun County numbers for its patterns and comparisons.
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
The worst month is January with 12.7% of truck crashes; the quietest is March at 4.5%.
November through March accounts for 49.5% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 10–11 am, 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
SR-4 leads within 10 miles of Twin Lakes with 4 fatal crashes involving a large truck since 2015. It is followed by US-20 (1).
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Calhoun County since 2015.
Route planning tips for Twin Lakes fleets
- Review driver schedules for January, the month with the most truck crashes.
- 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 |
Twin Lakes at a glance
| Land area | 1.3 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 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 10. Reporting coverage also changed between these periods. 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 Twin Lakes
How common are truck crashes in Twin Lakes?
Since 2015, 110 crashes involving commercial trucks were reported in Calhoun County (50 injured, 8 killed).
What is the most dangerous road for trucks in Twin Lakes?
SR-4 had 4 fatal crashes involving a large truck within 10 miles of Twin Lakes since 2015, more than any other road.
What is the worst month for truck crashes in Twin Lakes?
January has the most truck crashes in Calhoun County, 12.7% of the yearly total.
Are garbage truck crashes common in Twin Lakes?
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 Twin Lakes 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 Twin Lakes?
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.