Winthrop, IA truck route planning & crash data
Plan safer truck routes in Winthrop: commercial truck and garbage truck crashes in Winthrop and Buchanan County, dangerous roads, seasonality and route safety data for fleets. Patterns use Buchanan County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2 of 187 truck crashes since 2015.
Deadliest roads
How Buchanan County compares with Iowa
Buchanan County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Buchanan County stands out
Full comparison
| Measure (2015–2025) | Buchanan County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 76.3 | 68.1 | 49.7 | 1.1× the state |
| Deaths per 100 crashes | 3.4 | 3.5 | 3.4 | same |
| Injuries per crash | 0.43 | 0.41 | 0.49 | same |
| Garbage-truck share | 1.1% | 2.2% | 2.3% | 47% below the state |
| On snow, slush or ice | 25.3% | 18.7% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 20.7% | 24.0% | 23.7% | 14% below the state |
| In rain, sleet or snow | 14.9% | 15.1% | 13.8% | same |
| Winter months (Nov–Mar) | 43.1% | 45.4% | 41.9% | same |
| After dark | 22.4% | 23.1% | 24.8% | same |
Buchanan County has lower values than Iowa for garbage-truck share and morning rush (6–10 am). It runs above Iowa on crashes per 100k residents / yr and on snow, slush or ice.
The headline for Winthrop: US-20 most fatal truck crashes within 10 miles of Winthrop: 2 since 2015.
Overview
Since 2015, 187 crashes involving commercial trucks have been reported in Buchanan County. They injured 82 people and killed 6.
That averages about one truck crash every 23 days in fully reported years.
Winthrop had 1 reported truck crash since 2015, too few for reliable patterns, so the charts and findings on this page use Buchanan County numbers.
72% of truck crash reports in Buchanan 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 (11.2% of the year) and are lowest in March (4.3%).
The five winter months (November to March) hold 43.1% of truck crashes, against 45.4% across Iowa.
More truck crashes happen at 5–6 pm than at any other hour (10.7%).
25.3% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
US-20 leads within 10 miles of Winthrop with 2 fatal crashes involving a large truck since 2015. Next come CR-MASON Ave (1), CR-TROY Mills Blvd (1) and CR-W045/BUFFALO Creek Blvd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.1% of the total, against 2.2% across Iowa.
Route planning tips for Winthrop fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Buchanan County.
- Check whether your routes use US-20, the road with the most fatal truck crashes in this area.
- Icy and snowy roads show up in 25.3% of truck crashes here, more than Iowa; schedule winter checks early.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Buchanan County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-20 | 2 |
| CR-MASON Ave | 1 |
| CR-TROY Mills Blvd | 1 |
| CR-W045/BUFFALO Creek Blvd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Buchanan County) |
|---|---|
| State 150/Jamestown Ave Measur | 6 |
| State 187/Washburn Ave Measuri | 5 |
| Interstate 380/I 380 Measuring | 4 |
| US-20 | 3 |
| Ramp Ia 150 N To Us 20 E Measu | 3 |
| Benson-Shady Grove Ave Measuri | 2 |
| D047/290Th St And State 150/Ja | 2 |
| I 380 S Measuring 10827 Feet | 2 |
Winthrop at a glance
| Population | 814 |
| Land area | 0.8 sq mi |
| Density | 1,029 per sq mi |
| Median household income (ZIP 50682) | $89,375 |
| Median home value (ZIP 50682) | $182,299 |
Waste facilities and haulers nearby
Historical data: truck crashes in Buchanan 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 | — | 0.2 |
| 2000s | 10 | +308% | 0.8 |
| 2010s | 13 | +28% | 0.7 |
| 2020s | 17 | +35% | 0.2 |
Reported truck crashes averaged 2 a year in the 1990s and 17 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 1.2 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Winthrop
How many truck crashes happen in Winthrop?
187 truck crashes have been reported in Buchanan County since 2015, with 6 deaths and 82 injuries.
Which road has the most fatal truck crashes in Winthrop?
US-20 had 2 fatal crashes involving a large truck within 10 miles of Winthrop since 2015, more than any other road.
What is the worst month for truck crashes in Winthrop?
The worst month is January: 11.2% of truck crashes in Buchanan County happen then.
Are garbage truck crashes common in Winthrop?
Garbage trucks were involved in 2 reported crashes in Buchanan County since 2015 (1.1% of truck crashes).
How do truck crashes in Winthrop compare with Iowa?
The yearly rate is 76.3 truck crashes per 100,000 residents in Buchanan County, vs 68.1 for Iowa.
How do I plan a garbage truck route in Winthrop?
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.