St. Olaf, IA truck route planning & crash data
Plan safer truck routes in St. Olaf: commercial truck and garbage truck crashes in St. Olaf and Clayton County, dangerous roads, seasonality and route safety data for fleets. Patterns use Clayton County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2 of 120 truck crashes since 2015.
Deadliest roads
How Clayton County compares with Iowa
Clayton County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Clayton County stands out
Full comparison
| Measure (2015–2025) | Clayton County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 61.7 | 68.1 | 49.7 | 9% below the state |
| Deaths per 100 crashes | 5.2 | 3.5 | 3.4 | 1.5× the state |
| Injuries per crash | 0.44 | 0.41 | 0.49 | 1.1× the state |
| Garbage-truck share | 1.7% | 2.2% | 2.3% | 20% below the state |
| On snow, slush or ice | 14.8% | 18.7% | 6.2% | 21% below the state |
| Morning rush (6–10 am) | 26.1% | 24.0% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 12.2% | 15.1% | 13.8% | 20% below the state |
| Winter months (Nov–Mar) | 40.0% | 45.4% | 41.9% | 12% below the state |
| After dark | 13.9% | 23.1% | 24.8% | 40% below the state |
Clayton County sits below Iowa on crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. Where it is higher: deaths per 100 crashes, injuries per crash and morning rush (6–10 am).
The headline for Clayton County: July the month with the most truck crashes: 13.3% of the year's total.
Overview
Police reported 120 crashes involving commercial trucks in Clayton County since 2015: 55 people were injured and 6 were killed.
That averages about one truck crash every 35 days in fully reported years.
With 0 truck crashes reported in St. Olaf since 2015, this page uses Clayton County numbers for its patterns and comparisons.
59% of truck crash reports in Clayton County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is July with 13.3% of truck crashes; the quietest is March at 4.2%.
November through March accounts for 40.0% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 3–4 pm, with 11.7% of truck crashes.
Snow, slush or ice was on the road in 14.8% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of St. Olaf happened on US-52 (2); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.7% of the total, against 2.2% across Iowa.
Route planning tips for St. Olaf fleets
- Build extra time into July routes: it has the most truck crashes here.
- Morning starts matter: 26.1% of truck crashes fall between 6 and 10 am, higher than Iowa.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Clayton County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-52 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Clayton County) |
|---|---|
| US-52 | 12 |
| State 13/Iowa 13 | 9 |
| US-18 | 9 |
| Ia 13 | 8 |
| 100Th St | 3 |
| Dogwood Ave | 2 |
| East Mission Rd | 2 |
| Echo Ave | 2 |
St. Olaf at a glance
| Population | 102 |
| Land area | 0.2 sq mi |
| Density | 423 per sq mi |
| Median household income (ZIP 52072) | $62,250 |
| Median home value (ZIP 52072) | $158,300 |
Waste facilities and haulers nearby
Historical data: truck crashes in Clayton 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 | 5 | — | 1.4 |
| 2000s | 10 | +104% | 0.6 |
| 2010s | 10 | +2% | 0.7 |
| 2020s | 11 | +6% | 0.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 5 to 11. Some of the change may reflect how crashes were reported. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.6 a year in 2020–24.
Nearby places
Questions fleets ask about St. Olaf
How many truck accidents are there in St. Olaf?
120 truck crashes have been reported in Clayton County since 2015, with 6 deaths and 55 injuries.
Which month has the most truck crashes in St. Olaf?
July has the most truck crashes in Clayton County, 13.3% of the yearly total.
Are garbage truck crashes common in St. Olaf?
2 crashes involving garbage or refuse trucks have been reported in Clayton County since 2015, 1.7% of all truck crashes.
How do truck crashes in St. Olaf compare with Iowa?
The yearly rate is 61.7 truck crashes per 100,000 residents in Clayton County, vs 68.1 for Iowa.
How can I plan a safer truck route in St. Olaf?
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.