Norwalk, IA truck route planning & crash data
Plan safer truck routes in Norwalk: commercial truck and garbage truck crashes in Norwalk and Warren County, dangerous roads, seasonality and route safety data for fleets. Patterns use Warren County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
7 of 291 truck crashes since 2015.
Deadliest roads
How Warren County compares with Iowa
Warren County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Warren County stands out
Full comparison
| Measure (2015–2025) | Warren County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 43.7 | 68.1 | 49.7 | 36% below the state |
| Deaths per 100 crashes | 3.3 | 3.5 | 3.4 | same |
| Injuries per crash | 0.29 | 0.41 | 0.49 | 29% below the state |
| Garbage-truck share | 2.6% | 2.2% | 2.3% | 1.2× the state |
| On snow, slush or ice | 15.1% | 18.7% | 6.2% | 19% below the state |
| Morning rush (6–10 am) | 17.0% | 24.0% | 23.7% | 29% below the state |
| In rain, sleet or snow | 14.8% | 15.1% | 13.8% | same |
| Winter months (Nov–Mar) | 39.9% | 45.4% | 41.9% | 12% below the state |
| After dark | 26.9% | 23.1% | 24.8% | 1.2× the state |
Warren County sits below Iowa on crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. It stands out for higher garbage-truck share and after dark.
What stands out in Norwalk: I-35 4 fatal truck crashes since 2015, more than any other road within 10 miles of Norwalk.
Overview
Warren County has recorded 291 truck crashes since 2015, with 82 people injured and 9 killed.
Across the years with complete reporting, that is roughly one truck crash every 15 days.
With 9 truck crashes reported in Norwalk since 2015, this page uses Warren County numbers for its patterns and comparisons.
62% of truck crash reports in Warren County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
Truck crashes peak in August (11.3% of the year) and are lowest in December (5.2%).
Winter months (Nov–Mar) carry 39.9% of truck crashes, vs 45.4% for Iowa.
By time of day, 3–4 pm stands out with 10.3% of truck crashes.
Snow, slush or ice was on the road in 15.1% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
I-35 leads within 10 miles of Norwalk with 4 fatal crashes involving a large truck since 2015. It is followed by SR-5 (2), US-65 (2) and E Army Post Rd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 7 crashes, 2.4% of the total, against 2.2% across Iowa.
Route planning tips for Norwalk fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in Warren County.
- Look at alternatives to I-35 at busy times: it leads this area in fatal truck crashes.
- 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 Warren County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-35 | 4 |
| SR-5 | 2 |
| US-65 | 2 |
| E Army Post Rd | 1 |
| Grand Ave | 1 |
| I-235 | 1 |
| Martin Luther King Pkwy | 1 |
| SR-28 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Warren County) |
|---|---|
| I-35 | 9 |
| Ia 5 | 8 |
| US-65 | 8 |
| Blk. N. Jefferson Way | 7 |
| Blk N Jefferson Way | 6 |
| Blk. W. Second Ave. | 5 |
| State 92/Iowa 92 | 4 |
| State 5/Iowa 5 And G016/Scotch | 3 |
Norwalk at a glance
| Population | 15,396 |
| Land area | 11.6 sq mi |
| Density | 1,322 per sq mi |
| Median household income (ZIP 50211) | $103,712 |
| Median home value (ZIP 50211) | $315,933 |
Waste facilities and haulers nearby
Historical data: truck crashes in Warren 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 | 6 | — | 0.5 |
| 2000s | 19 | +231% | 0.7 |
| 2010s | 23 | +16% | 1.3 |
| 2020s | 26 | +16% | 0.4 |
Reported truck crashes averaged 6 a year in the 1990s and 26 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 1.5 fatal large-truck crashes a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Norwalk
How common are truck crashes in Norwalk?
Since 2015, 291 crashes involving commercial trucks were reported in Warren County (82 injured, 9 killed).
Which road has the most fatal truck crashes in Norwalk?
I-35 had 4 fatal crashes involving a large truck within 10 miles of Norwalk since 2015, more than any other road.
What is the worst month for truck crashes in Norwalk?
The worst month is August: 11.3% of truck crashes in Warren County happen then.
How many garbage truck crashes are there in Norwalk?
Garbage trucks were involved in 7 reported crashes in Warren County since 2015 (2.4% of truck crashes).
How do truck crashes in Norwalk compare with Iowa?
Warren County records 43.7 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
What is the best way to plan truck routes in Norwalk?
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.