ZIP 50839 (Carbon, IA) truck route planning & crash data
Plan safer truck routes around ZIP 50839: commercial truck and garbage truck crashes here and in Adams County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 31 truck crashes since 2015.
Deadliest roads
How Adams County compares with Iowa
Adams County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Adams County stands out
Full comparison
| Measure (2015–2025) | Adams County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 75.6 | 68.1 | 49.7 | 1.1× the state |
| Deaths per 100 crashes | 10.0 | 3.5 | 3.4 | 2.9× the state |
| Injuries per crash | 0.50 | 0.41 | 0.49 | 1.2× the state |
| Garbage-truck share | 3.3% | 2.2% | 2.3% | 1.5× the state |
| On snow, slush or ice | 10.0% | 18.7% | 6.2% | 46% below the state |
| Morning rush (6–10 am) | 20.0% | 24.0% | 23.7% | 17% below the state |
| In rain, sleet or snow | 10.0% | 15.1% | 13.8% | 34% below the state |
| Winter months (Nov–Mar) | 46.7% | 45.4% | 41.9% | same |
| After dark | 13.3% | 23.1% | 24.8% | 42% below the state |
Adams County has lower values than Iowa for on snow, slush or ice, morning rush (6–10 am) and in rain, sleet or snow. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
What stands out in Adams County: August worst month: 22.6% of truck crashes, vs 8.3% in an average month.
Overview
Adams County has recorded 31 truck crashes since 2015, with 17 people injured and 3 killed.
In complete reporting years that works out to about one truck crash every 134 days.
When crashes happen
The worst month is August with 22.6% of truck crashes; the quietest is February at 0.0%.
Winter months (Nov–Mar) carry 46.7% of truck crashes, vs 45.4% for Iowa.
More truck crashes happen at 12–1 pm than at any other hour (16.1%).
Road surface: 10.0% of truck crashes were on snow, slush or ice (Iowa: 18.7%).
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 50839 since 2015 were spread across roads: US-34 (2).
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 3.2% of the total, against 2.2% across Iowa.
Route planning tips for ZIP 50839 fleets
- Review driver schedules for August, the month with the most truck crashes.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Adams County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-34 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Adams County) |
|---|---|
| US-34 | 7 |
| Orange Ave | 3 |
| Ginko Ave And Us 34 | 3 |
| Ia 148 | 2 |
| N026/Birch Ave And Us 34 | 2 |
| Quince Ave | 2 |
| Us 34 And Ginko Ave | 2 |
| 10Th St And Ia 148 | 1 |
ZIP 50839 at a glance
| Population | 46 |
| Density | 35 per sq mi |
| Median household income | $48,750 |
| Home ownership | 82% |
Waste facilities and haulers nearby
Historical data: truck crashes in Adams 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 | 1 | — | 0.4 |
| 2000s | 2 | +84% | 0.3 |
| 2010s | 3 | +24% | 0.5 |
| 2020s | 3 | +9% | 0.4 |
Reported truck crashes averaged 1 a year in the 1990s and 3 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 0.2 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 50839
How many truck accidents are there in ZIP 50839?
Since 2015, 31 crashes involving commercial trucks were reported in Adams County (17 injured, 3 killed).
When do most truck crashes happen in ZIP 50839?
Truck crashes in Adams County peak in August, with 22.6% of the year's crashes.
How many garbage truck crashes are there in ZIP 50839?
1 crash involving garbage or refuse trucks have been reported in Adams County since 2015, 3.2% of all truck crashes.
How do truck crashes in ZIP 50839 compare with Iowa?
The yearly rate is 75.6 truck crashes per 100,000 residents in Adams County, vs 68.1 for Iowa.
What is the best way to plan truck routes in ZIP 50839?
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.