ZIP 51576 (Underwood, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51576: commercial truck and garbage truck crashes here and in Pottawattamie 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
15 of 1,310 truck crashes since 2015.
Deadliest roads
How Pottawattamie County compares with Iowa
Pottawattamie County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Pottawattamie County stands out
Full comparison
| Measure (2015–2025) | Pottawattamie County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 118.3 | 68.1 | 49.7 | 1.7× the state |
| Deaths per 100 crashes | 2.1 | 3.5 | 3.4 | 40% below the state |
| Injuries per crash | 0.33 | 0.41 | 0.49 | 20% below the state |
| Garbage-truck share | 1.1% | 2.2% | 2.3% | 47% below the state |
| On snow, slush or ice | 17.5% | 18.7% | 6.2% | same |
| Morning rush (6–10 am) | 22.4% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 17.9% | 15.1% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 47.5% | 45.4% | 41.9% | same |
| After dark | 29.3% | 23.1% | 24.8% | 1.3× the state |
Compared with Iowa, Pottawattamie County is lower on deaths per 100 crashes, injuries per crash and garbage-truck share. It runs above Iowa on crashes per 100k residents / yr, in rain, sleet or snow and after dark.
What stands out in ZIP 51576: I-80 3 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 51576.
Overview
Police reported 1,310 crashes involving commercial trucks in Pottawattamie County since 2015: 420 people were injured and 31 were killed.
In complete reporting years that works out to about one truck crash every 3 days.
When crashes happen
Truck crashes peak in January (11.9% of the year) and are lowest in April (6.9%).
The five winter months (November to March) hold 47.5% of truck crashes, against 45.4% across Iowa.
The busiest hour is 10–11 am, with 6.6% of truck crashes.
Snow, slush or ice was on the road in 17.5% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 51576 is I-80, with 3 fatal large-truck crashes since 2015. After it: CR-L34 (1), CR-MYNSTER Springs Rd (1) and I-680 (1).
Garbage & waste trucks
Garbage trucks account for 15 of the truck crashes here, or 1.1%, compared with 2.2% in Iowa.
Route planning tips for ZIP 51576 fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Pottawattamie County.
- Look at alternatives to I-80 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
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 Pottawattamie County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-80 | 3 |
| CR-L34 | 1 |
| CR-MYNSTER Springs Rd | 1 |
| I-680 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Pottawattamie County) |
|---|---|
| I-80 | 62 |
| I-29 | 20 |
| Interstate 29/I 29 | 15 |
| Interstate 80/I 80 | 14 |
| US-6 | 11 |
| I-880 | 8 |
| Interstate 29/I29 Ramp | 8 |
| US-59 | 6 |
ZIP 51576 at a glance
| Population | 1,769 |
| Density | 15 per sq mi |
| Median household income | $110,476 |
| Median home value | $307,384 |
| Home ownership | 89% |
Waste facilities and haulers nearby
Historical data: truck crashes in Pottawattamie 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 | 70 | — | 2.9 |
| 2000s | 81 | +16% | 2.2 |
| 2010s | 96 | +18% | 1.7 |
| 2020s | 114 | +19% | 2.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 70 to 114. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 2.2 a year in 2016–19 and 2.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51576
How common are truck crashes in ZIP 51576?
Since 2015, 1,310 crashes involving commercial trucks were reported in Pottawattamie County (420 injured, 31 killed).
Where do fatal truck crashes happen most in ZIP 51576?
I-80 had 3 fatal crashes involving a large truck within 10 miles of ZIP 51576 since 2015, more than any other road.
What is the worst month for truck crashes in ZIP 51576?
January has the most truck crashes in Pottawattamie County, 11.9% of the yearly total.
Are garbage truck crashes common in ZIP 51576?
15 crashes involving garbage or refuse trucks have been reported in Pottawattamie County since 2015, 1.1% of all truck crashes.
What is the truck crash rate in ZIP 51576 compared with Iowa?
The yearly rate is 118.3 truck crashes per 100,000 residents in Pottawattamie County, vs 68.1 for Iowa.
How can I plan a safer truck route in ZIP 51576?
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.