Hermosa, SD truck route planning & crash data
Plan safer truck routes in Hermosa: commercial truck and garbage truck crashes in Hermosa and Custer County, dangerous roads, seasonality and route safety data for fleets. Patterns use Custer County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3 of 61 truck crashes since 2015.
Deadliest roads
How Custer County compares with South Dakota
Custer County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Custer County stands out
Full comparison
| Measure (2015–2025) | Custer County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 57.5 | 42.0 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 6.8 | 5.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.05 | 0.13 | 0.49 | 62% below the state |
| Garbage-truck share | 5.1% | 1.6% | 2.3% | 3.2× the state |
| On snow, slush or ice | 23.7% | 28.6% | 6.2% | 17% below the state |
| Morning rush (6–10 am) | 22.0% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 13.6% | 17.5% | 13.8% | 23% below the state |
| Winter months (Nov–Mar) | 40.7% | 48.8% | 41.9% | 17% below the state |
| After dark | 18.6% | 22.8% | 24.8% | 18% below the state |
Custer County has lower values than South Dakota for injuries per crash, on snow, slush or ice and in rain, sleet or snow. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and garbage-truck share.
The headline for Custer County: 1 in 20 garbage-truck share of crashes is 5.1%, against 1.6% for South Dakota.
Overview
Police reported 61 crashes involving commercial trucks in Custer County since 2015: 3 people were injured and 4 were killed.
That averages about one truck crash every 68 days in fully reported years.
Only 1 truck crash was reported in Hermosa since 2015; patterns below come from Custer County as a whole.
When crashes happen
Truck crashes peak in June (16.4% of the year) and are lowest in October (3.3%).
Winter months (Nov–Mar) carry 40.7% of truck crashes, vs 48.8% for South Dakota.
The busiest hour is 1–2 pm, with 13.1% of truck crashes.
Snow, slush or ice was on the road in 23.7% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Hermosa since 2015: SR-79 (2). No single road stands out.
Garbage & waste trucks
3 crashes involved a garbage or refuse truck, a 4.9% share (South Dakota: 1.6%).
Route planning tips for Hermosa fleets
- Build extra time into June routes: it has the most truck crashes here.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Custer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-79 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Custer County) |
|---|---|
| Sd Hwy 79 | 38 |
| US-16 | 5 |
| US-385 | 4 |
| 7-11 Rd | 2 |
| Sd Hwy 89 | 2 |
| 2Nd St | 1 |
| Bender Ridge Rd | 1 |
| French Creek Rd | 1 |
Hermosa at a glance
| Population | 381 |
| Land area | 0.9 sq mi |
| Density | 440 per sq mi |
| Median household income (ZIP 57744) | $106,250 |
| Median home value (ZIP 57744) | $379,348 |
Waste facilities and haulers nearby
Historical data: truck crashes in Custer 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 | 4 | — | 0.4 |
| 2000s | 4 | -4% | 0.1 |
| 2010s | 4 | -12% | 0.2 |
| 2020s | 7 | +85% | 0.6 |
In the 1990s about 4 truck crashes a year were reported; in the 2020s, about 7. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.6 a year in 2020–24.
Nearby places
Questions fleets ask about Hermosa
How common are truck crashes in Hermosa?
Since 2015, 61 crashes involving commercial trucks were reported in Custer County (3 injured, 4 killed).
What is the worst month for truck crashes in Hermosa?
June has the most truck crashes in Custer County, 16.4% of the yearly total.
Are garbage truck crashes common in Hermosa?
Garbage trucks were involved in 3 reported crashes in Custer County since 2015 (4.9% of truck crashes).
How does Hermosa compare with South Dakota for truck crashes?
Per 100,000 residents, Custer County has 57.5 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in Hermosa?
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.