ZIP 57548 (Lower Brule, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57548: commercial truck and garbage truck crashes here and in Lyman 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
0 of 139 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Lyman County compares with South Dakota
Lyman County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lyman County stands out
Full comparison
| Measure (2015–2025) | Lyman County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 320.1 | 42.0 | 49.7 | 7.6× the state |
| Deaths per 100 crashes | 5.3 | 5.2 | 3.4 | same |
| Injuries per crash | 0.12 | 0.13 | 0.49 | 8% below the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 40.5% | 28.6% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 19.1% | 22.2% | 23.7% | 14% below the state |
| In rain, sleet or snow | 24.4% | 17.5% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 55.7% | 48.8% | 41.9% | 1.1× the state |
| After dark | 35.1% | 22.8% | 24.8% | 1.5× the state |
Compared with South Dakota, Lyman County is lower on injuries per crash, garbage-truck share and morning rush (6–10 am). It runs above South Dakota on crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow.
Lyman County at a glance: January 20.1% of truck crashes happen in January, more than any other month.
Overview
Since 2015, 139 crashes involving commercial trucks have been reported in Lyman County. They injured 25 people and killed 14.
Across the years with complete reporting, that is roughly one truck crash every 31 days.
When crashes happen
January has the most truck crashes, 20.1% of the yearly total, while February has the fewest (3.6%).
The five winter months (November to March) hold 55.7% of truck crashes, against 48.8% across South Dakota.
More truck crashes happen at 8–9 am than at any other hour (7.9%).
40.5% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of ZIP 57548.
Garbage & waste trucks
No crashes involving garbage or refuse trucks have been reported in Lyman County since 2015.
Route planning tips for ZIP 57548 fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Lyman County.
- With 40.5% of truck crashes on snow, slush or ice (above South Dakota), plan winter equipment checks early.
- 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 Lyman County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lyman County) |
|---|---|
| I-90 | 89 |
| Sd Hwy 47 | 22 |
| US-83 | 10 |
| Sd Hwy 248 | 3 |
| 0.169 Miles W Of 324 Ave | 2 |
| Ave | 2 |
| Sd Hwy 273 | 2 |
| US-183 | 2 |
ZIP 57548 at a glance
| Population | 1,442 |
| Density | 6 per sq mi |
| Median household income | $35,750 |
| Median home value | $40,080 |
| Home ownership | 34% |
Historical data: truck crashes in Lyman 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 | 7 | — | 0.4 |
| 2000s | 8 | +19% | 0.2 |
| 2010s | 9 | +18% | 0.3 |
| 2020s | 14 | +47% | 0.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 7 to 14. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.5 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57548
How many truck crashes happen in ZIP 57548?
Lyman County has had 139 reported truck crashes since 2015, injuring 25 people and killing 14.
Which month has the most truck crashes in ZIP 57548?
Truck crashes in Lyman County peak in January, with 20.1% of the year's crashes.
Are garbage truck crashes common in ZIP 57548?
Garbage trucks were involved in 0 reported crashes in Lyman County since 2015 (0.0% of truck crashes).
What is the truck crash rate in ZIP 57548 compared with South Dakota?
Per 100,000 residents, Lyman County has 320.1 truck crashes a year; South Dakota has 42.0.
How do I plan a garbage truck route in ZIP 57548?
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.