Green Grass, SD truck route planning & crash data
Plan safer truck routes in Green Grass: commercial truck and garbage truck crashes in Green Grass and Dewey County, dangerous roads, seasonality and route safety data for fleets. Patterns use Dewey County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 12 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
Dewey County at a glance: 12 truck crashes on record for Dewey County since 2015.
Overview
Police reported 12 crashes involving commercial trucks in Dewey County since 2015: 3 people were injured and 3 were killed.
That averages about one truck crash every 335 days in fully reported years.
Green Grass had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Dewey County numbers.
When crashes happen
There are too few truck crashes in Dewey County to show a reliable monthly pattern.
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of Green Grass.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Dewey County since 2015.
Route planning tips for Green Grass fleets
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Dewey County
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 (Dewey County) |
|---|---|
| US-212 | 6 |
| Sd Hwy 20 | 2 |
| Sd Hwy 63 | 2 |
| Ave | 1 |
Green Grass at a glance
| Land area | 8.1 sq mi |
| Median household income (ZIP 57636) | $112,375 |
Waste facilities and haulers nearby
Historical data: truck crashes in Dewey 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 | — | 0.1 |
| 2000s | 1 | +33% | 0.1 |
| 2010s | 2 | +88% | 0.2 |
| 2020s | 1 | -22% | 0.4 |
Reported truck crashes averaged 1 a year in the 1990s and 1 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 places
Questions fleets ask about Green Grass
How many truck accidents are there in Green Grass?
Since 2015, 12 crashes involving commercial trucks were reported in Dewey County (3 injured, 3 killed).
How many garbage truck crashes are there in Green Grass?
Garbage trucks were involved in 0 reported crashes in Dewey County since 2015 (0.0% of truck crashes).
What is the best way to plan truck routes in Green Grass?
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.