ZIP 21664 (Secretary, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21664: commercial truck and garbage truck crashes here and in Dorchester 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
9 of 225 truck crashes since 2015.
Deadliest roads
How Dorchester County compares with Maryland
Dorchester County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Dorchester County stands out
Full comparison
| Measure (2015–2025) | Dorchester County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 57.9 | 49.3 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 4.3 | 2.2 | 3.4 | 2.0× the state |
| Injuries per crash | 0.62 | 0.53 | 0.49 | 1.2× the state |
| Garbage-truck share | 3.3% | 3.1% | 2.3% | 1.1× the state |
| On snow, slush or ice | 1.9% | 2.4% | 6.2% | 21% below the state |
| Morning rush (6–10 am) | 28.0% | 24.7% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 11.4% | 13.8% | 13.8% | 18% below the state |
| Winter months (Nov–Mar) | 40.8% | 40.4% | 41.9% | same |
| After dark | 18.5% | 25.2% | 24.8% | 27% below the state |
Dorchester County has lower values than Maryland for on snow, slush or ice, in rain, sleet or snow and after dark. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
Dorchester County at a glance: 4.3 deaths per 100 truck crashes, vs 2.2 in Maryland.
Overview
Since 2015, 225 crashes involving commercial trucks have been reported in Dorchester County. They injured 135 people and killed 9.
That averages about one truck crash every 19 days in fully reported years.
When crashes happen
Truck crashes peak in August (13.3% of the year) and are lowest in April (4.0%).
November through March accounts for 40.8% of truck crashes here, compared with 40.4% in Maryland.
More truck crashes happen at 7–8 am than at any other hour (9.3%).
Road surface: 1.9% of truck crashes were on snow, slush or ice (Maryland: 2.4%).
Where crashes happen
Within this area, SR-392 had the most fatal crashes involving a large truck since 2015 (2). Next come SR-16 (1), SR-307 (1) and SR-313 (1).
Garbage & waste trucks
Garbage trucks account for 9 of the truck crashes here, or 4.0%, compared with 3.1% in Maryland.
Route planning tips for ZIP 21664 fleets
- Review driver schedules for August, the month with the most truck crashes.
- Look at alternatives to SR-392 at busy times: it leads this area in fatal truck crashes.
- The morning rush (6–10 am) holds 28.0% of truck crashes here, more than Maryland; adjust start times where you can.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Dorchester County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-392 | 2 |
| SR-16 | 1 |
| SR-307 | 1 |
| SR-313 | 1 |
| US-50 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Dorchester County) |
|---|---|
| Ocean Gateway | 59 |
| Sunburst Hwy | 14 |
| Eldorado Rd | 10 |
| Acrs Marked Off Road | 10 |
| East New Market Ellwood Rd | 9 |
| Finchville Reliance Rd | 8 |
| Harrison Ferry Rd | 6 |
| Williamsburg Rd | 6 |
ZIP 21664 at a glance
| Population | 635 |
| Density | 842 per sq mi |
| Median household income | $82,721 |
| Median home value | $171,765 |
| Home ownership | 70% |
Waste facilities and haulers nearby
Historical data: truck crashes in Dorchester 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 | 11 | — | 0.3 |
| 2000s | 12 | +3% | 0.6 |
| 2010s | 14 | +19% | 0.4 |
| 2020s | 22 | +60% | 0.8 |
Reported truck crashes averaged 11 a year in the 1990s and 22 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 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21664
How common are truck crashes in ZIP 21664?
Since 2015, 225 crashes involving commercial trucks were reported in Dorchester County (135 injured, 9 killed).
What is the most dangerous road for trucks in ZIP 21664?
NHTSA data shows SR-392 with 2 fatal large-truck crashes within 10 miles of ZIP 21664 since 2015, the highest of any road.
When do most truck crashes happen in ZIP 21664?
August has the most truck crashes in Dorchester County, 13.3% of the yearly total.
How many garbage truck accidents happen in ZIP 21664?
Garbage trucks were involved in 9 reported crashes in Dorchester County since 2015 (4.0% of truck crashes).
What is the truck crash rate in ZIP 21664 compared with Maryland?
Per 100,000 residents, Dorchester County has 57.9 truck crashes a year; Maryland has 49.3.
What is the best way to plan truck routes in ZIP 21664?
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.