ZIP 29448 (Harleyville, SC) truck route planning & crash data
Plan safer truck routes around ZIP 29448: 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
7.4 deaths per 100 garbage-truck crashes vs 4.0 for all trucks.
Deadliest roads
How Dorchester County compares with South Carolina
Dorchester County against South Carolina 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 | South Carolina | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 54.1 | 61.6 | 49.7 | 12% below the state |
| Deaths per 100 crashes | 4.0 | 3.9 | 3.4 | same |
| Injuries per crash | 0.61 | 0.64 | 0.49 | same |
| Garbage-truck share | 2.6% | 2.1% | 2.3% | 1.2× the state |
| On snow, slush or ice | 1.0% | 0.4% | 6.2% | 2.2× the state |
| Morning rush (6–10 am) | 23.9% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 10.9% | 11.4% | 13.8% | same |
| Winter months (Nov–Mar) | 42.4% | 40.5% | 41.9% | same |
| After dark | 23.2% | 21.5% | 24.8% | 1.1× the state |
Dorchester County sits below South Carolina on crashes per 100k residents / yr. Where it is higher: garbage-truck share, on snow, slush or ice and after dark.
What stands out in Dorchester County: 1.0% share of truck crashes on snow, slush or ice (South Carolina: 0.4%).
Overview
Police reported 1,097 crashes involving commercial trucks in Dorchester County since 2015: 659 people were injured and 48 were killed.
That averages about one truck crash every 4 days in fully reported years.
When crashes happen
March has the most truck crashes, 9.7% of the yearly total, while June has the fewest (6.7%).
November through March accounts for 42.4% of truck crashes here, compared with 40.5% in South Carolina.
By time of day, 1–2 pm stands out with 9.1% of truck crashes.
Road surface: 1.0% of truck crashes were on snow, slush or ice (South Carolina: 0.4%).
Where crashes happen
Within this area, I-26 had the most fatal crashes involving a large truck since 2015 (12). Next come I-95 (6), US-176 (2) and US-178 (2).
Garbage & waste trucks
29 crashes involved a garbage or refuse truck, a 2.6% share (South Carolina: 2.1%).
The most garbage-truck crashes happen in May (14%).
Per 100 crashes, garbage trucks recorded 7.4 deaths compared with 4.0 for all trucks.
Route planning tips for ZIP 29448 fleets
- Build extra time into March routes: it has the most truck crashes here.
- Check whether your routes use I-26, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in May; review collection routes for that month.
- 1.0% of truck crashes were on snow, slush or ice, above South Carolina; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Dorchester County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-26 | 12 |
| I-95 | 6 |
| US-176 | 2 |
| US-178 | 2 |
| SR-169 | 1 |
| US-15 | 1 |
| US-76 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Dorchester County) |
|---|---|
| I-95 | 79 |
| I-26 | 60 |
| US-78 | 22 |
| Ashley Phosphate Rd | 15 |
| Orangeburg Rd | 12 |
| Dorchester Rd | 11 |
| Us 78 Hwy | 10 |
| Central Ave | 9 |
ZIP 29448 at a glance
| Population | 1,997 |
| Density | 13 per sq mi |
| Median household income | $71,967 |
| Median home value | $184,721 |
| Home ownership | 84% |
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 | 52 | — | 1.7 |
| 2000s | 61 | +16% | 2.7 |
| 2010s | 76 | +25% | 2.4 |
| 2020s | 103 | +36% | 4.4 |
In the 1990s about 52 truck crashes a year were reported; in the 2020s, about 103. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 2.5 a year in 2016–19 and 4.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 29448
How many truck accidents are there in ZIP 29448?
Since 2015, 1,097 crashes involving commercial trucks were reported in Dorchester County (659 injured, 48 killed).
Which road has the most fatal truck crashes in ZIP 29448?
I-26 had 12 fatal crashes involving a large truck within 10 miles of ZIP 29448 since 2015, more than any other road.
What is the worst month for truck crashes in ZIP 29448?
The worst month is March: 9.7% of truck crashes in Dorchester County happen then.
How many garbage truck accidents happen in ZIP 29448?
Since 2015, Dorchester County has reported 29 garbage-truck crashes, or 2.6% of its truck crashes.
How does ZIP 29448 compare with South Carolina for truck crashes?
The yearly rate is 54.1 truck crashes per 100,000 residents in Dorchester County, vs 61.6 for South Carolina.
What is the best way to plan truck routes in ZIP 29448?
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.