ZIP 37166 (Smithville, TN) truck route planning & crash data
Plan safer truck routes around ZIP 37166: commercial truck and garbage truck crashes here and in DeKalb 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
4 of 115 truck crashes since 2015.
Deadliest roads
How DeKalb County compares with Tennessee
DeKalb County against Tennessee and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where DeKalb County stands out
Full comparison
| Measure (2015–2025) | DeKalb County | Tennessee | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 45.6 | 60.1 | 49.7 | 24% below the state |
| Deaths per 100 crashes | 0.9 | 3.9 | 3.4 | 77% below the state |
| Injuries per crash | 0.49 | 0.48 | 0.49 | same |
| Garbage-truck share | 3.7% | 1.9% | 2.3% | 1.9× the state |
| On snow, slush or ice | 0.9% | 2.3% | 6.2% | 61% below the state |
| Morning rush (6–10 am) | 25.7% | 21.8% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 9.2% | 14.9% | 13.8% | 39% below the state |
| Winter months (Nov–Mar) | 44.0% | 40.5% | 41.9% | 1.1× the state |
| After dark | 9.2% | 25.9% | 24.8% | 65% below the state |
DeKalb County sits below Tennessee on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above Tennessee on garbage-truck share, morning rush (6–10 am) and winter months (nov–mar).
The headline for DeKalb County: 1 in 27 garbage-truck share of crashes is 3.7%, against 1.9% for Tennessee.
Overview
DeKalb County has recorded 115 truck crashes since 2015, with 58 people injured and 1 killed.
In complete reporting years that works out to about one truck crash every 37 days.
When crashes happen
The worst month is March with 12.2% of truck crashes; the quietest is February at 2.6%.
The five winter months (November to March) hold 44.0% of truck crashes, against 40.5% across Tennessee.
More truck crashes happen at 1–2 pm than at any other hour (13.9%).
Snow, slush or ice was on the road in 0.9% of truck crashes, compared with 2.3% in Tennessee.
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 37166 since 2015 were spread across roads: SR-56 (1) and SR-83 (1).
Garbage & waste trucks
Garbage trucks account for 4 of the truck crashes here, or 3.5%, compared with 1.9% in Tennessee.
Route planning tips for ZIP 37166 fleets
- Review driver schedules for March, the month with the most truck crashes.
- Morning starts matter: 25.7% of truck crashes fall between 6 and 10 am, higher than Tennessee.
- 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 DeKalb County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-56 | 1 |
| SR-83 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (DeKalb County) |
|---|---|
| Nashville Hwy | 14 |
| Allen Ferry Rd | 9 |
| Sparta Hwy | 8 |
| Mcminnville Hwy | 8 |
| S Congress Blvd | 6 |
| Short Mountain Hwy | 6 |
| W Broad St | 6 |
| US-70 | 5 |
ZIP 37166 at a glance
| Population | 15,731 |
| Density | 39 per sq mi |
| Median household income | $52,797 |
| Median home value | $225,015 |
| Home ownership | 72% |
Waste facilities and haulers nearby
Historical data: truck crashes in DeKalb 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 | 5 | — | 0.5 |
| 2000s | 7 | +43% | 0.3 |
| 2010s | 7 | +1% | 0.2 |
| 2020s | 10 | +43% | 0.2 |
Reported truck crashes averaged 5 a year in the 1990s and 10 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 0.0 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 37166
How common are truck crashes in ZIP 37166?
115 truck crashes have been reported in DeKalb County since 2015, with 1 deaths and 58 injuries.
When do most truck crashes happen in ZIP 37166?
The worst month is March: 12.2% of truck crashes in DeKalb County happen then.
How many garbage truck accidents happen in ZIP 37166?
4 crashes involving garbage or refuse trucks have been reported in DeKalb County since 2015, 3.5% of all truck crashes.
What is the truck crash rate in ZIP 37166 compared with Tennessee?
The yearly rate is 45.6 truck crashes per 100,000 residents in DeKalb County, vs 60.1 for Tennessee.
How do I plan a garbage truck route in ZIP 37166?
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.