ZIP 78674 (Weir, TX) truck route planning & crash data
Plan safer truck routes around ZIP 78674: commercial truck and garbage truck crashes here and in Williamson 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
2.0 deaths per 100 garbage-truck crashes vs 2.7 for all trucks.
Deadliest roads
How Williamson County compares with Texas
Williamson County against Texas and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Williamson County stands out
Full comparison
| Measure (2015–2025) | Williamson County | Texas | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 39.0 | 62.9 | 49.7 | 38% below the state |
| Deaths per 100 crashes | 2.7 | 4.1 | 3.4 | 34% below the state |
| Injuries per crash | 0.48 | 0.58 | 0.49 | 17% below the state |
| Garbage-truck share | 1.6% | 1.1% | 2.3% | 1.4× the state |
| On snow, slush or ice | 1.8% | 1.7% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 27.4% | 22.6% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 7.6% | 11.3% | 13.8% | 32% below the state |
| Winter months (Nov–Mar) | 39.5% | 40.8% | 41.9% | same |
| After dark | 23.3% | 27.0% | 24.8% | 14% below the state |
Compared with Texas, Williamson County is lower on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It runs above Texas on garbage-truck share, on snow, slush or ice and morning rush (6–10 am).
The headline for ZIP 78674: 2.4× fatal truck crashes within 10 miles of ZIP 78674 per year, 2020–24 vs 2016–19 (4.2 vs 1.8).
Overview
Since 2015, 3,299 crashes involving commercial trucks have been reported in Williamson County. They injured 1,603 people and killed 90.
In complete reporting years that works out to about 1 truck crash a day.
When crashes happen
Truck crashes peak in August (9.3% of the year) and are lowest in December (7.2%).
Winter months (Nov–Mar) carry 39.5% of truck crashes, vs 40.8% for Texas.
More truck crashes happen at 7–8 am than at any other hour (8.0%).
Snow, slush or ice was on the road in 1.8% of truck crashes, compared with 1.7% in Texas.
Where crashes happen
I-35 leads within 10 miles of ZIP 78674 with 8 fatal crashes involving a large truck since 2015. It is followed by CR-CHANDLER Rd (3), Fm 1660 (3) and SR-130 (3).
Garbage & waste trucks
Garbage trucks account for 50 of the truck crashes here, or 1.5%, compared with 1.1% in Texas.
The most garbage-truck crashes happen in March (12%).
They recorded 2.0 deaths per 100 crashes, against 2.7 for all trucks.
Route planning tips for ZIP 78674 fleets
- Build extra time into August routes: it has the most truck crashes here.
- Look at alternatives to I-35 at busy times: it leads this area in fatal truck crashes.
- For residential and commercial waste routes, look again at March schedules: garbage-truck crashes peak then.
- 27.4% of truck crashes happen between 6 and 10 am, above Texas; consider earlier or later starts where possible.
- With 1.8% of truck crashes on snow, slush or ice (above Texas), 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
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Williamson County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-35 | 8 |
| CR-CHANDLER Rd | 3 |
| Fm 1660 | 3 |
| SR-130 | 3 |
| US-79 | 3 |
| SR-29 | 2 |
| CR-132 | 1 |
| CR-234 | 1 |
| CR-RONALD Reagan Blvd | 1 |
| Inner Loop | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Williamson County) |
|---|---|
| Chandler Rd | 62 |
| University Blvd | 42 |
| Sh 195 | 41 |
| Sh 130 | 31 |
| Williams Dr | 30 |
| I-35 | 28 |
| Limmer Loop | 27 |
| Louis Henna Blvd | 23 |
ZIP 78674 at a glance
| Population | 108 |
| Density | 117 per sq mi |
| Home ownership | 100% |
Waste facilities and haulers nearby
Historical data: truck crashes in Williamson 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 | 112 | — | 4.4 |
| 2000s | 169 | +50% | 4.9 |
| 2010s | 175 | +4% | 3.5 |
| 2020s | 328 | +87% | 10.0 |
In the 1990s about 112 truck crashes a year were reported; in the 2020s, about 328. Reporting coverage also changed between these periods. NHTSA counts 4.0 fatal large-truck crashes a year in 2016–19 and 10.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 78674
How many truck accidents are there in ZIP 78674?
Since 2015, 3,299 crashes involving commercial trucks were reported in Williamson County (1,603 injured, 90 killed).
What is the most dangerous road for trucks in ZIP 78674?
NHTSA data shows I-35 with 8 fatal large-truck crashes within 10 miles of ZIP 78674 since 2015, the highest of any road.
Which month has the most truck crashes in ZIP 78674?
Truck crashes in Williamson County peak in August, with 9.3% of the year's crashes.
How many garbage truck crashes are there in ZIP 78674?
50 crashes involving garbage or refuse trucks have been reported in Williamson County since 2015, 1.5% of all truck crashes.
How do truck crashes in ZIP 78674 compare with Texas?
Williamson County records 39.0 truck crashes per 100,000 residents a year, against 62.9 across Texas.
How can I plan a safer truck route in ZIP 78674?
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.