ZIP 99116 (Coulee Dam, WA) truck route planning & crash data
Plan safer truck routes around ZIP 99116: commercial truck and garbage truck crashes here and in Okanogan 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
3 of 82 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Okanogan County compares with Washington
Okanogan County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Okanogan County stands out
Full comparison
| Measure (2015–2025) | Okanogan County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 15.8 | 25.8 | 49.7 | 39% below the state |
| Deaths per 100 crashes | 10.3 | 3.4 | 3.4 | 3.0× the state |
| Injuries per crash | 0.27 | 0.18 | 0.49 | 1.5× the state |
| Garbage-truck share | 3.9% | 2.2% | 2.3% | 1.8× the state |
| On snow, slush or ice | 14.1% | 9.7% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 23.1% | 24.8% | 23.7% | same |
| In rain, sleet or snow | 7.7% | 20.2% | 13.8% | 62% below the state |
| Winter months (Nov–Mar) | 42.3% | 43.8% | 41.9% | same |
| After dark | 23.1% | 25.2% | 24.8% | 8% below the state |
Okanogan County has lower values than Washington for crashes per 100k residents / yr, in rain, sleet or snow and after dark. Where it is higher: deaths per 100 crashes, injuries per crash and garbage-truck share.
Okanogan County at a glance: 10.3 deaths for every 100 truck crashes, against 3.4 across Washington.
Overview
Since 2015, 82 crashes involving commercial trucks have been reported in Okanogan County. They injured 24 people and killed 8.
That averages about one truck crash every 51 days in fully reported years.
When crashes happen
Truck crashes peak in July (15.9% of the year) and are lowest in June (2.4%).
Winter months (Nov–Mar) carry 42.3% of truck crashes, vs 43.8% for Washington.
The busiest hour is 11 am–12 pm, with 11.0% of truck crashes.
Snow, slush or ice was on the road in 14.1% of truck crashes, compared with 9.7% in Washington.
Where crashes happen
No fatal crash involving a large truck has a recorded location within 10 miles of ZIP 99116 since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 3 crashes, 3.7% of the total, against 2.2% across Washington.
Route planning tips for ZIP 99116 fleets
- Build extra time into July routes: it has the most truck crashes here.
- With 14.1% of truck crashes on snow, slush or ice (above Washington), 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 Okanogan County
By hour of day
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 (Okanogan County) |
|---|---|
| Sr-97*292.32 | 3 |
| Old Highway 97 | 2 |
| Sr-153*008.86 | 2 |
| Sr-155*056.00 | 2 |
| Sr-97*260.00 | 2 |
| Sr-97*267.90 | 2 |
| Sr-97*278.00 | 2 |
| Sr-97*292.30 | 2 |
ZIP 99116 at a glance
| Population | 1,786 |
| Density | 15 per sq mi |
| Median household income | $65,946 |
| Median home value | $232,263 |
| Home ownership | 67% |
Waste facilities and haulers nearby
Historical data: truck crashes in Okanogan 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 | 10 | — | 1.1 |
| 2000s | 10 | -8% | 0.8 |
| 2010s | 8 | -13% | 0.9 |
| 2020s | 6 | -25% | 0.4 |
Reported truck crashes averaged 10 a year in the 1990s and 6 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.5 a year in 2016–19, 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 99116
How common are truck crashes in ZIP 99116?
Since 2015, 82 crashes involving commercial trucks were reported in Okanogan County (24 injured, 8 killed).
What is the worst month for truck crashes in ZIP 99116?
Truck crashes in Okanogan County peak in July, with 15.9% of the year's crashes.
How many garbage truck accidents happen in ZIP 99116?
Garbage trucks were involved in 3 reported crashes in Okanogan County since 2015 (3.7% of truck crashes).
How does ZIP 99116 compare with Washington for truck crashes?
Okanogan County records 15.8 truck crashes per 100,000 residents a year, against 25.8 across Washington.
How can I plan a safer truck route in ZIP 99116?
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.