Emerald Lake Hills, CA truck route planning & crash data
Plan safer truck routes in Emerald Lake Hills: commercial truck and garbage truck crashes in Emerald Lake Hills and San Mateo County, dangerous roads, seasonality and route safety data for fleets. Patterns use San Mateo County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
7.5 deaths per 100 garbage-truck crashes vs 2.7 for all trucks.
Deadliest roads
How San Mateo County compares with California
San Mateo County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Mateo County stands out
Full comparison
| Measure (2015–2025) | San Mateo County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 15.7 | 33.2 | 49.7 | 53% below the state |
| Deaths per 100 crashes | 2.7 | 3.6 | 3.4 | 25% below the state |
| Injuries per crash | 0.47 | 0.44 | 0.49 | same |
| Garbage-truck share | 3.1% | 1.6% | 2.3% | 1.9× the state |
| On snow, slush or ice | 0.0% | 0.9% | 6.2% | 100% below the state |
| Morning rush (6–10 am) | 28.0% | 23.5% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 6.6% | 6.5% | 13.8% | same |
| Winter months (Nov–Mar) | 39.0% | 40.2% | 41.9% | same |
| After dark | 22.3% | 29.1% | 24.8% | 23% below the state |
San Mateo County has lower values than California for crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above California on garbage-truck share and morning rush (6–10 am).
What stands out in San Mateo County: 1 in 32 of truck crashes here involve garbage trucks: 3.1%, vs 1.6% in California.
Overview
Police reported 1,319 crashes involving commercial trucks in San Mateo County since 2015: 630 people were injured and 36 were killed.
In complete reporting years that works out to about one truck crash every 3 days.
With 0 truck crashes reported in Emerald Lake Hills since 2015, this page uses San Mateo County numbers for its patterns and comparisons.
When crashes happen
The worst month is June with 10.8% of truck crashes; the quietest is May at 6.7%.
Winter months (Nov–Mar) carry 39.0% of truck crashes, vs 40.2% for California.
By time of day, 8–9 am stands out with 8.4% of truck crashes.
Road surface: 0.0% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
US-101 leads within 10 miles of Emerald Lake Hills with 8 fatal crashes involving a large truck since 2015. After it: SR-84 (2), Black Mountain Rd (1) and Broadway St (1).
Garbage & waste trucks
Garbage trucks account for 40 of the truck crashes here, or 3.0%, compared with 1.6% in California.
Their busiest month is September, with 18% of garbage-truck crashes.
Deaths per 100 garbage-truck crashes: 7.5, vs 2.7 for all truck crashes.
Route planning tips for Emerald Lake Hills fleets
- Plan June schedules with more margin; it is the worst month for truck crashes in San Mateo County.
- Check whether your routes use US-101, the road with the most fatal truck crashes in this area.
- For residential and commercial waste routes, look again at September schedules: garbage-truck crashes peak then.
- Morning starts matter: 28.0% of truck crashes fall between 6 and 10 am, higher than California.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 San Mateo County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 8 |
| SR-84 | 2 |
| Black Mountain Rd | 1 |
| Broadway St | 1 |
| California Dr | 1 |
| Canada Rd | 1 |
| Crestview Dr | 1 |
| Floribunda Ave | 1 |
| I-280 | 1 |
| Pulgas Av | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Mateo County) |
|---|---|
| Us-101 N/B | 15 |
| Us-101 S/B | 9 |
| Rt92/.3M E Rt35 | 4 |
| Rt92/3.6M E Foster City Bl | 4 |
| Sr-92 E/B | 4 |
| Woodside Rd/Broadway | 3 |
| SR-1 | 3 |
| Rt92/100Ft W Pilarcitos Creek Rd | 3 |
Emerald Lake Hills at a glance
| Land area | 1.2 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in San Mateo 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 | — | — | 2.8 |
| 2000s | 77 | — | 2.2 |
| 2010s | 115 | +49% | 2.2 |
| 2020s | 102 | -11% | 2.2 |
Reported truck crashes averaged 77 a year in the 2000s and 102 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 3.8 fatal large-truck crashes a year in 2016–19 and 2.2 a year in 2020–24.
Nearby places
Questions fleets ask about Emerald Lake Hills
How many truck crashes happen in Emerald Lake Hills?
1,319 truck crashes have been reported in San Mateo County since 2015, with 36 deaths and 630 injuries.
Where do fatal truck crashes happen most in Emerald Lake Hills?
US-101 had 8 fatal crashes involving a large truck within 10 miles of Emerald Lake Hills since 2015, more than any other road.
When do most truck crashes happen in Emerald Lake Hills?
Truck crashes in San Mateo County peak in June, with 10.8% of the year's crashes.
Are garbage truck crashes common in Emerald Lake Hills?
Garbage trucks were involved in 40 reported crashes in San Mateo County since 2015 (3.0% of truck crashes).
What is the truck crash rate in Emerald Lake Hills compared with California?
San Mateo County records 15.7 truck crashes per 100,000 residents a year, against 33.2 across California.
How can I plan a safer truck route in Emerald Lake Hills?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.