Data last rebuilt 2026-09-22

Motorcycle crash hotspots in Ontario, CA

230 motorcycle crashes were reported in Ontario from 2021–2025, 51 of them serious or fatal (12 fatal). Below are the spots where they keep happening, what usually goes wrong at each one, and what to watch for.
motorcycle crashes, 2021–2025
230
motorcycle crashes, 2021–2025
serious or fatal
51
serious or fatal
fatal
12
fatal
These numbers are too low for Ontario. Only 55% of the motorcycle crashes reported here have a map location. The rest come from police reports sent to the state without coordinates, so they're missing from the map and from the counts on this page.

Is Ontario safe to ride a motorcycle?

We don't rate cities as safe or unsafe: crash counts can't say how risky a street is, and busy streets have more crashes partly because more people use them. The records for Ontario are also incomplete: only 55% of its reported motorcycle crashes have a map location, so the numbers here are too low. What the records show: 230 motorcycle crashes were reported in Ontario from 2021–2025, 51 of them serious or fatal (12 fatal). The most were at I-10 (San Bernardino Fwy) & Milliken Ave (11).

How motorcyclists crash in Ontario

  • 13% involved no other vehicle, usually running wide or losing grip.
  • 24% happened after dark.

Where motorcycle crashes cluster

Spots with 3 or more reported crashes within about 250 m, worst first.

  1. 0111 crashes · 2 serious or fatal

    I-10 (San Bernardino Fwy) & Milliken Ave

    Riders hit from behind

    4 of 11 crashes were rear-end: hit from behind. Traffic is posted at about 55 mph.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  2. 0211 crashes · 2 serious or fatal

    I-10 (San Bernardino Fwy) & Vineyard Ave

    Close passes and cars turning alongside

    5 of 11 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door. Traffic is posted at about 55 mph.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  3. 038 crashes · 2 serious or fatal · 1 fatal

    SR-60 (Pomona Fwy) & Milliken Ave

    Close passes and cars turning alongside

    4 of 8 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door. Traffic is posted at about 65 mph.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  4. 046 crashes · 2 serious or fatal · 1 fatal

    SR-60 (Pomona Fwy) & Vineyard Ave

    Close passes and cars turning alongside

    6 of 6 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door. Traffic is posted at about 65 mph.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  5. 056 crashes · 2 serious or fatal · 1 fatal

    I-10 (San Bernardino Fwy) & 4th St

    Close passes and cars turning alongside

    3 of 6 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door. Traffic is posted at about 55 mph.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  6. 065 crashes · 4 serious or fatal

    I-10 (San Bernardino Fwy) & Haven Ave

    Riders hit from behind

    3 of 5 crashes were rear-end: hit from behind. Traffic is posted at about 65 mph.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  7. 078 crashes · 2 serious or fatal

    I-10 (San Bernardino Fwy) & Haven Ave

    Riders hit from behind

    3 of 8 crashes were rear-end: hit from behind. 50% happened after dark. Traffic is posted at about 65 mph.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    • Wear bright or reflective gear and use your high beam where you can.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  8. 085 crashes · 3 serious or fatal

    SR-60 (Pomona Fwy) & Grove Ave

    Riders hit from behind

    4 of 5 crashes were rear-end: hit from behind. 40% happened after dark. Traffic is posted at about 55 mph.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    • Wear bright or reflective gear and use your high beam where you can.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  9. 097 crashes · 1 serious or fatal

    I-15 (Ontario Fwy) & Fourth Street

    Riders hit from behind

    4 of 7 crashes were rear-end: hit from behind. Traffic is posted at about 65 mph.

    • Check your mirrors when slowing, flash your brake light, and leave an escape gap when you stop in traffic.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map
  10. 105 crashes · 2 serious or fatal

    I-10 (San Bernardino Fwy) & Haven Avenue

    Close passes and cars turning alongside

    2 of 5 crashes were sideswipes: a vehicle alongside, typically a close pass, a right hook, or an opening car door. 40% happened after dark. Traffic is posted at about 55 mph.

    • Don't linger in drivers' blind spots, and watch for cars changing lanes or turning into driveways alongside you.
    • Wear bright or reflective gear and use your high beam where you can.
    • Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
    See it on the map

Motorcycle crashes in Ontario by year

YearCrashesSerious/fatal
20215812
20224610
20235214
2024384
20253611

Common questions about Ontario

Where do the most motorcycle crashes happen in Ontario?
The worst spot is I-10 (San Bernardino Fwy) & Milliken Ave, with 11 reported motorcycle crashes from 2021–2025, 2 of them serious or fatal. Next are I-10 (San Bernardino Fwy) & Vineyard Ave (11) and SR-60 (Pomona Fwy) & Milliken Ave (8). These counts are too low for Ontario: only 55% of its reported motorcycle crashes have a map location.
How many motorcyclists were killed in Ontario?
12 crashes killed someone in 230 reported motorcycle crashes in Ontario from 2021–2025, and 51 left someone seriously hurt or killed. These counts are too low for Ontario: only 55% of its reported motorcycle crashes have a map location.
How do motorcyclists usually crash in Ontario?
13% involved no other vehicle, usually running wide or losing grip. 24% happened after dark.
How many motorcycle crashes happen in Ontario each year?
Reported motorcycle crashes with map locations: 2021: 58, 2022: 46, 2023: 52, 2024: 38, 2025: 36. The latest year can rise as late reports come in.
Where does this data come from?
Police crash reports in the California Crash Reporting System (CCRS), published by the state on data.ca.gov. Only crashes reported with map coordinates are counted, so the real totals are higher.

Nearby cities

Source: California Crash Reporting System (CCRS), 2021–2025. Only crashes reported with map coordinates are counted, and many city police reports have none, so these numbers are lower than the real total. Freeway crashes are included: many motorcycle crashes in cities happen on them. Busy streets show more crashes partly because more people use them. Data last rebuilt 2026-09-22. How the data works.