Bike crashes on Bollinger Canyon Rd, San Ramon
- bike crashes, 2021–2025
- 19
- bike crashes, 2021–2025
- serious or fatal
- 3
- serious or fatal
- fatal
- 0
- fatal
Is Bollinger Canyon Rd in San Ramon safe to ride a bike?
We don't rate streets 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. This page covers traffic crashes, not crime. What the records show: 19 bike crashes were reported on Bollinger Canyon Rd in San Ramon from 2021–2025, 3 of them serious or fatal. The most were at Bollinger Canyon Rd & Dougherty Rd (8). 37% were side-impact crashes at junctions (drivers pulling out or turning across). 11% were sideswipes (close passes, right hooks, car doors).
How people on bikes get hit on Bollinger Canyon Rd
- 37% were side-impact crashes at junctions (drivers pulling out or turning across).
- 11% were sideswipes (close passes, right hooks, car doors).
- 16% were riders hit from behind.
- 26% happened after dark.
- 11% were hit-and-run.
Where on Bollinger Canyon Rd crashes cluster
Bollinger Canyon Rd & Dougherty Rd
8 crashes · 1 serious or fatalA mix of crash types
- No single crash pattern stands out here. Slow down, stay visible, and leave extra room.
Bollinger Canyon Rd & Alcosta Blvd
4 crashes · 2 serious or fatalA mix of crash types
50% happened after dark.
- No single crash pattern stands out here. Slow down, stay visible, and leave extra room.
- Use a front and rear light, even on lit streets.
Spots with 3 or more reported crashes within about 250 m, worst first.
When bike crashes happen on Bollinger Canyon Rd
The busiest hour was 8 a.m..
Bike crashes on Bollinger Canyon Rd by year
| Year | Crashes | Serious/fatal | |
|---|---|---|---|
| 2021 | 2 | 0 | |
| 2022 | 3 | 1 | |
| 2023 | 6 | 1 | |
| 2024 | 4 | 0 | |
| 2025 | 4 | 1 |
Common questions about Bollinger Canyon Rd
- Where on Bollinger Canyon Rd do the most bike crashes happen?
- Bollinger Canyon Rd & Dougherty Rd, with 8 reported bike crashes from 2021–2025, 1 of them serious or fatal. Next are Bollinger Canyon Rd & Alcosta Blvd (4).
- How do cyclists usually get hit on Bollinger Canyon Rd?
- 37% were side-impact crashes at junctions (drivers pulling out or turning across). 11% were sideswipes (close passes, right hooks, car doors). 16% were riders hit from behind. 26% happened after dark. 11% were hit-and-run.
- How many bike crashes happen on Bollinger Canyon Rd each year?
- Reported bike crashes on Bollinger Canyon Rd in San Ramon: 2021: 2, 2022: 3, 2023: 6, 2024: 4, 2025: 4. 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, counted by the street each report names first. Only crashes reported with map coordinates are counted, so the real totals are higher.
Source: California Crash Reporting System (CCRS), 2021–2025. Crashes are counted by the street each police report names first, so a crash at a corner counts toward one of its two streets. Only crashes reported with map coordinates are counted, so these numbers are lower than the real total. Long, busy streets show more crashes partly because more people use them. Data last rebuilt 2026-09-22. How the data works.