Rancho Cucamonga intersections ranked by reported crashes
38 confirmed surface-street junctions in Rancho Cucamonga, San Bernardino County, carrying 683 reported crashes between them in 2023, 2024 and 2025. 50 junctions were attempted here and 38 could be confirmed by two independent sources; the rest were dropped rather than guessed at.
This is a count of reported crashes, not a measure of risk. It is not adjusted for traffic volume, and a difference of two or three crashes between neighbouring rows is within ordinary year-to-year variation rather than a real gap. It says nothing about fault or about any individual claim.
| # | Junction | County | Crashes | Injured | Killed | 2026 so far part year, not ranked |
|---|---|---|---|---|---|---|
| 1 | Foothill Bl & Haven Av | San Bernardino | 38 | 17 | 1 | 8 |
| 2 | Day Creek Bl & Foothill Bl | San Bernardino | 37 | 25 | 0 | 6 |
| 3 | Foothill Bl & Vineyard Av | San Bernardino | 25 | 9 | 0 | 9 |
| 4 | Baker Av & Foothill Bl | San Bernardino | 24 | 7 | 1 | 2 |
| 5 | Archibald Av & Foothill Bl | San Bernardino | 24 | 9 | 0 | 2 |
| 6 | Arrow Rt & Haven Av | San Bernardino | 24 | 8 | 0 | 5 |
| 7 | Etiwanda Av & Foothill Bl | San Bernardino | 23 | 14 | 2 | 5 |
| 8 | 6TH St & Hermosa Av | San Bernardino | 23 | 20 | 1 | 3 |
| 9 | Foothill Bl & Rochester Av | San Bernardino | 23 | 16 | 0 | 3 |
| 10 | Foothill Bl & Hermosa Av | San Bernardino | 23 | 8 | 0 | 2 |
| 11 | 19TH St & Carnelian St | San Bernardino | 21 | 10 | 0 | 3 |
| 12 | 6TH St & Haven Av | San Bernardino | 20 | 8 | 0 | 5 |
| 13 | Foothill Bl & Spruce Av | San Bernardino | 19 | 11 | 0 | 4 |
| 14 | Foothill Bl & Hellman Av | San Bernardino | 19 | 7 | 0 | 5 |
| 15 | 6TH St & Archibald Av | San Bernardino | 19 | 5 | 0 | 3 |
| 16 | Church St & Elm Av | San Bernardino | 18 | 14 | 0 | 3 |
| 17 | Church St & Haven Av | San Bernardino | 16 | 12 | 0 | 5 |
| 18 | Civic Center Dr & Haven Av | San Bernardino | 16 | 11 | 0 | none reported yet |
| 19 | Arrow Rt & Hermosa Av | San Bernardino | 16 | 10 | 0 | 1 |
| 20 | 4TH St & Buffalo Av | San Bernardino | 16 | 8 | 0 | 2 |
| 21 | Arrow Rt & Vineyard Av | San Bernardino | 16 | 8 | 0 | 4 |
| 22 | Foothill Bl & Milliken Av | San Bernardino | 15 | 9 | 0 | 2 |
| 23 | 19TH St & Archibald Av | San Bernardino | 15 | 7 | 0 | none reported yet |
| 24 | Archibald Av & Baseline Rd | San Bernardino | 15 | 3 | 0 | none reported yet |
| 25 | 4TH St & Archibald Av | San Bernardino | 14 | 13 | 0 | none reported yet |
| 26 | Foothill Bl & Masi Dr | San Bernardino | 14 | 10 | 0 | none reported yet |
| 27 | Arrow Rt & Etiwanda Av | San Bernardino | 14 | 4 | 0 | 7 |
| 28 | 8TH St & Archibald Av | San Bernardino | 13 | 3 | 1 | 1 |
| 29 | 4TH St & Haven Av | San Bernardino | 13 | 9 | 0 | 1 |
| 30 | 9TH St & Hellman Av | San Bernardino | 13 | 8 | 0 | 1 |
| 31 | Haven Av & Lemon Av | San Bernardino | 13 | 5 | 0 | 1 |
| 32 | Church St & Rochester Av | San Bernardino | 13 | 5 | 0 | 1 |
| 33 | Alta Loma Dr & Haven Av | San Bernardino | 13 | 3 | 0 | none reported yet |
| 34 | Church St & Spruce Av | San Bernardino | 12 | 8 | 0 | 3 |
| 35 | 6TH St & Milliken Av | San Bernardino | 12 | 3 | 0 | none reported yet |
| 36 | Foothill Bl & Ramona Av | San Bernardino | 12 | 3 | 0 | none reported yet |
| 37 | 9TH St & Grove Av | San Bernardino | 11 | 8 | 1 | 3 |
| 38 | Arrow Rt & Baker Av | San Bernardino | 11 | 6 | 0 | 1 |
This ranking covers 2023–2025. The 2026 figures are separate. They run from January to August 2026 — every whole month the state has published so far — and they are not part of the ranking or of any total above. Police agencies file at different speeds, so putting a part-reported year in a ranking would order agencies by how fast they file rather than roads by how often they are hit.
Recent months are still filling in, so treat them as a floor rather than a count. August 2026 held about 48% of what that month averaged across 2023–2025 when this data was compiled, so its real total will be higher. September 2026 is left out entirely: the state's file stops on 2026-09-01, so that month holds 15 records — a part of a month rather than a month that is late being filed.
Reporting runs at different speeds from one police department to the next, so this matters more than the statewide figure: Rancho Cucamonga has filed 930 crashes for January–August 2026, against about 1,003 predicted by the same 2023–2025 crash rate — roughly 93%. So "none reported yet" in the 2026 column means no report has arrived for that junction, which is not the same as no crash happening there.
Sources: California Crash Reporting System (CCRS), California Highway Patrol; locations from the US Census Geocoder, each confirmed by a second independent source to within 50 metres. Method and limitations: methodology.