Collision history: Sr 4 & Walnut Blvd, Contra Costa
CrashGuide reports only what the named agency published. Missing fields are omitted; no fault or cause is inferred.
Recent dispatch activity
9 CHP or San Francisco dispatch records here between July 13, 2026 and October 11, 2026.
CHP: 9 · San Francisco: 0
Dispatch records in this window
- Collision with no reported injuries at SR-4 and Walnut Blvd — October 10, 2026, 3:59 PMOctober 10, 2026
- Hit-and-run reported on SR-4 at Walnut Blvd — September 29, 2026, 4:56 PMSeptember 29, 2026
- Collision with no reported injuries at SR-4 and Walnut Blvd — September 18, 2026, 6:18 AMSeptember 18, 2026
- Hit-and-run reported on SR-4 at Walnut Blvd — September 16, 2026, 8:19 PMSeptember 16, 2026
- Injury collision at SR-4 and Walnut Blvd — September 11, 2026, 9:55 PMSeptember 11, 2026
- Collision with possible injuries at SR-4 and Walnut Blvd — September 11, 2026, 6:35 PMSeptember 11, 2026
- Injury collision at SR-4 and Walnut Blvd — September 1, 2026, 6:50 PMSeptember 1, 2026
- Collision with no reported injuries at SR-4 and Walnut Blvd — August 22, 2026, 5:04 PMAugust 22, 2026
- Collision with no reported injuries at SR-4 and Walnut Blvd — August 19, 2026, 4:50 PMAugust 19, 2026
Filed collision-report history
63 CCRS collision reports were recorded here between January 2019 and June 2026, including 35 collisions with injuries recorded.
- Recorded collisions
- 63
- Collisions with injuries recorded
- 35
Available report pages within this archive window
- CCRS recorded a collision at SR-4 EASTBOUND / WALNUT BLVD — June 5, 2026, 2:04 PMJune 5, 2026
- CCRS recorded a collision at STATE ROUTE 4 (MARSH CREEK RD) / WALNUT BOULEVARD — May 24, 2026, 4:05 PMMay 24, 2026
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BLVD — May 21, 2026, 7:00 AMMay 21, 2026
- CCRS recorded a collision at WALNUT BLVD NORTHBOUND / SR-4 (MARSH CREEK RD) — April 30, 2026, 5:25 PMApril 30, 2026
- CCRS recorded a collision at SR-4 E/B / WALNUT BLVD. — February 24, 2026, 3:50 PMFebruary 24, 2026
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BOULEVARD — November 19, 2025, 6:40 PMNovember 19, 2025
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BOULEVARD — October 4, 2025, 7:25 PMOctober 4, 2025
- CCRS recorded a collision at SR-4 E/B (MARSH CREEK RD) / WALNUT BLVD — September 1, 2025, 3:15 PMSeptember 1, 2025
- CCRS recorded a collision at SR-4 / WALNUT BOULEVARD — August 14, 2025, 6:40 PMAugust 14, 2025
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BLVD — July 30, 2025, 8:35 AMJuly 30, 2025
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BLVD — July 26, 2025, 9:00 PMJuly 26, 2025
- CCRS recorded a collision at SR-4 (MARSH CREEK ROAD) / WALNUT BOULEVARD — June 15, 2025, 2:30 PMJune 15, 2025
- CCRS recorded a collision at SR-4 E/B / WALNUT BLVD — May 24, 2025, 1:52 PMMay 24, 2025
- CCRS recorded a collision at SR-4 (MARSH CREEK RD) / WALNUT BLVD — May 21, 2025, 4:20 PMMay 21, 2025
- CCRS recorded a collision at SR-4 E/B / WALNUT BLVD — March 28, 2025, 5:55 AMMarch 28, 2025
These figures are shown separately because dispatch records and filed collision reports cover different periods and count different records.