Accident High Severity Resolved

CHP : Severe traffic alert and Traffic Collision on I-680 Southbound south of Monument Blvd (Pleasant Hill). Right and center lanes blocked. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on April 8, 2026 at 1:48 AM.

Road

I-680 S

Area

Contra Costa

Address

Loading…

Started

Apr 7, 6:48 PM

Last Updated

2 months ago

Apr 7, 7:15 PM

Resolved

Apr 8, 1:30 AM

Coordinates

37.9414, -122.0601

Update History

2 observations

CHP : Severe traffic alert and Traffic Collision on I-680 Southbound south of Monument Blvd (Pleasant Hill). Right and center lanes blocked. Expect delays. Apr 7, 7:15 PM

CHP : Traffic Hazard on I-680 Southbound north of Oak Park Blvd (Pleasant Hill). Lane affected. Expect delays. Apr 7, 7:00 PM

Source: 511_sfbay · ID 511.org/1478204 First seen Apr 7, 2026 7:00 PM

← All California Incidents More in Contra Costa More on I-680 S