Fatal Crash Data

I-580 in California: fatal crashes

From 2015 to 2024, 147 fatal crashes on I-580 in California killed 156 people, the 20th most of any numbered road in California. In 2024 there were 21 fatal crashes and 24 deaths on the road.

An interstate running through 5 counties of California. All fatal crashes in California. I-580 in every state.

Deaths on I-580 in California by year

1020201620182020202220242024: 24
YearFatal crashesDeaths
20242124
20231819
20221919
20211414
20201314
20191010
201899
20171516
20161314
20151517

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

Where on I-580 in California: the counties with the most fatal crashes

Alameda County had the most fatal crashes on I-580 from 2015 to 2024: 112, with 116 deaths. Alameda, San Joaquin and Contra Costa counties together held 97% of fatal crashes in I-580 in California from 2015 to 2024. Counties are listed from 5 fatal crashes.

County20242015 to 2024Deaths
1Alameda County15112116
2San Joaquin County41721
3Contra Costa County11415

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

When fatal crashes happen on I-580 in California

The heaviest slot is Sunday, midnight to 4 am, with 11 fatal crashes from 2015 to 2024. The worst hour is midnight to 1 am; the worst month is May.

Share of fatal crashes in I-580 in California by weekday and time of day, 2015 to 2024, in percent
Midnight to 44 to 8 am8 to noonNoon to 44 to 8 pm8 to midnight
Sun7.5 percent, 11 fatal crashes4.8 percent, 7 fatal crashes2.1 percent, 3 fatal crashes1.4 percent, 2 fatal crashes2.7 percent, 4 fatal crashes0.7 percent, 1 fatal crashes
Mon3.4 percent, 5 fatal crashes0.7 percent, 1 fatal crashes2.1 percent, 3 fatal crashes0.7 percent, 1 fatal crashes0.7 percent, 1 fatal crashes1.4 percent, 2 fatal crashes
Tue2.1 percent, 3 fatal crashes2.7 percent, 4 fatal crashes0.7 percent, 1 fatal crashes3.4 percent, 5 fatal crashes0.7 percent, 1 fatal crashes2.1 percent, 3 fatal crashes
Wed2.1 percent, 3 fatal crashes4.8 percent, 7 fatal crashes0.0 percent, 0 fatal crashes1.4 percent, 2 fatal crashes2.1 percent, 3 fatal crashes3.4 percent, 5 fatal crashes
Thu3.4 percent, 5 fatal crashes2.7 percent, 4 fatal crashes2.7 percent, 4 fatal crashes2.1 percent, 3 fatal crashes0.7 percent, 1 fatal crashes4.1 percent, 6 fatal crashes
Fri2.1 percent, 3 fatal crashes2.1 percent, 3 fatal crashes0.7 percent, 1 fatal crashes1.4 percent, 2 fatal crashes1.4 percent, 2 fatal crashes4.1 percent, 6 fatal crashes
Sat5.5 percent, 8 fatal crashes3.4 percent, 5 fatal crashes2.7 percent, 4 fatal crashes2.7 percent, 4 fatal crashes2.7 percent, 4 fatal crashes2.1 percent, 3 fatal crashes

By hour

By month

  • Jan7.5%
  • Feb7.5%
  • Mar9.5%
  • Apr9.5%
  • May10.2%
  • Jun7.5%
  • Jul7.5%
  • Aug8.2%
  • Sep9.5%
  • Oct8.2%
  • Nov6.8%
  • Dec8.2%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

What fatal crashes on I-580 in California first hit

The first harmful event was a collision with another vehicle in 42%; a fixed object such as a tree, pole or barrier in 25%, a pedestrian in 17%, a rollover in 9.5%.

First harmful eventFatal crashesShare
Collision with another vehicle6242%
Fixed object (tree, pole, barrier, ditch)3725%
Pedestrian2517%
Rollover149.5%
Parked vehicle42.7%
Other42.7%
Cyclist10.7%
Not reported00.0%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

How fatal crashes on I-580 in California compare with the state

A drinking driver was recorded in 29% of fatal crashes in I-580 in California from 2015 to 2024, above the California share of 28%; speeding in 47%, above the California share of 30%; a hit-and-run in 15%, above the California share of 11%; a driver recorded as distracted in 6.1%, above the California share of 4.1%; 43% of passenger-vehicle occupants killed with belt use known were unbelted, above the California share of 38%. Shares of fatal crashes from 2015 to 2024, against the share across all of California. A share is only given over 20 crashes.

I-580California
On rural stretches27%30%below the California share
At or near an intersection1.4%27%below the California share
In the dark, road unlit34%25%above the California share
A drinking driver29%28%above the California share
Speeding47%30%above the California share
A distracted driver (as recorded)6.1%4.1%above the California share
Occupants killed unbelted43%38%above the California share
Hit-and-run15%11%above the California share
A motorcycle involved14%15%below the California share
Pedestrians among the dead19%26%below the California share

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

Questions about fatal crashes in I-580 in California

How many fatal crashes have there been on I-580 in California?
147 fatal crashes killed 156 people on I-580 in California from 2015 to 2024. In 2024 there were 21 fatal crashes and 24 deaths.
Where on I-580 in California do the most fatal crashes happen?
Alameda County had the most fatal crashes on I-580 from 2015 to 2024: 112, with 116 deaths. San Joaquin County was second with 17.
When do fatal crashes on I-580 in California happen most often?
The heaviest slot from 2015 to 2024 was Sunday, midnight to 4 am, with 11 fatal crashes.

Other roads in California with a page

All fatal crashes in California, with every road ranked.

Where the I-580 numbers come from

Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-580 in California (filed under 16 spellings, such as "I--580", "I-580", "I-580 ARTHUR H BREED FWY", "I-580 ARTHUR H BREED JR"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.