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 255 numbered roads 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
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 21 | 24 |
| 2023 | 18 | 19 |
| 2022 | 19 | 19 |
| 2021 | 14 | 14 |
| 2020 | 13 | 14 |
| 2019 | 10 | 10 |
| 2018 | 9 | 9 |
| 2017 | 15 | 16 |
| 2016 | 13 | 14 |
| 2015 | 15 | 17 |
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 on I-580 in California from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Alameda County | 15 | 112 | 116 |
| 2 | San Joaquin County | 4 | 17 | 21 |
| 3 | Contra Costa County | 1 | 14 | 15 |
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 (the night from Saturday), with 11 fatal crashes from 2015 to 2024. The worst hour is midnight to 1 am; the worst month is May.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 7.5 percent, 11 fatal crashes | 4.8 percent, 7 fatal crashes | 2.1 percent, 3 fatal crashes | 1.4 percent, 2 fatal crashes | 2.7 percent, 4 fatal crashes | 0.7 percent, 1 fatal crash |
| Mon | 3.4 percent, 5 fatal crashes | 0.7 percent, 1 fatal crash | 2.1 percent, 3 fatal crashes | 0.7 percent, 1 fatal crash | 0.7 percent, 1 fatal crash | 1.4 percent, 2 fatal crashes |
| Tue | 2.1 percent, 3 fatal crashes | 2.7 percent, 4 fatal crashes | 0.7 percent, 1 fatal crash | 3.4 percent, 5 fatal crashes | 0.7 percent, 1 fatal crash | 2.1 percent, 3 fatal crashes |
| Wed | 2.1 percent, 3 fatal crashes | 4.8 percent, 7 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 2 fatal crashes | 2.1 percent, 3 fatal crashes | 3.4 percent, 5 fatal crashes |
| Thu | 3.4 percent, 5 fatal crashes | 2.7 percent, 4 fatal crashes | 2.7 percent, 4 fatal crashes | 2.1 percent, 3 fatal crashes | 0.7 percent, 1 fatal crash | 4.1 percent, 6 fatal crashes |
| Fri | 2.1 percent, 3 fatal crashes | 2.1 percent, 3 fatal crashes | 0.7 percent, 1 fatal crash | 1.4 percent, 2 fatal crashes | 1.4 percent, 2 fatal crashes | 4.1 percent, 6 fatal crashes |
| Sat | 5.5 percent, 8 fatal crashes | 3.4 percent, 5 fatal crashes | 2.7 percent, 4 fatal crashes | 2.7 percent, 4 fatal crashes | 2.7 percent, 4 fatal crashes | 2.1 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 event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 62 | 42% |
| Fixed object (tree, pole, barrier, ditch) | 37 | 25% |
| Pedestrian | 25 | 17% |
| Rollover | 14 | 9.5% |
| Parked vehicle | 4 | 2.7% |
| Other | 4 | 2.7% |
| Cyclist | 1 | 0.7% |
| Not reported | 0 | 0.0% |
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
The largest difference from California: from 2015 to 2024, 1.4% of fatal crashes on I-580 in California were at or near an intersection, against 27% across California. Also above the California share: unlit roads at night and speeding. Shares of fatal crashes from 2015 to 2024, against the share across all of California. A share is only given over 20 crashes; above or below means more than chance would give on 147 crashes.
| I-580 | California | ||
|---|---|---|---|
| On rural stretches | 27% | 30% | about the same as the California share |
| At or near an intersection | 1.4% | 27% | below the California share |
| In the dark, road unlit | 34% | 25% | above the California share |
| A drinking driver | 29% | 28% | about the same as the California share |
| Speeding | 47% | 30% | above the California share |
| A distracted driver (as recorded) | 6.1% | 4.1% | about the same as the California share |
| Occupants killed unbelted | 43% | 38% | about the same as the California share |
| Hit-and-run | 15% | 11% | about the same as the California share |
| A motorcycle involved | 14% | 15% | about the same as the California share |
| Pedestrians among the dead | 19% | 26% | about the same as 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 on 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. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- 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 (the night from Saturday), 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. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.