I-55 in Louisiana: fatal crashes
From 2015 to 2024, 50 fatal crashes on I-55 in Louisiana killed 55 people, the 20th most of 615 numbered roads in Louisiana. In 2024 there were 3 fatal crashes and 3 deaths on the road.
An interstate running through 2 counties of Louisiana. All fatal crashes in Louisiana. I-55 in every state.
Deaths on I-55 in Louisiana by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 3 | 3 |
| 2023 | 7 | 10 |
| 2022 | 5 | 5 |
| 2021 | 4 | 4 |
| 2020 | 5 | 6 |
| 2019 | 4 | 4 |
| 2018 | 5 | 5 |
| 2017 | 10 | 11 |
| 2016 | 4 | 4 |
| 2015 | 3 | 3 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-55 in Louisiana: the counties with the most fatal crashes
Tangipahoa Parish had the most fatal crashes on I-55 from 2015 to 2024: 38, with 40 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Tangipahoa Parish | 2 | 38 | 40 |
| 2 | St. John the Baptist Parish | 1 | 12 | 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-55 in Louisiana
50 fatal crashes on I-55 in Louisiana from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 8 am to 9 am; the worst month is October.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 8.0 percent, 4 fatal crashes | 4.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.0 percent, 1 fatal crash | 2.0 percent, 1 fatal crash |
| Mon | 4.0 percent, 2 fatal crashes | 2.0 percent, 1 fatal crash | 16.0 percent, 8 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Tue | 2.0 percent, 1 fatal crash | 4.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes |
| Wed | 4.0 percent, 2 fatal crashes | 2.0 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 2 fatal crashes | 6.0 percent, 3 fatal crashes | 2.0 percent, 1 fatal crash | 6.0 percent, 3 fatal crashes |
| Fri | 2.0 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.0 percent, 1 fatal crash | 4.0 percent, 2 fatal crashes | 6.0 percent, 3 fatal crashes |
| Sat | 4.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 2.0 percent, 1 fatal crash | 2.0 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.0 percent, 1 fatal crash |
By hour
By month
- Jan8.0%
- Feb8.0%
- Mar6.0%
- Apr12.0%
- May2.0%
- Jun10.0%
- Jul10.0%
- Aug14.0%
- Sep0.0%
- Oct20.0%
- Nov2.0%
- Dec8.0%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Fatal crashes per mile on I-55 in Louisiana
7.6 fatal crashes a year per 100 miles over 2015 to 2024, on 66 miles of I-55 in Louisiana, against 10.6 for all interstates in Louisiana. That ranks 4 of 5 interstates in Louisiana and 94 of 172 interstate pages on this site.
Mileage from the FHWA Interstate route log (table 1), the only figure here not counted from FARS. Crashes per mile of road, not per vehicle: FARS records crashes, not traffic.
What fatal crashes on I-55 in Louisiana first hit
The first harmful event was a collision with another vehicle in 50%; a fixed object such as a tree, pole or barrier in 22%, a pedestrian in 8.0%, a rollover in 8.0%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 25 | 50% |
| Fixed object (tree, pole, barrier, ditch) | 11 | 22% |
| Pedestrian | 4 | 8.0% |
| Rollover | 4 | 8.0% |
| Parked vehicle | 3 | 6.0% |
| Other | 3 | 6.0% |
| Cyclist | 0 | 0.0% |
| 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-55 in Louisiana compare with the state
The largest difference from Louisiana: from 2015 to 2024, 57% of fatal crashes on I-55 in Louisiana were in the dark on unlit roads, against 35% across Louisiana. Also above the Louisiana share: distracted drivers. Below it: intersections and unbelted occupants. Shares of fatal crashes from 2015 to 2024, against the share across all of Louisiana. A share is only given over 20 crashes; above or below means more than chance would give on 50 crashes.
| I-55 | Louisiana | ||
|---|---|---|---|
| On rural stretches | 38% | 45% | about the same as the Louisiana share |
| At or near an intersection | 0.0% | 20% | below the Louisiana share |
| In the dark, road unlit | 57% | 35% | above the Louisiana share |
| A drinking driver | 36% | 31% | about the same as the Louisiana share |
| Speeding | 30% | 22% | about the same as the Louisiana share |
| A distracted driver (as recorded) | 38% | 21% | above the Louisiana share |
| Occupants killed unbelted | 38% | 57% | below the Louisiana share |
| Hit-and-run | 2.0% | 7.3% | about the same as the Louisiana share |
| A motorcycle involved | 8.0% | 12% | about the same as the Louisiana share |
| Pedestrians among the dead | 13% | 18% | about the same as the Louisiana 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-55 in Louisiana
- How many fatal crashes have there been on I-55 in Louisiana?
- 50 fatal crashes killed 55 people on I-55 in Louisiana from 2015 to 2024. In 2024 there were 3 fatal crashes and 3 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on I-55 in Louisiana do the most fatal crashes happen?
- Tangipahoa Parish had the most fatal crashes on I-55 from 2015 to 2024: 38, with 40 deaths. St. John the Baptist Parish was second with 12.
- How dangerous is I-55 in Louisiana per mile?
- 7.6 fatal crashes a year per 100 miles over 2015 to 2024, on 66 miles of road, against 10.6 for all interstates in Louisiana. That ranks 4 of 5 interstates in Louisiana and 94 of 172 interstate pages on this site. FARS records crashes, not traffic, so this is crashes per mile of road, not per vehicle.
Other roads in Louisiana with a page
- I-10
- I-12
- I-20
- I-49
- State Highway 1
- State Highway 10
- State Highway 16
- State Highway 182
- State Highway 22
- State Highway 30
- State Highway 308
- US 165
All fatal crashes in Louisiana, with every road ranked.
Where the I-55 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-55 in Louisiana. 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.