| Data years | 2020-2024[1][2][3][4][5] |
|---|---|
| Route segment | I-55 in Illinois[1][2][3][4][5] |
| Deaths in large-truck crashes, 2020-2024 | 64[1][2][3][4][5] |
| All deaths on the route segment, 2020-2024 | 155[1][2][3][4][5] |
| Share of segment deaths in large-truck crashes | 41.3%[1][2][3][4][5] |
| Fatal crashes involving large trucks, 2020-2024 | 53[1][2][3][4][5] |
| 2024 data file | FARS Annual Report File[5] |
I-55 in Illinois recorded 64 deaths in large-truck crashes during 2020 to 2024, compared with 155 deaths across all fatal crashes assigned to the route in the state. Large-truck crashes accounted for 41.3% of those route deaths. The truck accident death count came from 53 fatal large-truck crashes. These measures distinguish people killed from crashes recorded: a fatal truck accident can involve multiple large trucks and can kill multiple people.[1][2][3][4][5][6][7]
For this I-55 Illinois summary, a truck accident means a fatal crash involving at least one medium or heavy truck with a gross vehicle weight rating greater than 10,000 pounds, excluding buses and motor homes. Deaths include everyone killed in qualifying crashes, not just truck occupants. Assignment uses the crash-level route fields: ROUTE=1 and a parseable I-route number in TWAY_ID. Those fields identify route signing and crash location, rather than the highway's full geographic extent.[1][2][3][4][5][6][7]
Contents
I-55 truck accident deaths in Illinois by year
Annual truck accident deaths on I-55 in Illinois rose from 9 in 2020 to 13 in 2021 and 16 in 2022. They then fell to 14 in 2023 and 12 in 2024. The highest large-truck death count was 16 in 2022; the lowest was 9 in 2020. The 2024 count remained higher than the 2020 count.[1][2][3][4][5]
All-route deaths followed a different sequence: 28 in 2020, 35 in 2021, 31 in 2022, 32 in 2023 and 29 in 2024. Their highest year was 2021, while their lowest was 2020. Thus, the truck accident death maximum and all-route death maximum occurred in different years. Both measures reached their lowest recorded annual counts in 2020 within this reporting period.[1][2][3][4][5]
| Year | Deaths in large-truck crashes | All deaths on the route |
|---|---|---|
| 2020 | 9 | 28 |
| 2021 | 13 | 35 |
| 2022 | 16 | 31 |
| 2023 | 14 | 32 |
| 2024 | 12 | 29 |
Crashes are placed on the route by the trafficway identifier recorded for each fatal crash. 2024 is the Annual Report File.
Counties along I-55 in Illinois
Truck accident deaths assigned to I-55 in Illinois occurred in 11 counties. Among the listed rows, Will County had the highest death count, 13, and share, 20.3%, followed by Montgomery County with 10 and 15.6%. Sangamon County, Cook County and McLean County each recorded 7 deaths and 10.9%.[1][2][3][4][5][6]
Logan County recorded 5 deaths, or 7.8%, and DuPage County recorded 4, or 6.2%. Livingston County, Madison County and Grundy County each recorded 3 deaths and 4.7%, tying for the lowest death count among the listed rows. These county shares use the state's route truck accident death total. County assignments describe crash locations, not where the people killed lived.[1][2][3][4][5][6]
| County | Deaths in large-truck crashes, 2020-2024 | Share of the route total in the state |
|---|---|---|
| Will County | 13 | 20.3% |
| Montgomery County | 10 | 15.6% |
| Sangamon County | 7 | 10.9% |
| Cook County | 7 | 10.9% |
| McLean County | 7 | 10.9% |
| Logan County | 5 | 7.8% |
| DuPage County | 4 | 6.2% |
| Livingston County | 3 | 4.7% |
| Madison County | 3 | 4.7% |
| Grundy County | 3 | 4.7% |
How the truck crashes on I-55 happened
Rear-end crashes accounted for 29 deaths, or 45.3%, on I-55 in Illinois. Angle (side impact) recorded 9 and 14.1%; sideswipe, 3 and 4.7%; head-on, 7 and 10.9%; and not reported, 4 and 6.2%. The row "Not a collision with another moving vehicle" recorded 12 deaths and 18.8%. Manner of collision describes the first harmful event. That row means no collision with a motor vehicle in transport, including events such as rollovers or impacts with parked vehicles. A vehicle stopped in traffic can be in transport.[1][2][3][4][5][6]
Daytime truck accident deaths numbered 25, or 39.1%, versus nighttime's 39, or 60.9%. Urban locations recorded 35 deaths and 54.7%; rural locations recorded 29 and 45.3%. Work-zone truck accident deaths numbered 9. These collision, time, land-use and work-zone figures count people killed, rather than trucks or fatal crashes.[1][2][3][4][5][6]
I-55 in other states
Across I-55, the supplied route-wide count was 153 deaths in large-truck crashes during 2020 to 2024, with deaths recorded in 6 states. Illinois accounted for 64 deaths and 41.8% of that route-wide total. The listed other state segments recorded 33 deaths in Mississippi and 24 in Missouri. Mississippi's count exceeded Missouri's; Illinois recorded a higher count than either listed segment.[1][2][3][4][5][6]
The other-state table presents a subset of segments, so its entries do not define the route-wide truck accident total. These are location-based death counts, not traffic-adjusted risk rankings. Whether reading for reference or searching for a truck accident lawyer, keep each state's count attached to its recorded crash locations.[1][2][3][4][5][6]
About these figures
The I-55 Illinois truck accident figures use NHTSA's Fatality Analysis Reporting System, a census of fatal motor vehicle traffic crashes. Inclusion requires a motor vehicle on a trafficway customarily open to the public and a death within 30 days. Nonfatal crashes and injuries are excluded. State and county counts follow crash locations, not residence.[8][6][7]
For I-55 in Illinois, crash-level ROUTE and TWAY_ID fields govern assignment; they do not describe the highway's full geographic extent. Large-truck involvement does not establish fault. The 2020 to 2023 figures use FARS Final Files. The 2024 Annual Report File can change when replaced by the Final File. These truck accident counts cannot establish relative risk per trip or mile.[8][6][7]
See also
- Illinois truck accident statistics (2020-2024)
- I-55 truck accidents in Mississippi (2020-2024)
- I-55 truck accidents in Missouri (2020-2024)
On related publications
- Truck accident statistics for Cook County, Illinois (2020-2024) (truckaccidentlawyer.wiki)
- Truck accident statistics for Will County, Illinois (2020-2024) (truckaccidentlawyer.wiki)
- Truck accident statistics for DuPage County, Illinois (2020-2024) (truckaccidentlawyer.wiki)
- Truck accident statistics for Madison County, Illinois (2020-2024) (truckaccidentlawyer.wiki)
References
- abcdefghijklmnopqrst "Fatality Analysis Reporting System (FARS) 2020 national data files (Final File)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcdefghijklmnopqrst "Fatality Analysis Reporting System (FARS) 2021 national data files (Final File)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcdefghijklmnopqrst "Fatality Analysis Reporting System (FARS) 2022 national data files (Final File)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcdefghijklmnopqrst "Fatality Analysis Reporting System (FARS) 2023 national data files (Final File)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcdefghijklmnopqrstu "Fatality Analysis Reporting System (FARS) 2024 national data files (Annual Report File)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcdefghij "Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- abcd "Large trucks: 2024 data (DOT HS 813 816, June 2026)". National Highway Traffic Safety Administration. Official source. Checked . Source record
- ab "Overview of motor vehicle traffic crashes in 2024 (DOT HS 813 791, April 2026)". National Highway Traffic Safety Administration. Official source. Checked . Source record