Houston's highest-injury roads: I-45, I-10, 610, Beltway 8, US-59/I-69 and Westheimer (crash data)
Official City of Houston and NHTSA crash data for I-45, I-10, the 610 Loop, Beltway 8, US-59/I-69 and Westheimer Road, with fatal and serious-injury crash counts by year, the method, and what the numbers can and cannot tell you.
The short answer
In official City of Houston crash data for 2018 to 2023, I-45, the 610 Loop, US-59/I-69, I-10, Beltway 8 and Westheimer Road were the six streets with the most crashes in which someone was killed or seriously injured. Together they account for about 35% of those crashes in the dataset (3,339 of 9,528). Federal FARS data for Harris County shows the same roads with between 7 and 54 fatal crashes each per year from 2019 to 2024.
This guide gives the counts by year for each road, explains how they were built, and is clear about what they cannot tell you. It is general information about public data, not legal advice, and it says nothing about any particular crash.
Key facts (data as of 2026-10-22)
- Data sources. The City of Houston's Vision Zero layer of traffic deaths and serious injuries, January 2018 to May 2024 (built from TxDOT's crash records system, CRIS; layer last updated 2024-08-21), and NHTSA's Fatality Analysis Reporting System (FARS) for Harris County, 2019 to 2024 (files dated 2026). See Vision Zero Houston and NHTSA FARS.
- What is counted. "KSI crashes" are crashes in which at least one person was killed (K) or suspected seriously injured (A), as recorded by the reporting officer. Minor-injury and property-damage-only crashes are not in the public City layer.
- Six roads, about 35% of KSI crashes. I-45 (840), the 610 Loop (656), US-59/I-69 (650), I-10 (490), Beltway 8 (440) and Westheimer Road (263), out of 9,528 KSI crashes in the City dataset for 2018 to 2023. The same six had the most fatal crashes: 629 of 1,621 (about 39%).
- Fatal crashes county-wide. FARS counts 2,979 fatal crashes in Harris County from 2019 to 2024; 907 of them (about 30%) were on these six roads.
- Download the numbers. houston-corridor-crashes-2018-2024.csv has every count on this page, by road, source and year.
- Data credit. NHTSA FARS data is a work of the U.S. government and is not under copyright (17 U.S.C. §105). The City of Houston layer is public data published by the City of Houston Planning & Development Department from TxDOT CRIS records; the City does not state a license for it. Please credit "City of Houston Vision Zero (TxDOT CRIS)" and "NHTSA FARS" when you use these numbers.
How were these numbers built?
We downloaded the City of Houston's public traffic deaths and serious injuries layer and the NHTSA FARS crash files on 2026-10-22, and counted crashes by the road the officer recorded as the crash's main street. A few rules matter:
- One crash, one count. The City layer has one row per person killed or seriously injured; we collapsed it to one row per crash. A crash is "fatal" if anyone died.
- Every name a road goes by. Each road is matched under all the names the data uses: I-45 (North Freeway, Gulf Freeway), I-10 (Katy Freeway, East Freeway), the 610 Loop (North, South, East and West Loop), Beltway 8 (Sam Houston Tollway and Parkway), US-59/I-69 (Southwest Freeway, Eastex Freeway, and "Highway 59" north of Beltway 8) and Westheimer Road (including FM 1093). Freeway counts include crashes on frontage roads, which the crash records file under the freeway's name.
- Main street only. A crash at a cross street counts toward one of these roads only if the report lists that road as the main street. That makes the counts conservative.
- Two sources, two scopes. The City data covers crashes in and near Houston, so it does not include every mile of I-45, I-10, US-59/I-69 or Beltway 8 outside the city. FARS covers all of Harris County but only fatal crashes, and it counts deaths within 30 days of a crash.
The scripts, the full method and a list of every road name matched are published with the data. Nothing in the data or on this page identifies any person; it contains counts only.
I-45 (North Freeway and Gulf Freeway)
I-45 had more KSI crashes and more fatal crashes than any other street in the City data for 2018 to 2023 combined: 840 KSI crashes, 195 of them fatal, with 205 people killed and 717 seriously injured.
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 122 | 27 | — |
| 2019 | 146 | 34 | 40 |
| 2020 | 137 | 32 | 42 |
| 2021 | 150 | 28 | 38 |
| 2022 | 142 | 36 | 50 |
| 2023 | 143 | 38 | 54 |
| 2024 | 56 (Jan–May only) | 16 (Jan–May only) | 50 |
What the data can say: I-45 has had roughly 120 to 150 KSI crashes a year in the City data, and 38 to 54 fatal crashes a year county-wide in FARS since 2019. What it can't say: which stretch of I-45 or which lanes, or why crashes happened. The counts are not adjusted for how much traffic the road carries.
I-10 (Katy Freeway and East Freeway)
I-10 had 490 KSI crashes in the City data for 2018 to 2023, 97 of them fatal (100 people killed, 431 seriously injured).
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 61 | 11 | — |
| 2019 | 88 | 14 | 26 |
| 2020 | 67 | 12 | 19 |
| 2021 | 81 | 14 | 28 |
| 2022 | 109 | 25 | 40 |
| 2023 | 84 | 21 | 41 |
| 2024 | 37 (Jan–May only) | 10 (Jan–May only) | 32 |
What the data can say: I-10's highest year in both sources was 2022 or 2023, and FARS fatal crashes on I-10 in Harris County were higher in 2021 to 2024 than in 2019 and 2020. What it can't say: whether the change reflects traffic, construction, reporting or something else. Much of I-10's length in Harris County lies outside the City data, so use the FARS column for the county-wide picture.
The 610 Loop
The 610 Loop had 656 KSI crashes in the City data for 2018 to 2023, the second-highest count, but fewer of them were fatal: 93 fatal crashes (96 people killed, 661 seriously injured).
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 82 | 9 | — |
| 2019 | 94 | 15 | 14 |
| 2020 | 119 | 15 | 14 |
| 2021 | 117 | 19 | 19 |
| 2022 | 124 | 16 | 17 |
| 2023 | 120 | 19 | 19 |
| 2024 | 32 (Jan–May only) | 11 (Jan–May only) | 16 |
What the data can say: the Loop's KSI crashes rose from 82 in 2018 to about 120 a year from 2020 to 2023, while fatal crashes stayed between 14 and 19 a year in FARS. In FARS, 94 of the Loop's 99 fatal crashes from 2019 to 2024 were recorded inside the City of Houston, so the two sources cover nearly the same road here. What it can't say: which section of the North, South, East or West Loop the crashes were on.
Beltway 8 (Sam Houston Tollway and Parkway)
Beltway 8 had 440 KSI crashes in the City data for 2018 to 2023, 71 of them fatal (75 people killed, 437 seriously injured). The count includes the tollway main lanes and the Sam Houston Parkway frontage roads.
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 74 | 11 | — |
| 2019 | 61 | 8 | 13 |
| 2020 | 69 | 9 | 20 |
| 2021 | 81 | 10 | 26 |
| 2022 | 79 | 19 | 31 |
| 2023 | 76 | 14 | 22 |
| 2024 | 35 (Jan–May only) | 5 (Jan–May only) | 20 |
What the data can say: FARS counts more fatal crashes on Beltway 8 county-wide (13 to 31 a year) than the City data does, because much of the Beltway is outside Houston: only 70 of its 132 FARS fatal crashes from 2019 to 2024 were recorded inside the City of Houston. What it can't say: whether a crash was on the tolled main lanes or on the free frontage road; the data records both under the same name.
US-59/I-69 (Southwest Freeway and Eastex Freeway)
US-59/I-69 had 650 KSI crashes in the City data for 2018 to 2023, 106 of them fatal (111 people killed, 610 seriously injured). In 2021 to 2023 it had the second-highest KSI count of any street in the City data, after I-45.
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 71 | 10 | — |
| 2019 | 76 | 7 | 9 |
| 2020 | 103 | 18 | 18 |
| 2021 | 136 | 29 | 32 |
| 2022 | 125 | 15 | 21 |
| 2023 | 139 | 27 | 30 |
| 2024 | 47 (Jan–May only) | 13 (Jan–May only) | 35 |
Is the rise from 9 to 35 fatal crashes real? We checked. FARS records this road as I-69, usually together with US-59, in every year from 2019 to 2024, and our count includes every version of the name. A location check found no 2019 fatal crash on the freeway that the name rules missed. The City of Houston's dataset, compiled separately from state crash records, shows a similar rise (7 fatal crashes in 2019, 27 in 2023). So the increase is in the data, not an artifact of how the road was named. What the data can't say: why it rose. Counts this small swing from year to year, and the data does not record traffic volumes or construction.
Westheimer Road (including FM 1093)
Westheimer Road is the only surface street among the six. It had 263 KSI crashes in the City data for 2018 to 2023, 67 of them fatal (69 people killed, 215 seriously injured), more than any other non-freeway street in the dataset.
| Year | City data: KSI crashes | City data: fatal crashes | FARS, Harris County: fatal crashes |
|---|---|---|---|
| 2018 | 23 | 4 | — |
| 2019 | 32 | 8 | 8 |
| 2020 | 52 | 19 | 19 |
| 2021 | 62 | 15 | 15 |
| 2022 | 51 | 10 | 11 |
| 2023 | 43 | 11 | 11 |
| 2024 | 17 (Jan–May only) | 7 (Jan–May only) | 7 |
Why FM 1093? The state crash records system records Westheimer Road west of the 610 Loop under its state designation, FM 1093, and east of the Loop as Westheimer Rd. In the City data, none of the 224 mapped FM 1093 crashes lies east of the West Loop, and none of the 30 mapped "Westheimer Rd" crashes lies west of it, so we count both names as one road. Westheimer Parkway (also FM 1093) west of SH 6 is included; Old Westheimer Road is not. What the data can say: about a quarter of Westheimer's KSI crashes were fatal, a higher share than on any of the five freeways. What it can't say: which blocks, or whether people walking or riding were involved; those details are in the crash-level data, which this guide does not publish.
What can't this data tell you?
- Risk per trip. These are counts, not rates per mile or per vehicle. A road that carries more traffic can have more crashes without being riskier for any one trip.
- All crashes. Only crashes with a death or suspected serious injury are in the public City layer. Total crash counts, including minor injuries, require a data extract from TxDOT's CRIS.
- The newest year in City data. The City layer ends in May 2024. FARS runs through 2024, and NHTSA can revise its most recent file.
- Causes or fault. The counts do not say why any crash happened or who was responsible.
- Anything about one crash. This guide publishes no crash-level records and cannot be used to look up a specific crash. If you were in a crash, the official record is the crash report; see How to get a crash report in Houston.
Where do the most serious crashes happen at intersections?
Our companion study, Houston intersections with the most serious crashes (2021–2023), uses the same City data to count KSI crashes at specific Houston intersections, many of them where these freeways meet major streets.
Related Houston information
- Houston car accident information: local crash-report offices, courts and roads.
- What To Do After a Car Accident in Houston: common first steps after a Houston crash.
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Frequently asked questions
- Which Houston roads have the most fatal and serious-injury crashes?
- In the City of Houston's Vision Zero crash data for 2018 to 2023, the six streets with the most crashes that killed or seriously injured someone were I-45 (840 crashes), the 610 Loop (656), US-59/I-69 (650), I-10 (490), Beltway 8 (440) and Westheimer Road (263). Together they account for about 35% of the 9,528 such crashes in the dataset for those years.
- Does this mean these are the most dangerous roads in Houston?
- Not by itself. These are counts of crashes, not rates. Roads carry very different amounts of traffic, and the data used here is not adjusted for traffic volume or road length, so it does not show the risk of any single trip.
- Why does Westheimer Road appear as FM 1093 in crash data?
- The state crash records system records Westheimer Road west of the 610 Loop under its state highway designation, FM 1093, and east of the Loop as Westheimer Rd. This guide counts both names as Westheimer Road.
- Did fatal crashes on US-59/I-69 really increase between 2019 and 2024?
- The federal FARS data counts 9 fatal crashes on US-59/I-69 in Harris County in 2019 and 35 in 2024. We checked whether this was a road-naming change in the data and found it was not; the City of Houston's separate dataset shows a similar pattern. Counts this small can move a lot from year to year, and the data does not say why they changed.
- Where can I get the police report for a crash on one of these roads?
- Texas crash reports (form CR-3) can be purchased online through TxDOT's Crash Records Information System. Our guide to getting a crash report in Houston explains who may obtain one and how Houston-area agencies handle requests.
Sources
- City of Houston, Vision Zero Houston (High Injury Network map and traffic death and serious injury data, January 2018 to May 2024)
- NHTSA, Fatality Analysis Reporting System (FARS)
- NHTSA, FARS 2024 national data file (CSV; accident table used, filtered to Harris County)
- TxDOT, Motor Vehicle Crash Statistics (Crash Records Information System, CRIS)
- 17 U.S.C. §105 (no copyright in works of the U.S. government)
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