Between 2020 and 2026, Harris County recorded 852,629 reported crashes, including 3,572 deaths and 18,469 serious injuries, according to the Texas Department of Transportation's Crash Records Information System (CRIS). The highest-crash corridor was Interstate 45, with 56,059 crashes and 311 deaths over this period.
The 12 highway corridors ranked below account for 270,563 crashes — about 32% of every reported crash in the county — concentrating a large share of the area's most severe collisions onto a handful of roads.
Where the Crashes Concentrate
Interstate 45
Interstate 45 leads the county with 56,059 crashes, 311 deaths, and 1,140 serious injuries from 2020 through 2026. The most frequently recorded contributing factor in these crashes was “Failed To Control Speed.”
Across these corridors, the contributing factor recorded most often by investigating officers was “Failed To Control Speed” — a pattern consistent with high-speed, high-volume travel.
Highway Corridors Ranked by Crash Volume
| # | Corridor | Crashes | Deaths | Serious |
|---|---|---|---|---|
| 1 | Interstate 45Gulf Freeway / North Freeway | 56,059 | 311 | 1,140 |
| 2 | Interstate 10Katy Freeway / East Freeway | 42,140 | 226 | 923 |
| 3 | Interstate 610Loop 610 | 33,901 | 123 | 799 |
| 4 | State Loop 8Sam Houston Tollway / Beltway 8 | 32,177 | 178 | 632 |
| 5 | Interstate 69Eastex / Southwest Freeway (co-signed U.S. 59) | 28,054 | 191 | 691 |
| 6 | U.S. Highway 290Northwest Freeway | 17,948 | 56 | 364 |
| 7 | FM 1960 | 17,275 | 92 | 381 |
| 8 | State Highway 249Tomball Parkway | 10,512 | 75 | 273 |
| 9 | State Highway 6 | 9,186 | 65 | 236 |
| 10 | U.S. Highway 90 (Alt.)U.S. 90 Alternate | 8,150 | 34 | 228 |
| 11 | FM 1093Westheimer Parkway | 7,776 | 81 | 228 |
| 12 | State Highway 288South Freeway | 7,385 | 37 | 196 |
Ranked by total reported crashes, 2020–2026. Deaths and serious-injury counts are persons, not crashes.
Data & Methodology
The underlying crash records come from the Texas Department of Transportation's Crash Records Information System (CRIS), the official statewide record of reported traffic crashes, covering January 2020 through August 2026 in Harris County.
The corridor‑level dataset on this page is original work produced by Local Traffic Accidents. We geocode the underlying incidents, match them to the numbered state‑highway system, and compute the per‑corridor crash, fatality, and serious‑injury totals, rankings, concentration shares, and per‑1,000 lethality rates shown here. The raw crash records are TxDOT's; the corridor identification, the derived statistics, and the rankings are our own.
Corridors are ranked by total reported crashes. “Deaths” counts persons killed and “serious injuries” counts persons with suspected serious injuries (the official KABCO “A” level), summed across all crashes on each corridor — not crash counts. This ranking covers the numbered state highway system (Interstates, U.S. and state highways, FM/RM roads, loops, and spurs); locally maintained surface streets are recorded under a separate, free-text field and are not included here. Each route is reported under its primary TxDOT designation; co-signed routes (for example, I-69 and U.S. 59) are noted but not combined.
Derived dataset & analysis: Local Traffic Accidents — corridor‑level geocoding, computation, and rankings, published as an original dataset.
Related Coverage
Explore live and recent crash coverage for Harris County:
• Real-Time Houston-Area Accident Map — Live incident tracking
• Latest Accident Reports — Breaking crash coverage